NCBI Taxonomy: 347996

Quercitrin

C21H20O11 (448.1006)

Quercitrin, also known as quercimelin or quercitronic acid, belongs to the class of organic compounds known as flavonoid-3-o-glycosides. These are phenolic compounds containing a flavonoid moiety which is O-glycosidically linked to carbohydrate moiety at the C3-position. A quercetin O-glycoside that is quercetin substituted by a alpha-L-rhamnosyl moiety at position 3 via a glycosidic linkage. Quercitrin exists in all living organisms, ranging from bacteria to humans. Quercitrin is found, on average, in the highest concentration within a few different foods, such as lingonberries, american cranberries, and olives and in a lower concentration in common beans, tea, and welsh onions. Quercitrin has also been detected, but not quantified, in several different foods, such as guava, bilberries, common pea, apricots, and spearmints. Quercitrin is a quercetin O-glycoside that is quercetin substituted by a alpha-L-rhamnosyl moiety at position 3 via a glycosidic linkage. It has a role as an antioxidant, an antileishmanial agent, an EC 1.1.1.184 [carbonyl reductase (NADPH)] inhibitor, an EC 1.1.1.21 (aldehyde reductase) inhibitor, an EC 1.14.18.1 (tyrosinase) inhibitor and a plant metabolite. It is a monosaccharide derivative, a tetrahydroxyflavone, an alpha-L-rhamnoside and a quercetin O-glycoside. It is a conjugate acid of a quercitrin-7-olate. Quercitrin is a natural product found in Xylopia emarginata, Lotus ucrainicus, and other organisms with data available. Quercitrin is a glycoside formed from the flavonoid quercetin and the deoxy sugar rhamnose. It is a constituent of the dye quercitron. Quercitrin is found in many foods, some of which are garden tomato (variety), kiwi, italian sweet red pepper, and guava. A quercetin O-glycoside that is quercetin substituted by a alpha-L-rhamnosyl moiety at position 3 via a glycosidic linkage. [Raw Data] CBA03_Quercitrin_pos_10eV.txt [Raw Data] CBA03_Quercitrin_pos_20eV.txt [Raw Data] CBA03_Quercitrin_neg_50eV.txt [Raw Data] CBA03_Quercitrin_neg_30eV.txt [Raw Data] CBA03_Quercitrin_neg_10eV.txt [Raw Data] CBA03_Quercitrin_neg_40eV.txt [Raw Data] CBA03_Quercitrin_neg_20eV.txt [Raw Data] CBA03_Quercitrin_pos_50eV.txt [Raw Data] CBA03_Quercitrin_pos_30eV.txt [Raw Data] CBA03_Quercitrin_pos_40eV.txt Quercitrin. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=522-12-3 (retrieved 2024-07-09) (CAS RN: 522-12-3). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). Quercitrin (Quercetin 3-rhamnoside) is a bioflavonoid compound with potential anti-inflammation, antioxidative and neuroprotective effect. Quercitrin induces apoptosis of colon cancer cells. Quercitrin can be used for the research of cardiovascular and neurological disease research[1][2]. Quercitrin (Quercetin 3-rhamnoside) is a bioflavonoid compound with potential anti-inflammation, antioxidative and neuroprotective effect. Quercitrin induces apoptosis of colon cancer cells. Quercitrin can be used for the research of cardiovascular and neurological disease research[1][2]. Quercitrin (Quercetin 3-rhamnoside) is a bioflavonoid compound with potential anti-inflammation, antioxidative and neuroprotective effect. Quercitrin induces apoptosis of colon cancer cells. Quercitrin can be used for the research of cardiovascular and neurological disease research[1][2].

Catechin

C15H14O6 (290.079)

Catechin, also known as cyanidanol or catechuic acid, belongs to the class of organic compounds known as catechins. Catechins are compounds containing a catechin moiety, which is a 3,4-dihydro-2-chromene-3,5.7-tiol. Catechin also belongs to the group of compounds known as flavan-3-ols (or simply flavanols), part of the chemical family of flavonoids. Catechin is one of the 4 catechin known diastereoisomers. Two of the isomers are in trans configuration and are called catechin and the other two are in cis configuration and are called epicatechin. The most common catechin isomer is the (+)-catechin. The other stereoisomer is (-)-catechin or ent-catechin. The most common epicatechin isomer is (-)-epicatechin. Catechin is a very hydrophobic molecule, practically insoluble (in water), and relatively neutral. Catechin is a bitter tasting compound and is associated with the bitterness in tea. Catechin is a plant secondary metabolite. Secondary metabolites are metabolically or physiologically non-essential metabolites that may serve a role as defense or signalling molecules. In some cases they are simply molecules that arise from the incomplete metabolism of other secondary metabolites. Catechin is an antioxidant flavonoid, occurring especially in woody plants as both Catechin and (-)-Catechin (cis) forms. Outside of the human body, Catechin is found, on average, in the highest concentration in foods, such as blackcurrants (Ribes nigrum), evergreen blackberries (Rubus laciniatus), and blackberries (Rubus) and in a lower concentration in dills (Anethum graveolens), hot chocolates, and medlars (Mespilus germanica). Catechin has also been detected, but not quantified in, several different foods, such as rice (Oryza sativa), apple ciders, peanuts (Arachis hypogaea), fruit juices, and red teas. This could make catechin a potential biomarker for the consumption of these foods. Based on a literature review a significant number of articles have been published on Catechin. (+)-catechin is the (+)-enantiomer of catechin and a polyphenolic antioxidant plant metabolite. It has a role as an antioxidant and a plant metabolite. It is an enantiomer of a (-)-catechin. An antioxidant flavonoid, occurring especially in woody plants as both (+)-catechin and (-)-epicatechin (cis) forms. Cianidanol is a natural product found in Visnea mocanera, Salacia chinensis, and other organisms with data available. Catechin is a metabolite found in or produced by Saccharomyces cerevisiae. An antioxidant flavonoid, occurring especially in woody plants as both (+)-catechin and (-)-epicatechin (cis) forms. See also: Gallocatechin (related); Crofelemer (monomer of); Bilberry (part of) ... View More ... Present in red wine. Widespread in plants; found in a variety of foodstuffs especies apricots, broad beans, cherries, chocolate, grapes, nectarines, red wine, rhubarb, strawberries and tea The (+)-enantiomer of catechin and a polyphenolic antioxidant plant metabolite. Catechin. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=154-23-4 (retrieved 2024-07-12) (CAS RN: 154-23-4). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). (±)-Catechin (rel-Cianidanol) is the racemate of Catechin. (±)-Catechin has two steric forms of (+)-Catechin and its enantiomer (-)-Catechin. (+)-Catechin inhibits cyclooxygenase-1 (COX-1) with an IC50 of 1.4 μM. Anticancer, anti-obesity, antidiabetic, anticardiovascular, anti-infectious, hepatoprotective, and neuroprotective effects[1]. (±)-Catechin (rel-Cianidanol) is the racemate of Catechin. (±)-Catechin has two steric forms of (+)-Catechin and its enantiomer (-)-Catechin. (+)-Catechin inhibits cyclooxygenase-1 (COX-1) with an IC50 of 1.4 μM. Anticancer, anti-obesity, antidiabetic, anticardiovascular, anti-infectious, hepatoprotective, and neuroprotective effects[1]. Catechin ((+)-Catechin) inhibits cyclooxygenase-1 (COX-1) with an IC50 of 1.4 μM. Catechin ((+)-Catechin) inhibits cyclooxygenase-1 (COX-1) with an IC50 of 1.4 μM.

4-Hydroxycinnamic acid

C9H8O3 (164.0473)

4-Hydroxycinnamic acid, also known as p-Coumaric acid, is a coumaric acid in which the hydroxy substituent is located at C-4 of the phenyl ring. It has a role as a plant metabolite. It is a conjugate acid of a 4-coumarate. p-coumaric acid is an organic compound that is a hydroxy derivative of cinnamic acid. There are three isomers of coumaric acid: o-coumaric acid, m-coumaric acid, and p-coumaric acid, that differ by the position of the hydroxy substitution of the phenyl group. p-Coumaric acid is the most abundant isomer of the three in nature. p-Coumaric acid exists in two forms trans-p-coumaric acid and cis-p-coumaric acid. It is a crystalline solid that is slightly soluble in water, but very soluble in ethanol and diethyl ether. 4-Hydroxycinnamic acid belongs to the class of organic compounds known as hydroxycinnamic acids. Hydroxycinnamic acids are compounds containing an cinnamic acid where the benzene ring is hydroxylated. 4-Hydroxycinnamic acid exists in all living species, ranging from bacteria to humans. Outside of the human body, 4-Hydroxycinnamic acid is found, on average, in the highest concentration within a few different foods, such as pepper (Capsicum frutescens), pineapples, and sunflowers and in a lower concentration in spinachs, kiwis, and sweet oranges. 4-Hydroxycinnamic acid has also been detected, but not quantified in several different foods, such as wild rices, soursops, garden onions, hyssops, and avocado. 4-coumaric acid is a coumaric acid in which the hydroxy substituent is located at C-4 of the phenyl ring. It has a role as a plant metabolite. It is a conjugate acid of a 4-coumarate. 4-Hydroxycinnamic acid is a natural product found in Ficus septica, Visnea mocanera, and other organisms with data available. trans-4-Coumaric acid is a metabolite found in or produced by Saccharomyces cerevisiae. See also: Black Cohosh (part of); Galium aparine whole (part of); Lycium barbarum fruit (part of) ... View More ... Coumaric acid is a hydroxycinnamic acid, an organic compound that is a hydroxy derivative of cinnamic acid. There are three isomers, o-coumaric acid, m-coumaric acid, and p-coumaric acid, that differ by the position of the hydroxy substitution of the phenyl group. p-Coumaric acid is the most abundant isomer of the three in nature. p-Coumaric acid is found in many foods, some of which are garden onion, turmeric, green bell pepper, and common thyme. D012102 - Reproductive Control Agents > D003270 - Contraceptive Agents D000975 - Antioxidants > D016166 - Free Radical Scavengers D020011 - Protective Agents > D000975 - Antioxidants The trans-isomer of 4-coumaric acid. D000890 - Anti-Infective Agents Acquisition and generation of the data is financially supported in part by CREST/JST. CONFIDENCE standard compound; INTERNAL_ID 168 KEIO_ID C024 p-Coumaric acid is the abundant isomer of cinnamic acid which has antitumor and anti-mutagenic activities. p-Coumaric acid is the abundant isomer of cinnamic acid which has antitumor and anti-mutagenic activities. p-Hydroxycinnamic acid, a common dietary phenol, could inhibit platelet activity, with IC50s of 371 μM, 126 μM for thromboxane B2 production and lipopolysaccharide-induced prostaglandin E2 generation, respectively. p-Hydroxycinnamic acid, a common dietary phenol, could inhibit platelet activity, with IC50s of 371 μM, 126 μM for thromboxane B2 production and lipopolysaccharide-induced prostaglandin E2 generation, respectively. p-Coumaric acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=7400-08-0 (retrieved 2024-09-04) (CAS RN: 7400-08-0). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Quinic acid

C7H12O6 (192.0634)

Quinic acid, also known as quinate, belongs to the class of organic compounds known as quinic acids and derivatives. Quinic acids and derivatives are compounds containing a quinic acid moiety (or a derivative thereof), which is a cyclitol made up of a cyclohexane ring that bears four hydroxyl groups at positions 1,3, 4, and 5, as well as a carboxylic acid at position 1. Quinic acid is a sugar acid. It is also a cyclitol, or cyclic polyol. More specifically, quinic acid is a crystalline acid obtained from cinchona bark, coffee beans, tobacco leaves, carrot leaves, apples, peaches, pears, plums, vegetables, etc. Quinic acid can also be made synthetically by hydrolysis of chlorogenic acid. Quinic acid is implicated in the perceived acidity of coffee. (-)-quinic acid is the (-)-enantiomer of quinic acid. It is a conjugate acid of a (-)-quinate. It is an enantiomer of a (+)-quinic acid. Quinate is a metabolite found in or produced by Escherichia coli (strain K12, MG1655). Quinic acid is a natural product found in Gamblea innovans, Pterocaulon virgatum, and other organisms with data available. An acid which is found in cinchona bark and elsewhere in plants. (From Stedman, 26th ed) Quinic acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=36413-60-2 (retrieved 2024-07-01) (CAS RN: 36413-60-2). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). D-(-)-Quinic acid is a cyclohexanecarboxylic acid and is implicated in the perceived acidity of coffee. D-(-)-Quinic acid is a cyclohexanecarboxylic acid and is implicated in the perceived acidity of coffee.

Azelaic acid

C9H16O4 (188.1049)

Nonanedioic acid is an alpha,omega-dicarboxylic acid that is heptane substituted at positions 1 and 7 by carboxy groups. It has a role as an antibacterial agent, an antineoplastic agent, a dermatologic drug and a plant metabolite. It is a dicarboxylic fatty acid and an alpha,omega-dicarboxylic acid. It is a conjugate acid of an azelaate(2-) and an azelaate. Azelaic acid is a saturated dicarboxylic acid found naturally in wheat, rye, and barley. It is also produced by Malassezia furfur, also known as Pityrosporum ovale, which is a species of fungus that is normally found on human skin. Azelaic acid is effective against a number of skin conditions, such as mild to moderate acne, when applied topically in a cream formulation of 20\\\\\%. It works in part by stopping the growth of skin bacteria that cause acne, and by keeping skin pores clear. Azelaic acids antimicrobial action may be attributable to inhibition of microbial cellular protein synthesis. Azelaic acid is a metabolite found in or produced by Escherichia coli (strain K12, MG1655). The physiologic effect of azelaic acid is by means of Decreased Protein Synthesis, and Decreased Sebaceous Gland Activity. Azelaic Acid is a naturally occurring dicarboxylic acid produced by Malassezia furfur and found in whole grain cereals, rye, barley and animal products. Azelaic acid possesses antibacterial, keratolytic, comedolytic, and anti-oxidant activity. Azelaic acid is bactericidal against Proprionibacterium acnes and Staphylococcus epidermidis due to its inhibitory effect on the synthesis of microbial cellular proteins. Azelaic acid exerts its keratolytic and comedolytic effects by reducing the thickness of the stratum corneum and decreasing the number of keratohyalin granules by reducing the amount and distribution of filaggrin in epidermal layers. Azelaic acid also possesses a direct anti-inflammatory effect due to its scavenger activity of free oxygen radical. This drug is used topically to reduce inflammation associated with acne and rosacea. Azelaic acid is a saturated dicarboxylic acid found naturally in wheat, rye, and barley. It is a natural substance that is produced by Malassezia furfur (also known as Pityrosporum ovale), a yeast that lives on normal skin. It is effective against a number of skin conditions, such as mild to moderate acne, when applied topically in a cream formulation of 20\\\\\%. It works in part by stopping the growth of skin bacteria that cause acne, and by keeping skin pores clear. Azelaic acids antimicrobial action may be attributable to inhibition of microbial cellular protein synthesis. See also: Azelaic acid; niacinamide (component of) ... View More ... Azelaic acid (AZA) is a naturally occurring saturated nine-carbon dicarboxylic acid (COOH (CH2)7-COOH). It possesses a variety of biological actions both in vitro and in vivo. Interest in the biological activity of AZA arose originally out of studies of skin surface lipids and the pathogenesis of hypochromia in pityriasis versicolor infection. Later, it was shown that Pityrosporum can oxidize unsaturated fatty acids to C8-C12 dicarboxylic acids that are cornpetitive inhibitors of tyrosinase in vitro. Azelaic acid was chosen for further investigation and development of a new topical drug for treating hyperpigmentary disorders for the following reasons: it possesses a middle-range of antityrosinase activity, is inexpensive, and more soluble to be incorporated into a base cream than other dicarboxylic acids. Azelaic acid is another option for the topical treatment of mild to moderate inflammatory acne vulgaris. It offers effectiveness similar to that of other agents without the systemic side effects of oral antibiotics or the allergic sensitization of topical benzoyl peroxide and with less irritation than tretinoin. Azelaic acid is less expensive than certain other prescription acne preparations, but it is much more expensive than nonprescription benzoyl peroxide preparations. Whether it is safe and effective when used in combination with other agents is not known. (PMID: 7737781, 8961845). An alpha,omega-dicarboxylic acid that is heptane substituted at positions 1 and 7 by carboxy groups. Plants biology In plants, azelaic acid serves as a "distress flare" involved in defense responses after infection.[7] It serves as a signal that induces the accumulation of salicylic acid, an important component of a plant's defensive response.[8] Human biology The mechanism of action in humans is thought to be through the inhibition of hyperactive protease activity that converts cathelicidin into the antimicrobial skin peptide LL-37.[9] Polymers and related materials Esters of this dicarboxylic acid find applications in lubrication and plasticizers. In lubricant industries it is used as a thickening agent in lithium complex grease. With hexamethylenediamine, azelaic acid forms Nylon-6,9, which finds specialized uses as a plastic.[4] Medical Azelaic acid is used to treat mild to moderate acne, both comedonal acne and inflammatory acne.[10][11] It belongs to a class of medication called dicarboxylic acids. It works by killing acne bacteria that infect skin pores. It also decreases the production of keratin, which is a natural substance that promotes the growth[clarification needed] of acne bacteria.[12] Azelaic acid is also used as a topical gel treatment for rosacea, due to its ability to reduce inflammation.[11] It clears the bumps and swelling caused by rosacea. In topical pharmaceutical preparations and scientific research AzA is typically used in concentrations between 15\\\% and 20\\\% but some research demonstrates that in certain vehicle formulations the pharmaceutical effects of 10\\\% Azelaic acid has the potential to be fully comparable to that of some 20\\\% creams.[13] Acne treatment Azelaic acid is effective for mild to moderate acne when applied topically at a 15\\\%-20\\\% concentration.[14][15][16][17] In patients with moderate acne, twice daily application over 3 months of 20\\\% AzA significantly reduced the number of comedones, papules, and pustules;[18][19] at this strength, it’s considered to be as effective as benzoyl peroxide 5\\\%, tretinoin 0.05\\\%, erythromycin 2\\\%, and oral tetracycline at 500 mg-1000 mg.[20][21] In a comparative review of effects of topical AzA, Salicylic acid, Nicotinamide, Sulfur, Zinc, and alpha-hydroxy acid, AzA had more high-quality evidence of effectiveness than the rest.[22] Results can be expected after 4 weeks of twice-daily treatment. The effectiveness of long term use is unclear, but it’s been recommended that AzA be used for at least 6 months continuously for maintenance.[20] Whitening agent Azelaic acid is used for treatment of skin pigmentation, including melasma and postinflammatory hyperpigmentation, particularly in those with darker skin types. It has been recommended as an alternative to hydroquinone.[23] As a tyrosinase inhibitor,[5] azelaic acid reduces synthesis of melanin.[24] According to one report in 1988, azelaic acid in combination with zinc sulfate in vitro was found to be a potent (90\\\% inhibition) 5α-reductase inhibitor, similar to the hair loss drugs finasteride and dutasteride.[25] In vitro research during mid-1980s evaluating azelaic acid's depigmenting (whitening) capability concluded it is effective (cytotoxic to melanocytes) at only high concentrations.[26] A 1996 review claimed 20\\\% AzA is as potent as 4\\\% hydroquinone after a period of application of three months without the latter's adverse effects and even more effective if applied along with tretinoin for the same period of time.[27][19] Azelaic acid is a nine-carbon dicarboxylic acid. Azelaic acid has antimicrobial activity against Propionibacterium acnes and Staphylococcus epidermidis through inhibition of microbial cellular prorein synthesis. Azelaic acid has hypopigmentation action resulting from its ability to scavenge free radicals[1][2]. Azelaic acid is a nine-carbon dicarboxylic acid. Azelaic acid has antimicrobial activity against Propionibacterium acnes and Staphylococcus epidermidis through inhibition of microbial cellular prorein synthesis. Azelaic acid has hypopigmentation action resulting from its ability to scavenge free radicals[1][2].

L-Threonine

C4H9NO3 (119.0582)

L-threonine is an optically active form of threonine having L-configuration. It has a role as a nutraceutical, a micronutrient, a Saccharomyces cerevisiae metabolite, a plant metabolite, an Escherichia coli metabolite, a human metabolite, an algal metabolite and a mouse metabolite. It is an aspartate family amino acid, a proteinogenic amino acid, a threonine and a L-alpha-amino acid. It is a conjugate base of a L-threoninium. It is a conjugate acid of a L-threoninate. It is an enantiomer of a D-threonine. It is a tautomer of a L-threonine zwitterion. An essential amino acid occurring naturally in the L-form, which is the active form. It is found in eggs, milk, gelatin, and other proteins. L-Threonine is a metabolite found in or produced by Escherichia coli (strain K12, MG1655). Threonine is an essential amino acid in humans (provided by food), Threonine is an important residue of many proteins, such as tooth enamel, collagen, and elastin. An important amino acid for the nervous system, threonine also plays an important role in porphyrin and fat metabolism and prevents fat buildup in the liver. Useful with intestinal disorders and indigestion, threonine has also been used to alleviate anxiety and mild depression. (NCI04) Threonine is an essential amino acid in humans. It is abundant in human plasma, particularly in newborns. Severe deficiency of threonine causes neurological dysfunction and lameness in experimental animals. Threonine is an immunostimulant which promotes the growth of thymus gland. It also can probably promote cell immune defense function. This amino acid has been useful in the treatment of genetic spasticity disorders and multiple sclerosis at a dose of 1 gram daily. It is highly concentrated in meat products, cottage cheese and wheat germ. The threonine content of most of the infant formulas currently on the market is approximately 20\\\\\\% higher than the threonine concentration in human milk. Due to this high threonine content the plasma threonine concentrations are up to twice as high in premature infants fed these formulas than in infants fed human milk. The whey proteins which are used for infant formulas are sweet whey proteins. Sweet whey results from cheese production. Threonine catabolism in mammals appears to be due primarily (70-80\\\\\\%) to the activity of threonine dehydrogenase (EC 1.1.1.103) that oxidizes threonine to 2-amino-3-oxobutyrate, which forms glycine and acetyl CoA, whereas threonine dehydratase (EC 4.2.1.16) that catabolizes threonine into 2-oxobutyrate and ammonia, is significantly less active. Increasing the threonine plasma concentrations leads to accumulation of threonine and glycine in the brain. Such accumulation affects the neurotransmitter balance which may have consequences for the brain development during early postnatal life. Thus, excessive threonine intake during infant feeding should be avoided. (A3450). An essential amino acid occurring naturally in the L-form, which is the active form. It is found in eggs, milk, gelatin, and other proteins. See also: Amlisimod (monomer of) ... View More ... Threonine (Thr) or L-threonine is an alpha-amino acid. These are amino acids in which the amino group is attached to the carbon atom immediately adjacent to the carboxylate group (alpha carbon). Amino acids are organic compounds that contain amino (–NH2) and carboxyl (–COOH) functional groups, along with a side chain (R group) specific to each amino acid. L-threonine is one of 20 proteinogenic amino acids, i.e., the amino acids used in the biosynthesis of proteins. Threonine is found in all organisms ranging from bacteria to plants to animals. It is classified as a polar, uncharged (at physiological pH), aliphatic amino acid. Threonine is sometimes considered as a branched chain amino acid. Threonine was actually the last of the 20 amino acids to be discovered (in 1938). It was named threonine because it was similar in structure to threonic acid, a four-carbon monosaccharide. Threonine is an essential amino acid in humans, meaning the body cannot synthesize it and that it must be obtained from the diet. Foods high in threonine include cottage cheese, poultry, fish, meat, lentils, black turtle bean and sesame seeds. Adult humans require about 20 mg/kg body weight/day. In plants and microorganisms, threonine is synthesized from aspartic acid via alpha-aspartyl-semialdehyde and homoserine. In proteins, the threonine residue is susceptible to numerous posttranslational modifications. The hydroxyl side-chain can undergo O-linked glycosylation and phosphorylation through the action of a threonine kinase. Threonine is abundant in human plasma, particularly in newborns. Severe deficiency of threonine causes neurological dysfunction and lameness in experimental animals. Threonine is an immunostimulant which promotes the growth of thymus gland. It also can probably promote cell immune defense function. The threonine content of most of the infant formulas currently on the market is approximately 20\\\\\\% higher than the threonine concentration in human milk. Due to this high threonine content the plasma threonine concentrations are up to twice as high in premature infants fed these formulas than in infants fed human milk. The whey proteins which are used for infant formulas are sweet whey proteins. Sweet whey results from cheese production. Increasing the threonine plasma concentrations leads to accumulation of threonine and glycine in the brain. Such accumulation affects the neurotransmitter balance which may have consequences for the brain development during early postnatal life. Thus, excessive threonine intake during infant feeding should be avoided. (PMID 9853925). Threonine is metabolized in at least two ways. In many animals it is converted to pyruvate via threonine dehydrogenase. An intermediate in this pathway can undergo thiolysis with CoA to produce acetyl-CoA and glycine. In humans the gene for threonine dehydrogenase is an inactive pseudogene, so threonine is converted to alpha-ketobutyrate. From wide variety of protein hydrolysates. Dietary supplement, nutrient L-Threonine. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=72-19-5 (retrieved 2024-07-01) (CAS RN: 72-19-5). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). DL-Threonine, an essential amino acid, has the potential to treat hypostatic leg ulceration[1]. L-Threonine is a natural amino acid, can be produced by microbial fermentation, and is used in food, medicine, or feed[1]. L-Threonine is a natural amino acid, can be produced by microbial fermentation, and is used in food, medicine, or feed[1].

Caffeic acid

C9H8O4 (180.0423)

Caffeic acid is a hydroxycinnamic acid that is cinnamic acid in which the phenyl ring is substituted by hydroxy groups at positions 3 and 4. It exists in cis and trans forms; the latter is the more common. It has a role as a plant metabolite, an EC 1.13.11.33 (arachidonate 15-lipoxygenase) inhibitor, an EC 2.5.1.18 (glutathione transferase) inhibitor, an EC 1.13.11.34 (arachidonate 5-lipoxygenase) inhibitor, an antioxidant and an EC 3.5.1.98 (histone deacetylase) inhibitor. It is a hydroxycinnamic acid and a member of catechols. Caffeic Acid is a natural product found in Pavetta indica, Eupatorium cannabinum, and other organisms with data available. Caffeic Acid is an orally bioavailable, hydroxycinnamic acid derivative and polyphenol, with potential anti-oxidant, anti-inflammatory, and antineoplastic activities. Upon administration, caffeic acid acts as an antioxidant and prevents oxidative stress, thereby preventing DNA damage induced by free radicals. Caffeic acid targets and inhibits the histone demethylase (HDM) oncoprotein gene amplified in squamous cell carcinoma 1 (GASC1; JMJD2C; KDM4C) and inhibits cancer cell proliferation. GASC1, a member of the KDM4 subgroup of Jumonji (Jmj) domain-containing proteins, demethylates trimethylated lysine 9 and lysine 36 on histone H3 (H3K9 and H3K36), and plays a key role in tumor cell development. Caffeic acid is a metabolite found in or produced by Saccharomyces cerevisiae. See also: Black Cohosh (part of); Arctium lappa Root (part of); Comfrey Leaf (part of) ... View More ... 3,4-Dihydroxy-trans-cinnamate, also known as trans-Caffeate, is a polyphenol present in normal human urine positively correlated to coffee consumption and influenced by the dietary intake of diverse types of food (PMID:16870009). trans-Caffeic acid is found in many foods, some of which are flaxseed, cereal and cereal products, common grape, fruits, and common sage. It is also found in wine and coffee in free and conjugated forms. Caffeic acid (CAS: 331-39-5) is a polyphenol present in normal human urine positively correlated to coffee consumption and influenced by the dietary intake of diverse types of food (PMID:16870009). Caffeic acid has been found to be a microbial metabolite of Escherichia (PMID: 28396925). Caffeic acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=331-39-5 (retrieved 2024-06-28) (CAS RN: 331-39-5). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). Caffeic acid is an inhibitor of both TRPV1 ion channel and 5-Lipoxygenase (5-LO). Caffeic acid is an inhibitor of both TRPV1 ion channel and 5-Lipoxygenase (5-LO). Caffeic acid is an inhibitor of both TRPV1 ion channel and 5-Lipoxygenase (5-LO).

L-Proline

C5H9NO2 (115.0633)

Proline (Pro), also known as L-proline is an alpha-amino acid. These are amino acids in which the amino group is attached to the carbon atom immediately adjacent to the carboxylate group (alpha carbon). Amino acids are organic compounds that contain amino (–NH2) and carboxyl (–COOH) functional groups, along with a side chain (R group) specific to each amino acid. Proline is one of 20 proteinogenic amino acids, i.e., the amino acids used in the biosynthesis of proteins. Proline is found in all organisms ranging from bacteria to plants to animals. It is classified as an aliphatic, non-polar amino acid. Proline is sometimes called an imino acid, although the IUPAC definition of an imine requires a carbon-nitrogen double bond. Proline is a non-essential amino acid that is synthesized from glutamic acid. It is an essential component of collagen and is important for proper functioning of joints and tendons. Proline is derived from the amino acid L-glutamate in which glutamate-5-semialdehyde is first formed by glutamate 5-kinase and glutamate-5-semialdehyde dehydrogenase (which requires NADH or NADPH). This semialdehyde can then either spontaneously cyclize to form 1-pyrroline-5-carboxylic acid, which is reduced to proline by pyrroline-5-carboxylate reductase, or turned into ornithine by ornithine aminotransferase, followed by cyclization by ornithine cyclodeaminase to form proline. L-Proline has been found to act as a weak agonist of the glycine receptor and of both NMDA and non-NMDA ionotropic glutamate receptors. It has been proposed to be a potential endogenous excitotoxin/neurotoxin. Studies in rats have shown that when injected into the brain, proline non-selectively destroys pyramidal and granule cells (PMID: 3409032 ). Therefore, under certain conditions proline can act as a neurotoxin and a metabotoxin. A neurotoxin causes damage to nerve cells and nerve tissues. A metabotoxin is an endogenously produced metabolite that causes adverse health effects at chronically high levels. Chronically high levels of proline are associated with at least five inborn errors of metabolism, including hyperprolinemia type I, hyperprolinemia type II, iminoglycinuria, prolinemia type II, and pyruvate carboxylase deficiency. People with hyperprolinemia type I often do not show any symptoms even though they have proline levels in their blood between 3 and 10 times the normal level. Some individuals with hyperprolinemia type I exhibit seizures, intellectual disability, or other neurological or psychiatric problems. Hyperprolinemia type II results in proline levels in the blood between 10 and 15 times higher than normal, and high levels of a related compound called pyrroline-5-carboxylate. Hyperprolinemia type II has signs and symptoms that vary in severity and is more likely than type I to involve seizures or intellectual disability. L-proline is pyrrolidine in which the pro-S hydrogen at position 2 is substituted by a carboxylic acid group. L-Proline is the only one of the twenty DNA-encoded amino acids which has a secondary amino group alpha to the carboxyl group. It is an essential component of collagen and is important for proper functioning of joints and tendons. It also helps maintain and strengthen heart muscles. It has a role as a micronutrient, a nutraceutical, an algal metabolite, a Saccharomyces cerevisiae metabolite, an Escherichia coli metabolite, a mouse metabolite and a member of compatible osmolytes. It is a glutamine family amino acid, a proteinogenic amino acid, a proline and a L-alpha-amino acid. It is a conjugate base of a L-prolinium. It is a conjugate acid of a L-prolinate. It is an enantiomer of a D-proline. It is a tautomer of a L-proline zwitterion. Proline is one of the twenty amino acids used in living organisms as the building blocks of proteins. Proline is sometimes called an imino acid, although the IUPAC definition of an imine requires a carbon-nitrogen double bond. Proline is a non-essential amino acid that is synthesized from glutamic acid. It is an essential component of collagen and is important for proper functioning of joints and tendons. L-Proline is a metabolite found in or produced by Escherichia coli (strain K12, MG1655). Proline is a cyclic, nonessential amino acid (actually, an imino acid) in humans (synthesized from glutamic acid and other amino acids), Proline is a constituent of many proteins. Found in high concentrations in collagen, proline constitutes almost a third of the residues. Collagen is the main supportive protein of skin, tendons, bones, and connective tissue and promotes their health and healing. (NCI04) L-Proline is one of the twenty amino acids used in living organisms as the building blocks of proteins. Proline is sometimes called an imino acid, although the IUPAC definition of an imine requires a carbon-nitrogen double bond. Proline is a non-essential amino acid that is synthesized from glutamic acid. It is an essential component of collagen and is important for proper functioning of joints and tendons. A non-essential amino acid that is synthesized from GLUTAMIC ACID. It is an essential component of COLLAGEN and is important for proper functioning of joints and tendons. Pyrrolidine in which the pro-S hydrogen at position 2 is substituted by a carboxylic acid group. L-Proline is the only one of the twenty DNA-encoded amino acids which has a secondary amino group alpha to the carboxyl group. It is an essential component of collagen and is important for proper functioning of joints and tendons. It also helps maintain and strengthen heart muscles. Flavouring ingredient; dietary supplement L-Proline is one of the twenty amino acids used in living organisms as the building blocks of proteins. L-Proline is one of the twenty amino acids used in living organisms as the building blocks of proteins.

Kaempferol

C15H10O6 (286.0477)

Kaempferol is a tetrahydroxyflavone in which the four hydroxy groups are located at positions 3, 5, 7 and 4. Acting as an antioxidant by reducing oxidative stress, it is currently under consideration as a possible cancer treatment. It has a role as an antibacterial agent, a plant metabolite, a human xenobiotic metabolite, a human urinary metabolite, a human blood serum metabolite and a geroprotector. It is a member of flavonols, a 7-hydroxyflavonol and a tetrahydroxyflavone. It is a conjugate acid of a kaempferol oxoanion. Kaempferol is a natural product found in Lotus ucrainicus, Visnea mocanera, and other organisms with data available. Kaempferol is a natural flavonoid which has been isolated from Delphinium, Witch-hazel, grapefruit, and other plant sources. Kaempferol is a yellow crystalline solid with a melting point of 276-278 degree centigrade. It is slightly soluble in water, and well soluble in hot ethanol and diethyl ether. Kaempferol is a metabolite found in or produced by Saccharomyces cerevisiae. See also: Cannabis sativa subsp. indica top (part of); Tussilago farfara flower (part of). Kaempferol, also known as rhamnolutein or c.i. 75640, belongs to the class of organic compounds known as flavonols. Flavonols are compounds that contain a flavone (2-phenyl-1-benzopyran-4-one) backbone carrying a hydroxyl group at the 3-position. Thus, kaempferol is considered to be a flavonoid molecule. A tetrahydroxyflavone in which the four hydroxy groups are located at positions 3, 5, 7 and 4. Kaempferol is a very hydrophobic molecule, practically insoluble in water, and relatively neutral. Kaempferol exists in all eukaryotes, ranging from yeast to humans. Kaempferol is a bitter tasting compound. Kaempferol is found, on average, in the highest concentration within a few different foods, such as saffrons, capers, and cumins and in a lower concentration in lovages, endives, and cloves. Kaempferol has also been detected, but not quantified, in several different foods, such as shallots, pine nuts, feijoa, kombus, and chicory leaves. This could make kaempferol a potential biomarker for the consumption of these foods. Kaempferol is a potentially toxic compound. Very widespread in the plant world, e.g. in Brassicaceae, Apocynaceae, Dilleniaceae, Ranunculaceae, Leguminosae, etc. Found especies in broccoli, capers, chives, kale, garden cress, fennel, lovage, dill weed and tarragon [CCD] A tetrahydroxyflavone in which the four hydroxy groups are located at positions 3, 5, 7 and 4. Acting as an antioxidant by reducing oxidative stress, it is currently under consideration as a possible cancer treatment. CONFIDENCE standard compound; INTERNAL_ID 898; DATASET 20200303_ENTACT_RP_MIX500; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3906; ORIGINAL_PRECURSOR_SCAN_NO 3905 CONFIDENCE standard compound; INTERNAL_ID 898; DATASET 20200303_ENTACT_RP_MIX500; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3916; ORIGINAL_PRECURSOR_SCAN_NO 3915 CONFIDENCE standard compound; INTERNAL_ID 898; DATASET 20200303_ENTACT_RP_MIX500; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3928; ORIGINAL_PRECURSOR_SCAN_NO 3927 CONFIDENCE standard compound; INTERNAL_ID 898; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4291; ORIGINAL_PRECURSOR_SCAN_NO 4290 CONFIDENCE standard compound; INTERNAL_ID 898; DATASET 20200303_ENTACT_RP_MIX500; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3918; ORIGINAL_PRECURSOR_SCAN_NO 3917 CONFIDENCE standard compound; INTERNAL_ID 898; DATASET 20200303_ENTACT_RP_MIX500; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3915; ORIGINAL_PRECURSOR_SCAN_NO 3914 Acquisition and generation of the data is financially supported in part by CREST/JST. INTERNAL_ID 2358; CONFIDENCE Reference Standard (Level 1) CONFIDENCE Reference Standard (Level 1); INTERNAL_ID 2358 CONFIDENCE standard compound; INTERNAL_ID 47 CONFIDENCE standard compound; ML_ID 45 Kaempferol (Kempferol), a flavonoid found in many edible plants, inhibits estrogen receptor α expression in breast cancer cells and induces apoptosis in glioblastoma cells and lung cancer cells by activation of MEK-MAPK. Kaempferol can be uesd for the research of breast cancer[1][2][3][4]. Kaempferol (Kempferol), a flavonoid found in many edible plants, inhibits estrogen receptor α expression in breast cancer cells and induces apoptosis in glioblastoma cells and lung cancer cells by activation of MEK-MAPK. Kaempferol can be uesd for the research of breast cancer[1][2][3][4].

Raffinose

C18H32O16 (504.169)

Raffinose is a complex carbohydrate. It is a trisaccharide composed of galactose, fructose, and glucose. It can be found in beans, cabbage, brussels sprouts, broccoli, asparagus, other vegetables, and whole grains. Raffinose is hydrolyzed to D-galactose and sucrose by D-galactosidase (D-GAL). D-GAL also hydrolyzes other D-galactosides such as stachyose, verbascose, and galactinol [1-O-(D-galactosyl)-myoinositol], if present. The enzyme does not cleave linked galactose, as in lactose. Raffinose is also known as melitose and may be thought of as galactose and sucrose connected via an alpha(1->6) glycosidic linkage. Thus, raffinose can be broken down into galactose and sucrose via the enzyme alpha-galactosidase. Human intestines do not contain this enzyme. Raffinose is a trisaccharide occurring in Australian manna (from Eucalyptus spp, Myrtaceae) and in cottonseed meal. Raffinose is a trisaccharide composed of alpha-D-galactopyranose, alpha-D-glucopyranose and beta-D-fructofuranose joined in sequence by 1->6 and 1<->2 glycosidic linkages, respectively. It has a role as a plant metabolite, a Saccharomyces cerevisiae metabolite and a mouse metabolite. It is a raffinose family oligosaccharide and a trisaccharide. Raffinose is a natural product found in Teucrium polium, Populus tremula, and other organisms with data available. A trisaccharide occurring in Australian manna (from Eucalyptus spp, Myrtaceae) and in cottonseed meal. See also: Oligosaccharide (related). A trisaccharide composed of alpha-D-galactopyranose, alpha-D-glucopyranose and beta-D-fructofuranose joined in sequence by 1->6 and 1<->2 glycosidic linkages, respectively. COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS Acquisition and generation of the data is financially supported in part by CREST/JST. CONFIDENCE standard compound; INTERNAL_ID 230 Raffinose (Melitose), a non-digestible short-chain?oligosaccharide, is a trisaccharide composed of galactose, glucose, and fructose and can be found in many plants. Raffinose (Melitose) can be hydrolyzed to D-galactose and sucrose by the enzyme α-galactosidase (α-GAL)[1]. Raffinose (Melitose), a non-digestible short-chain?oligosaccharide, is a trisaccharide composed of galactose, glucose, and fructose and can be found in many plants. Raffinose (Melitose) can be hydrolyzed to D-galactose and sucrose by the enzyme α-galactosidase (α-GAL)[1].

Kaempferitrin

C27H30O14 (578.1635)

Kaempferol 3,7-di-O-alpha-L-rhamnoside is a glycosyloxyflavone that is kaempferol attached to alpha-L-rhamnopyranosyl residues at positions 3 and 7 respectively via glycosidic linkages. It has been isolated from the aerial parts of Vicia faba and Lotus edulis. It has a role as a bone density conservation agent, a hypoglycemic agent, an immunomodulator, an anti-inflammatory agent, an antineoplastic agent, a plant metabolite, an apoptosis inducer and an antidepressant. It is an alpha-L-rhamnoside, a monosaccharide derivative, a dihydroxyflavone, a glycosyloxyflavone and a polyphenol. It is functionally related to a kaempferol. Kaempferitrin is a natural product found in Ficus septica, Cleome amblyocarpa, and other organisms with data available. See also: Selenicereus grandiflorus stem (part of). A glycosyloxyflavone that is kaempferol attached to alpha-L-rhamnopyranosyl residues at positions 3 and 7 respectively via glycosidic linkages. It has been isolated from the aerial parts of Vicia faba and Lotus edulis. Kaempferitrin is found in linden. Kaempferitrin is a chemical compound. It can be isolated from the leaves of Hedyotis verticillata. Kaempferitrin is a natural flavonoid, possesses antinociceptive, anti-inflammatory, anti-diabetic, antitumoral and chemopreventive effects, and activates insulin signaling pathway. Kaempferitrin is a natural flavonoid, possesses antinociceptive, anti-inflammatory, anti-diabetic, antitumoral and chemopreventive effects, and activates insulin signaling pathway.

Citric acid

C6H8O7 (192.027)

Citric acid (citrate) is a tricarboxylic acid, an organic acid with three carboxylate groups. Citrate is an intermediate in the TCA cycle (also known as the Tricarboxylic Acid cycle, the Citric Acid cycle or Krebs cycle). The TCA cycle is a central metabolic pathway for all animals, plants, and bacteria. As a result, citrate is found in all living organisms, from bacteria to plants to animals. In the TCA cycle, the enzyme citrate synthase catalyzes the condensation of oxaloacetate with acetyl CoA to form citrate. Citrate then acts as the substrate for the enzyme known as aconitase and is then converted into aconitic acid. The TCA cycle ends with regeneration of oxaloacetate. This series of chemical reactions in the TCA cycle is the source of two-thirds of the food-derived energy in higher organisms. Citrate can be transported out of the mitochondria and into the cytoplasm, then broken down into acetyl-CoA for fatty acid synthesis, and into oxaloacetate. Citrate is a positive modulator of this conversion, and allosterically regulates the enzyme acetyl-CoA carboxylase, which is the regulating enzyme in the conversion of acetyl-CoA into malonyl-CoA (the commitment step in fatty acid synthesis). In short, citrate is transported into the cytoplasm, converted into acetyl CoA, which is then converted into malonyl CoA by acetyl CoA carboxylase, which is allosterically modulated by citrate. In mammals and other vertebrates, Citrate is a vital component of bone, helping to regulate the size of apatite crystals (PMID: 21127269). Citric acid is found in citrus fruits, most concentrated in lemons and limes, where it can comprise as much as 8\\\\\% of the dry weight of the fruit. Citric acid is a natural preservative and is also used to add an acidic (sour) taste to foods and carbonated drinks. Because it is one of the stronger edible acids, the dominant use of citric acid is as a flavoring and preservative in food and beverages, especially soft drinks and candies. Citric acid is an excellent chelating agent, binding metals by making them soluble. It is used to remove and discourage the buildup of limescale from boilers and evaporators. It can be used to treat water, which makes it useful in improving the effectiveness of soaps and laundry detergents. The salts of citric acid (citrates) can be used as anticoagulants due to their calcium chelating ability. Intolerance to citric acid in the diet is known to exist. Little information is available as the condition appears to be rare, but like other types of food intolerance it is often described as a "pseudo-allergic" reaction. Citric acid appears as colorless, odorless crystals with an acid taste. Denser than water. (USCG, 1999) Citric acid is a tricarboxylic acid that is propane-1,2,3-tricarboxylic acid bearing a hydroxy substituent at position 2. It is an important metabolite in the pathway of all aerobic organisms. It has a role as a food acidity regulator, a chelator, an antimicrobial agent and a fundamental metabolite. It is a conjugate acid of a citrate(1-) and a citrate anion. A key intermediate in metabolism. It is an acid compound found in citrus fruits. The salts of citric acid (citrates) can be used as anticoagulants due to their calcium-chelating ability. Citric acid is one of the active ingredients in Phexxi, a non-hormonal contraceptive agent that was approved by the FDA on May 2020. It is also used in combination with magnesium oxide to form magnesium citrate, an osmotic laxative. Citric acid is a metabolite found in or produced by Escherichia coli (strain K12, MG1655). Anhydrous citric acid is a Calculi Dissolution Agent and Anti-coagulant. The mechanism of action of anhydrous citric acid is as an Acidifying Activity and Calcium Chelating Activity. The physiologic effect of anhydrous citric acid is by means of Decreased Coagulation Factor Activity. Anhydrous Citric Acid is a tricarboxylic acid found in citrus fruits. Citric acid is used as an excipient in pharmaceutical preparations due to its antioxidant properties. It maintains stability of active ingredients and is used as a preservative. It is also used as an acidulant to control pH and acts as an anticoagulant by chelating calcium in blood. A key intermediate in metabolism. It is an acid compound found in citrus fruits. The salts of citric acid (citrates) can be used as anticoagulants due to their calcium chelating ability. See also: Citric Acid Monohydrate (related). Citrate, also known as anhydrous citric acid or 2-hydroxy-1,2,3-propanetricarboxylic acid, belongs to tricarboxylic acids and derivatives class of compounds. Those are carboxylic acids containing exactly three carboxyl groups. Citrate is soluble (in water) and a weakly acidic compound (based on its pKa). Citrate can be found in a number of food items such as ucuhuba, loquat, bayberry, and longan, which makes citrate a potential biomarker for the consumption of these food products. Citrate can be found primarily in most biofluids, including saliva, sweat, feces, and blood, as well as throughout all human tissues. Citrate exists in all living species, ranging from bacteria to humans. In humans, citrate is involved in several metabolic pathways, some of which include the oncogenic action of succinate, the oncogenic action of fumarate, the oncogenic action of 2-hydroxyglutarate, and congenital lactic acidosis. Citrate is also involved in several metabolic disorders, some of which include 2-ketoglutarate dehydrogenase complex deficiency, pyruvate dehydrogenase deficiency (E2), fumarase deficiency, and glutaminolysis and cancer. Moreover, citrate is found to be associated with lung Cancer, tyrosinemia I, maple syrup urine disease, and propionic acidemia. A citrate is a derivative of citric acid; that is, the salts, esters, and the polyatomic anion found in solution. An example of the former, a salt is trisodium citrate; an ester is triethyl citrate. When part of a salt, the formula of the citrate ion is written as C6H5O73− or C3H5O(COO)33− . A tricarboxylic acid that is propane-1,2,3-tricarboxylic acid bearing a hydroxy substituent at position 2. It is an important metabolite in the pathway of all aerobic organisms. Citric acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=77-92-9 (retrieved 2024-07-01) (CAS RN: 77-92-9). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). Citric acid is a natural preservative and food tartness enhancer. Citric acid induces apoptosis and cell cycle arrest at G2/M phase and S phase in HaCaT cells. Citric acid cause oxidative damage of the liver by means of the decrease of antioxidative enzyme activities. Citric acid causes renal toxicity in mice[1][2][3]. Citric acid is a natural preservative and food tartness enhancer. Citric acid induces apoptosis and cell cycle arrest at G2/M phase and S phase in HaCaT cells. Citric acid cause oxidative damage of the liver by means of the decrease of antioxidative enzyme activities. Citric acid causes renal toxicity in mice[1][2][3].

Ferulic acid

C10H10O4 (194.0579)

trans-Ferulic acid is a highly abundant phenolic phytochemical which is present in plant cell walls. Ferulic acid is a phenolic acid that can be absorbed by the small intestine and excreted through the urine. It is one of the most abundant phenolic acids in plants, varying from 5 g/kg in wheat bran to 9 g/kg in sugar-beet pulp and 50 g/kg in corn kernel. It occurs primarily in seeds and leaves both in its free form (albeit rarely) and covalently linked to lignin and other biopolymers. It is usually found as ester cross-links with polysaccharides in the cell wall, such as arabinoxylans in grasses, pectin in spinach and sugar beet, and xyloglucans in bamboo. It also can cross-link with proteins. Due to its phenolic nucleus and an extended side chain conjugation (carbohydrates and proteins), it readily forms a resonance-stabilized phenoxy radical which accounts for its potent antioxidant potential. Food supplementation with curcumin and ferulic acid is considered a nutritional approach to reducing oxidative damage and amyloid pathology in Alzheimer disease (PMID:17127365, 1398220, 15453708, 9878519). Ferulic acid can be found in Pseudomonas and Saccharomyces (PMID:8395165). Ferulic acid is a ferulic acid consisting of trans-cinnamic acid bearing methoxy and hydroxy substituents at positions 3 and 4 respectively on the phenyl ring. It has a role as an antioxidant, a MALDI matrix material, a plant metabolite, an anti-inflammatory agent, an apoptosis inhibitor and a cardioprotective agent. It is a conjugate acid of a ferulate. Ferulic acid is a natural product found in Haplophyllum griffithianum, Visnea mocanera, and other organisms with data available. Ferulic acid is a metabolite found in or produced by Saccharomyces cerevisiae. See also: Angelica sinensis root (part of). Widely distributed in plants, first isolated from Ferula foetida (asafoetida). Antioxidant used to inhibit oxidn. of fats, pastry products, etc. Antifungal agent used to prevent fruit spoilage. trans-Ferulic acid is found in many foods, some of which are deerberry, peach, shea tree, and common bean. A ferulic acid consisting of trans-cinnamic acid bearing methoxy and hydroxy substituents at positions 3 and 4 respectively on the phenyl ring. D018373 - Peripheral Nervous System Agents > D018689 - Sensory System Agents D005765 - Gastrointestinal Agents > D002756 - Cholagogues and Choleretics D002317 - Cardiovascular Agents > D000959 - Antihypertensive Agents D019995 - Laboratory Chemicals > D007202 - Indicators and Reagents D002491 - Central Nervous System Agents > D000700 - Analgesics D000975 - Antioxidants > D016166 - Free Radical Scavengers D006401 - Hematologic Agents > D000925 - Anticoagulants D020011 - Protective Agents > D000975 - Antioxidants D000893 - Anti-Inflammatory Agents D018501 - Antirheumatic Agents Acquisition and generation of the data is financially supported in part by CREST/JST. KEIO_ID H074 (E)-Ferulic acid is a isomer of Ferulic acid which is an aromatic compound, abundant in plant cell walls. (E)-Ferulic acid causes the phosphorylation of β-catenin, resulting in proteasomal degradation of β-catenin and increases the expression of pro-apoptotic factor Bax and decreases the expression of pro-survival factor survivin. (E)-Ferulic acid shows a potent ability to remove reactive oxygen species (ROS) and inhibits lipid peroxidation. (E)-Ferulic acid exerts both anti-proliferation and anti-migration effects in the human lung cancer cell line H1299[1]. (E)-Ferulic acid is a isomer of Ferulic acid which is an aromatic compound, abundant in plant cell walls. (E)-Ferulic acid causes the phosphorylation of β-catenin, resulting in proteasomal degradation of β-catenin and increases the expression of pro-apoptotic factor Bax and decreases the expression of pro-survival factor survivin. (E)-Ferulic acid shows a potent ability to remove reactive oxygen species (ROS) and inhibits lipid peroxidation. (E)-Ferulic acid exerts both anti-proliferation and anti-migration effects in the human lung cancer cell line H1299[1]. Ferulic acid is a novel fibroblast growth factor receptor 1 (FGFR1) inhibitor with IC50s of 3.78 and 12.5 μM for FGFR1 and FGFR2, respectively. Ferulic acid is a novel fibroblast growth factor receptor 1 (FGFR1) inhibitor with IC50s of 3.78 and 12.5 μM for FGFR1 and FGFR2, respectively.

Fumaric acid

C4H4O4 (116.011)

Fumaric acid appears as a colorless crystalline solid. The primary hazard is the threat to the environment. Immediate steps should be taken to limit spread to the environment. Combustible, though may be difficult to ignite. Used to make paints and plastics, in food processing and preservation, and for other uses. Fumaric acid is a butenedioic acid in which the C=C double bond has E geometry. It is an intermediate metabolite in the citric acid cycle. It has a role as a food acidity regulator, a fundamental metabolite and a geroprotector. It is a conjugate acid of a fumarate(1-). Fumaric acid is a metabolite found in or produced by Escherichia coli (strain K12, MG1655). Fumaric acid is a precursor to L-malate in the Krebs tricarboxylic acid cycle. It is formed by the oxidation of succinate by succinate dehydrogenase. Fumarate is converted by fumarase to malate. A fumarate is a salt or ester of the organic compound fumaric acid, a dicarboxylic acid. Fumarate has recently been recognized as an oncometabolite. (A15199). As a food additive, fumaric acid is used to impart a tart taste to processed foods. It is also used as an antifungal agent in boxed foods such as cake mixes and flours, as well as tortillas. Fumaric acid is also added to bread to increase the porosity of the final baked product. It is used to impart a sour taste to sourdough and rye bread. In cake mixes, it is used to maintain a low pH and prevent clumping of the flours used in the mix. In fruit drinks, fumaric acid is used to maintain a low pH which, in turn, helps to stabilize flavor and color. Fumaric acid also prevents the growth of E. coli in beverages when used in combination with sodium benzoate. When added to wines, fumaric acid helps to prevent further fermentation and yet maintain low pH and eliminate traces of metallic elements. In this fashion, it helps to stabilize the taste of wine. Fumaric acid can also be added to dairy products, sports drinks, jams, jellies and candies. Fumaric acid helps to break down bonds between gluten proteins in wheat and helps to create a more pliable dough. Fumaric acid is used in paper sizing, printer toner, and polyester resin for making molded walls. Fumaric acid is a dicarboxylic acid. It is a precursor to L-malate in the Krebs tricarboxylic acid (TCA) cycle. It is formed by the oxidation of succinic acid by succinate dehydrogenase. Fumarate is converted by the enzyme fumarase to malate. Fumaric acid has recently been identified as an oncometabolite or an endogenous, cancer causing metabolite. High levels of this organic acid can be found in tumors or biofluids surrounding tumors. Its oncogenic action appears to due to its ability to inhibit prolyl hydroxylase-containing enzymes. In many tumours, oxygen availability becomes limited (hypoxia) very quickly due to rapid cell proliferation and limited blood vessel growth. The major regulator of the response to hypoxia is the HIF transcription factor (HIF-alpha). Under normal oxygen levels, protein levels of HIF-alpha are very low due to constant degradation, mediated by a series of post-translational modification events catalyzed by the prolyl hydroxylase domain-containing enzymes PHD1, 2 and 3, (also known as EglN2, 1 and 3) that hydroxylate HIF-alpha and lead to its degradation. All three of the PHD enzymes are inhibited by fumarate. Fumaric acid is found to be associated with fumarase deficiency, which is an inborn error of metabolism. It is also a metabolite of Aspergillus. Produced industrially by fermentation of Rhizopus nigricans, or manufactured by catalytic or thermal isomerisation of maleic anhydride or maleic acid. Used as an antioxidant, acidulant, leavening agent and flavouring agent in foods. Present in raw lean fish. Dietary supplement. Used in powdered products since fumaric acid is less hygroscopic than other acids. A precursor to L-malate in the Krebs tricarboxylic acid cycle. It is formed by the oxidation of succinate by succinate dehydrogenase (wikipedia). Fumaric acid is also found in garden tomato, papaya, wild celery, and star fruit. Fumaric acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=110-17-8 (retrieved 2024-07-01) (CAS RN: 110-17-8). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). Fumaric acid, associated with fumarase deficiency, is identified as an oncometabolite or an endogenous, cancer causing metabolite. Fumaric acid, associated with fumarase deficiency, is identified as an oncometabolite or an endogenous, cancer causing metabolite.

L-Glutamic acid

C5H9NO4 (147.0532)

Glutamic acid (Glu), also known as L-glutamic acid or as glutamate, the name of its anion, is an alpha-amino acid. These are amino acids in which the amino group is attached to the carbon atom immediately adjacent to the carboxylate group (alpha carbon). Amino acids are organic compounds that contain amino (‚ÄìNH2) and carboxyl (‚ÄìCOOH) functional groups, along with a side chain (R group) specific to each amino acid. L-glutamic acid is one of 20 proteinogenic amino acids, i.e., the amino acids used in the biosynthesis of proteins. Glutamic acid is found in all organisms ranging from bacteria to plants to animals. It is classified as an acidic, charged (at physiological pH), aliphatic amino acid. In humans it is a non-essential amino acid and can be synthesized via alanine or aspartic acid via alpha-ketoglutarate and the action of various transaminases. Glutamate also plays an important role in the bodys disposal of excess or waste nitrogen. Glutamate undergoes deamination, an oxidative reaction catalysed by glutamate dehydrogenase leading to alpha-ketoglutarate. In many respects glutamate is a key molecule in cellular metabolism. Glutamate is the most abundant fast excitatory neurotransmitter in the mammalian nervous system. At chemical synapses, glutamate is stored in vesicles. Nerve impulses trigger release of glutamate from the pre-synaptic cell. In the opposing post-synaptic cell, glutamate receptors, such as the NMDA receptor, bind glutamate and are activated. Because of its role in synaptic plasticity, it is believed that glutamic acid is involved in cognitive functions like learning and memory in the brain. Glutamate transporters are found in neuronal and glial membranes. They rapidly remove glutamate from the extracellular space. In brain injury or disease, they can work in reverse and excess glutamate can accumulate outside cells. This process causes calcium ions to enter cells via NMDA receptor channels, leading to neuronal damage and eventual cell death, and is called excitotoxicity. The mechanisms of cell death include: Damage to mitochondria from excessively high intracellular Ca2+. Glu/Ca2+-mediated promotion of transcription factors for pro-apoptotic genes, or downregulation of transcription factors for anti-apoptotic genes. Excitotoxicity due to glutamate occurs as part of the ischemic cascade and is associated with stroke and diseases like amyotrophic lateral sclerosis, lathyrism, and Alzheimers disease. Glutamic acid has been implicated in epileptic seizures. Microinjection of glutamic acid into neurons produces spontaneous depolarization around one second apart, and this firing pattern is similar to what is known as paroxysmal depolarizing shift in epileptic attacks. This change in the resting membrane potential at seizure foci could cause spontaneous opening of voltage activated calcium channels, leading to glutamic acid release and further depolarization (http://en.wikipedia.org/wiki/Glutamic_acid). Glutamate was discovered in 1866 when it was extracted from wheat gluten (from where it got its name. Glutamate has an important role as a food additive and food flavoring agent. In 1908, Japanese researcher Kikunae Ikeda identified brown crystals left behind after the evaporation of a large amount of kombu broth (a Japanese soup) as glutamic acid. These crystals, when tasted, reproduced a salty, savory flavor detected in many foods, most especially in seaweed. Professor Ikeda termed this flavor umami. He then patented a method of mass-producing a crystalline salt of glutamic acid, monosodium glutamate. L-glutamic acid is an optically active form of glutamic acid having L-configuration. It has a role as a nutraceutical, a micronutrient, an Escherichia coli metabolite, a mouse metabolite, a ferroptosis inducer and a neurotransmitter. It is a glutamine family amino acid, a proteinogenic amino acid, a glutamic acid and a L-alpha-amino acid. It is a conjugate acid of a L-glutamate(1-). It is an enantiomer of a D-glutamic acid. A peptide that is a homopolymer of glutamic acid. L-Glutamic acid is a metabolite found in or produced by Escherichia coli (strain K12, MG1655). Glutamic acid (Glu), also referred to as glutamate (the anion), is one of the 20 proteinogenic amino acids. It is not among the essential amino acids. Glutamate is a key molecule in cellular metabolism. In humans, dietary proteins are broken down by digestion into amino acids, which serves as metabolic fuel or other functional roles in the body. Glutamate is the most abundant fast excitatory neurotransmitter in the mammalian nervous system. At chemical synapses, glutamate is stored in vesicles. Nerve impulses trigger release of glutamate from the pre-synaptic cell. In the opposing post-synaptic cell, glutamate receptors, such as the NMDA receptor, bind glutamate and are activated. Because of its role in synaptic plasticity, it is believed that glutamic acid is involved in cognitive functions like learning and memory in the brain. Glutamate transporters are found in neuronal and glial membranes. They rapidly remove glutamate from the extracellular space. In brain injury or disease, they can work in reverse and excess glutamate can accumulate outside cells. This process causes calcium ions to enter cells via NMDA receptor channels, leading to neuronal damage and eventual cell death, and is called excitotoxicity. The mechanisms of cell death include: * Damage to mitochondria from excessively high intracellular Ca2+. * Glu/Ca2+-mediated promotion of transcription factors for pro-apoptotic genes, or downregulation of transcription factors for anti-apoptotic genes. Excitotoxicity due to glutamate occurs as part of the ischemic cascade and is associated with stroke and diseases like amyotrophic lateral sclerosis, lathyrism, and Alzheimers disease. glutamic acid has been implicated in epileptic seizures. Microinjection of glutamic acid into neurons produces spontaneous depolarization around one second apart, and this firing pattern is similar to what is known as paroxysmal depolarizing shift in epileptic attacks. This change in the resting membrane potential at seizure foci could cause spontaneous opening of voltage activated calcium channels, leading to glutamic acid release and further depolarization. A non-essential amino acid naturally occurring in the L-form. Glutamic acid is the most common excitatory neurotransmitter in the CENTRAL NERVOUS SYSTEM. See also: Monosodium Glutamate (active moiety of); Glatiramer Acetate (monomer of); Glatiramer (monomer of) ... View More ... obtained from acid hydrolysis of proteins. Since 1965 the industrial source of glutamic acid for MSG production has been bacterial fermentation of carbohydrate sources such as molasses and corn starch hydrolysate in the presence of a nitrogen source such as ammonium salts or urea. Annual production approx. 350000t worldwide in 1988. Seasoning additive in food manuf. (as Na, K and NH4 salts). Dietary supplement, nutrient Glutamic acid (symbol Glu or E;[4] the anionic form is known as glutamate) is an α-amino acid that is used by almost all living beings in the biosynthesis of proteins. It is a non-essential nutrient for humans, meaning that the human body can synthesize enough for its use. It is also the most abundant excitatory neurotransmitter in the vertebrate nervous system. It serves as the precursor for the synthesis of the inhibitory gamma-aminobutyric acid (GABA) in GABAergic neurons. Its molecular formula is C 5H 9NO 4. Glutamic acid exists in two optically isomeric forms; the dextrorotatory l-form is usually obtained by hydrolysis of gluten or from the waste waters of beet-sugar manufacture or by fermentation.[5][full citation needed] Its molecular structure could be idealized as HOOC−CH(NH 2)−(CH 2)2−COOH, with two carboxyl groups −COOH and one amino group −NH 2. However, in the solid state and mildly acidic water solutions, the molecule assumes an electrically neutral zwitterion structure −OOC−CH(NH+ 3)−(CH 2)2−COOH. It is encoded by the codons GAA or GAG. The acid can lose one proton from its second carboxyl group to form the conjugate base, the singly-negative anion glutamate −OOC−CH(NH+ 3)−(CH 2)2−COO−. This form of the compound is prevalent in neutral solutions. The glutamate neurotransmitter plays the principal role in neural activation.[6] This anion creates the savory umami flavor of foods and is found in glutamate flavorings such as MSG. In Europe, it is classified as food additive E620. In highly alkaline solutions the doubly negative anion −OOC−CH(NH 2)−(CH 2)2−COO− prevails. The radical corresponding to glutamate is called glutamyl. The one-letter symbol E for glutamate was assigned in alphabetical sequence to D for aspartate, being larger by one methylene –CH2– group.[7] DL-Glutamic acid is the conjugate acid of Glutamic acid, which acts as a fundamental metabolite. Comparing with the second phase of polymorphs α and β L-Glutamic acid, DL-Glutamic acid presents better stability[1]. DL-Glutamic acid is the conjugate acid of Glutamic acid, which acts as a fundamental metabolite. Comparing with the second phase of polymorphs α and β L-Glutamic acid, DL-Glutamic acid presents better stability[1]. L-Glutamic acid acts as an excitatory transmitter and an agonist at all subtypes of glutamate receptors (metabotropic, kainate, NMDA, and AMPA). L-Glutamic acid shows a direct activating effect on the release of DA from dopaminergic terminals. L-Glutamic acid is an excitatory amino acid neurotransmitter that acts as an agonist for all subtypes of glutamate receptors (metabolic rhodophylline, NMDA, and AMPA). L-Glutamic acid has an agonist effect on the release of DA from dopaminergic nerve endings. L-Glutamic acid can be used in the study of neurological diseases[1][2][3][4][5]. L-Glutamic acid acts as an excitatory transmitter and an agonist at all subtypes of glutamate receptors (metabotropic, kainate, NMDA, and AMPA). L-Glutamic acid shows a direct activating effect on the release of DA from dopaminergic terminals.

4-Hydroxybenzoic acid

C7H6O3 (138.0317)

4-Hydroxybenzoic acid, also known as p-hydroxybenzoate or 4-carboxyphenol, belongs to the class of organic compounds known as hydroxybenzoic acid derivatives. Hydroxybenzoic acid derivatives are compounds containing a hydroxybenzoic acid (or a derivative), which is a benzene ring bearing a carboxyl and a hydroxyl groups. 4-Hydroxybenzoic acid is a white crystalline solid that is slightly soluble in water and chloroform but more soluble in polar organic solvents such as alcohols and acetone. It is a nutty and phenolic tasting compound. 4-Hydroxybenzoic acid exists in all living species, ranging from bacteria to plants to humans. 4-Hydroxybenzoic acid can be found naturally in coconut. It is one of the main catechins metabolites found in humans after consumption of green tea infusions. It is also found in wine, in vanilla, in A√ßa√≠ oil, obtained from the fruit of the a√ßa√≠ palm (Euterpe oleracea), at relatively high concetrations (892¬±52 mg/kg). It is also found in cloudy olive oil and in the edible mushroom Russula virescens. It has been detected in red huckleberries, rabbiteye blueberries, and corianders and in a lower concentration in olives, red raspberries, and almonds. In humans, 4-hydroxybenzoic acid is involved in ubiquinone biosynthesis. In particular, the enzyme 4-hydroxybenzoate polyprenyltransferase uses a polyprenyl diphosphate and 4-hydroxybenzoate to produce diphosphate and 4-hydroxy-3-polyprenylbenzoate. This enzyme participates in ubiquinone biosynthesis. 4-Hydroxybenzoic acid can be biosynthesized by the enzyme Chorismate lyase. Chorismate lyase is an enzyme that transforms chorismate into 4-hydroxybenzoate and pyruvate. This enzyme catalyses the first step in ubiquinone biosynthesis in Escherichia coli and other Gram-negative bacteria. 4-Hydroxybenzoate is an intermediate in many enzyme-mediated reactions in microbes. For instance, the enzyme 4-hydroxybenzaldehyde dehydrogenase uses 4-hydroxybenzaldehyde, NAD+ and H2O to produce 4-hydroxybenzoate, NADH and H+. This enzyme participates in toluene and xylene degradation in bacteria such as Pseudomonas mendocina. 4-hydroxybenzaldehyde dehydrogenase is also found in carrots. The enzyme 4-hydroxybenzoate 1-hydroxylase transforms 4-hydroxybenzoate, NAD(P)H, 2 H+ and O2 into hydroquinone, NAD(P)+, H2O and CO2. This enzyme participates in 2,4-dichlorobenzoate degradation and is found in Candida parapsilosis. The enzyme 4-hydroxybenzoate 3-monooxygenase transforms 4-hydroxybenzoate, NADPH, H+ and O2 into protocatechuate, NADP+ and H2O. This enzyme participates in benzoate degradation via hydroxylation and 2,4-dichlorobenzoate degradation and is found in Pseudomonas putida and Pseudomonas fluorescens. 4-Hydroxybenzoic acid is a popular antioxidant in part because of its low toxicity. 4-Hydroxybenzoic acid has estrogenic activity both in vitro and in vivo (PMID 9417843). Isolated from many plants, free and combined. Alkyl esters of 4-hydroxybenzoic acid (see below) are used as food and cosmetic preservatives, mainly in their Na salt form, which makes them more water soluble. They are active at low concentrations and more pH-independent than the commonly used Benzoic acid DVN38-Z and 2,4-Hexadienoic acid GMZ10-P. The taste is more detectable than for those preservatives. Effectiveness increases with chain length of the alcohol, but for some microorganisms this reduces cell permeability and thus counteracts the increased efficiency. 4-Hydroxybenzoic acid is found in many foods, some of which are chicory, corn, rye, and black huckleberry. 4-hydroxybenzoic acid is a monohydroxybenzoic acid that is benzoic acid carrying a hydroxy substituent at C-4 of the benzene ring. It has a role as a plant metabolite and an algal metabolite. It is a conjugate acid of a 4-hydroxybenzoate. 4-Hydroxybenzoic acid is a metabolite found in or produced by Escherichia coli (strain K12, MG1655). See also: Vaccinium myrtillus Leaf (part of); Galium aparine whole (part of); Menyanthes trifoliata leaf (part of) ... View More ... A monohydroxybenzoic acid that is benzoic acid carrying a hydroxy substituent at C-4 of the benzene ring. 4-Hydroxybenzoic acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=99-96-7 (retrieved 2024-07-01) (CAS RN: 99-96-7). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). 4-Hydroxybenzoic acid, a phenolic derivative of benzoic acid, could inhibit most gram-positive and some gram-negative bacteria, with an IC50 of 160 μg/mL. 4-Hydroxybenzoic acid, a phenolic derivative of benzoic acid, could inhibit most gram-positive and some gram-negative bacteria, with an IC50 of 160 μg/mL.

Succinic acid

C4H6O4 (118.0266)

Succinic acid appears as white crystals or shiny white odorless crystalline powder. pH of 0.1 molar solution: 2.7. Very acid taste. (NTP, 1992) Succinic acid is an alpha,omega-dicarboxylic acid resulting from the formal oxidation of each of the terminal methyl groups of butane to the corresponding carboxy group. It is an intermediate metabolite in the citric acid cycle. It has a role as a nutraceutical, a radiation protective agent, an anti-ulcer drug, a micronutrient and a fundamental metabolite. It is an alpha,omega-dicarboxylic acid and a C4-dicarboxylic acid. It is a conjugate acid of a succinate(1-). A water-soluble, colorless crystal with an acid taste that is used as a chemical intermediate, in medicine, the manufacture of lacquers, and to make perfume esters. It is also used in foods as a sequestrant, buffer, and a neutralizing agent. (Hawleys Condensed Chemical Dictionary, 12th ed, p1099; McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed, p1851) Succinic acid is a metabolite found in or produced by Escherichia coli (strain K12, MG1655). Succinic acid is a dicarboxylic acid. The anion, succinate, is a component of the citric acid cycle capable of donating electrons to the electron transfer chain. Succinic acid is created as a byproduct of the fermentation of sugar. It lends to fermented beverages such as wine and beer a common taste that is a combination of saltiness, bitterness and acidity. Succinate is commonly used as a chemical intermediate, in medicine, the manufacture of lacquers, and to make perfume esters. It is also used in foods as a sequestrant, buffer, and a neutralizing agent. Succinate plays a role in the citric acid cycle, an energy-yielding process and is metabolized by succinate dehydrogenase to fumarate. Succinate dehydrogenase (SDH) plays an important role in the mitochondria, being both part of the respiratory chain and the Krebs cycle. SDH with a covalently attached FAD prosthetic group, binds enzyme substrates (succinate and fumarate) and physiological regulators (oxaloacetate and ATP). Oxidizing succinate links SDH to the fast-cycling Krebs cycle portion where it participates in the breakdown of acetyl-CoA throughout the whole Krebs cycle. Succinate can readily be imported into the mitochondrial matrix by the n-butylmalonate- (or phenylsuccinate-) sensitive dicarboxylate carrier in exchange with inorganic phosphate or another organic acid, e.g. malate. (A3509) Mutations in the four genes encoding the subunits of succinate dehydrogenase are associated with a wide spectrum of clinical presentations (i.e.: Huntingtons disease. (A3510). Succinate also acts as an oncometabolite. Succinate inhibits 2-oxoglutarate-dependent histone and DNA demethylase enzymes, resulting in epigenetic silencing that affects neuroendocrine differentiation. A water-soluble, colorless crystal with an acid taste that is used as a chemical intermediate, in medicine, the manufacture of lacquers, and to make perfume esters. It is also used in foods as a sequestrant, buffer, and a neutralizing agent. (Hawleys Condensed Chemical Dictionary, 12th ed, p1099; McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed, p1851) Succinic acid (succinate) is a dicarboxylic acid. It is an important component of the citric acid or TCA cycle and is capable of donating electrons to the electron transfer chain. Succinate is found in all living organisms ranging from bacteria to plants to mammals. In eukaryotes, succinate is generated in the mitochondria via the tricarboxylic acid cycle (TCA). Succinate can readily be imported into the mitochondrial matrix by the n-butylmalonate- (or phenylsuccinate-) sensitive dicarboxylate carrier in exchange with inorganic phosphate or another organic acid, e. g. malate (PMID 16143825). Succinate can exit the mitochondrial matrix and function in the cytoplasm as well as the extracellular space. Succinate has multiple biological roles including roles as a metabolic intermediate and roles as a cell signalling molecule. Succinate can alter gene expression patterns, thereby modulating the epigenetic landscape or it can exhibit hormone-like signaling functions (PMID: 26971832). As such, succinate links cellular metabolism, especially ATP formation, to the regulation of cellular function. Succinate can be broken down or metabolized into fumarate by the enzyme succinate dehydrogenase (SDH), which is part of the electron transport chain involved in making ATP. Dysregulation of succinate synthesis, and therefore ATP synthesis, can happen in a number of genetic mitochondrial diseases, such as Leigh syndrome, and Melas syndrome. Succinate has been found to be associated with D-2-hydroxyglutaric aciduria, which is an inborn error of metabolism. Succinic acid has recently been identified as an oncometabolite or an endogenous, cancer causing metabolite. High levels of this organic acid can be found in tumors or biofluids surrounding tumors. Its oncogenic action appears to due to its ability to inhibit prolyl hydroxylase-containing enzymes. In many tumours, oxygen availability becomes limited (hypoxia) very quickly due to rapid cell proliferation and limited blood vessel growth. The major regulator of the response to hypoxia is the HIF transcription factor (HIF-alpha). Under normal oxygen levels, protein levels of HIF-alpha are very low due to constant degradation, mediated by a series of post-translational modification events catalyzed by the prolyl hydroxylase domain-containing enzymes PHD1, 2 and 3, (also known as EglN2, 1 and 3) that hydroxylate HIF-alpha and lead to its degradation. All three of the PHD enzymes are inhibited by succinate. In humans, urinary succinic acid is produced by Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumonia, Enterobacter, Acinetobacter, Proteus mirabilis, Citrobacter frundii, Enterococcus faecalis (PMID: 22292465). Succinic acid is also found in Actinobacillus, Anaerobiospirillum, Mannheimia, Corynebacterium and Basfia (PMID: 22292465; PMID: 18191255; PMID: 26360870). Succinic acid is widely distributed in higher plants and produced by microorganisms. It is found in cheeses and fresh meats. Succinic acid is a flavouring enhancer, pH control agent [DFC]. Succinic acid is also found in yellow wax bean, swamp cabbage, peanut, and abalone. An alpha,omega-dicarboxylic acid resulting from the formal oxidation of each of the terminal methyl groups of butane to the corresponding carboxy group. It is an intermediate metabolite in the citric acid cycle. COVID info from PDB, Protein Data Bank Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS Acquisition and generation of the data is financially supported in part by CREST/JST. KEIO_ID S004 Succinic acid is a potent and orally active anxiolytic agent. Succinic acid is an intermediate product of the tricarboxylic acid cycle. Succinic acid can be used as a precursor of many industrially important chemicals in food, chemical and pharmaceutical industries[1][2]. Succinic acid is a potent and orally active anxiolytic agent. Succinic acid is an intermediate product of the tricarboxylic acid cycle. Succinic acid can be used as a precursor of many industrially important chemicals in food, chemical and pharmaceutical industries[1][2].

D-Pinitol

C7H14O6 (194.079)

Widely distributed in plants. Pinitol is a cyclitol, a cyclic polyol. It is a known anti-diabetic agent isolated from Sutherlandia frutescens leaves. D-Pinitol is a biomarker for the consumption of soy beans and other soy products. D-Pinitol is found in many foods, some of which are ginkgo nuts, carob, soy bean, and common pea. D-Pinitol is found in carob. D-Pinitol is widely distributed in plants.Pinitol is a cyclitol, a cyclic polyol. It is a known anti-diabetic agent isolated from Sutherlandia frutescens leaves. (Wikipedia). D-Pinitol is a biomarker for the consumption of soy beans and other soy products. D-pinitol (3-O-Methyl-D-chiro-inositol) is a natural compound presented in several plants, like Pinaceae and Leguminosae plants. D-pinitol exerts hypoglycemic activity and protective effects in the cardiovascular system[1][2]. D-pinitol has antiviral and larvicidal activities[3]. D-pinitol (3-O-Methyl-D-chiro-inositol) is a natural compound presented in several plants, like Pinaceae and Leguminosae plants. D-pinitol exerts hypoglycemic activity and protective effects in the cardiovascular system[1][2]. D-pinitol has antiviral and larvicidal activities[3].

Palmitic acid

C16H32O2 (256.2402)

Palmitic acid, also known as palmitate or hexadecanoic acid, is a member of the class of compounds known as long-chain fatty acids. Long-chain fatty acids are fatty acids with an aliphatic tail that contains between 13 and 21 carbon atoms. Thus, palmitic acid is considered to be a fatty acid lipid molecule. Palmitic acid is practically insoluble (in water) and a weakly acidic compound (based on its pKa). Palmitic acid can be found in a number of food items such as sacred lotus, spinach, shallot, and corn salad, which makes palmitic acid a potential biomarker for the consumption of these food products. Palmitic acid can be found primarily in most biofluids, including feces, sweat, cerebrospinal fluid (CSF), and urine, as well as throughout most human tissues. Palmitic acid exists in all living species, ranging from bacteria to humans. In humans, palmitic acid is involved in several metabolic pathways, some of which include alendronate action pathway, rosuvastatin action pathway, simvastatin action pathway, and cerivastatin action pathway. Palmitic acid is also involved in several metabolic disorders, some of which include hypercholesterolemia, familial lipoprotein lipase deficiency, ethylmalonic encephalopathy, and carnitine palmitoyl transferase deficiency (I). Moreover, palmitic acid is found to be associated with schizophrenia. Palmitic acid is a non-carcinogenic (not listed by IARC) potentially toxic compound. Palmitic acid, or hexadecanoic acid in IUPAC nomenclature, is the most common saturated fatty acid found in animals, plants and microorganisms. Its chemical formula is CH3(CH2)14COOH, and its C:D is 16:0. As its name indicates, it is a major component of the oil from the fruit of oil palms (palm oil). Palmitic acid can also be found in meats, cheeses, butter, and dairy products. Palmitate is the salts and esters of palmitic acid. The palmitate anion is the observed form of palmitic acid at physiologic pH (7.4) . Palmitic acid is the first fatty acid produced during lipogenesis (fatty acid synthesis) and from which longer fatty acids can be produced. Palmitate negatively feeds back on acetyl-CoA carboxylase (ACC) which is responsible for converting acetyl-ACP to malonyl-ACP on the growing acyl chain, thus preventing further palmitate generation (DrugBank). Palmitic acid, or hexadecanoic acid, is one of the most common saturated fatty acids found in animals, plants, and microorganisms. As its name indicates, it is a major component of the oil from the fruit of oil palms (palm oil). Excess carbohydrates in the body are converted to palmitic acid. Palmitic acid is the first fatty acid produced during fatty acid synthesis and is the precursor to longer fatty acids. As a consequence, palmitic acid is a major body component of animals. In humans, one analysis found it to make up 21–30\\\% (molar) of human depot fat (PMID: 13756126), and it is a major, but highly variable, lipid component of human breast milk (PMID: 352132). Palmitic acid is used to produce soaps, cosmetics, and industrial mould release agents. These applications use sodium palmitate, which is commonly obtained by saponification of palm oil. To this end, palm oil, rendered from palm tree (species Elaeis guineensis), is treated with sodium hydroxide (in the form of caustic soda or lye), which causes hydrolysis of the ester groups, yielding glycerol and sodium palmitate. Aluminium salts of palmitic acid and naphthenic acid were combined during World War II to produce napalm. The word "napalm" is derived from the words naphthenic acid and palmitic acid (Wikipedia). Palmitic acid is also used in the determination of water hardness and is a surfactant of Levovist, an intravenous ultrasonic contrast agent. Hexadecanoic acid is a straight-chain, sixteen-carbon, saturated long-chain fatty acid. It has a role as an EC 1.1.1.189 (prostaglandin-E2 9-reductase) inhibitor, a plant metabolite, a Daphnia magna metabolite and an algal metabolite. It is a long-chain fatty acid and a straight-chain saturated fatty acid. It is a conjugate acid of a hexadecanoate. A common saturated fatty acid found in fats and waxes including olive oil, palm oil, and body lipids. Palmitic acid is a metabolite found in or produced by Escherichia coli (strain K12, MG1655). Palmitic Acid is a saturated long-chain fatty acid with a 16-carbon backbone. Palmitic acid is found naturally in palm oil and palm kernel oil, as well as in butter, cheese, milk and meat. Palmitic acid, or hexadecanoic acid is one of the most common saturated fatty acids found in animals and plants, a saturated fatty acid found in fats and waxes including olive oil, palm oil, and body lipids. It occurs in the form of esters (glycerides) in oils and fats of vegetable and animal origin and is usually obtained from palm oil, which is widely distributed in plants. Palmitic acid is used in determination of water hardness and is an active ingredient of *Levovist*TM, used in echo enhancement in sonographic Doppler B-mode imaging and as an ultrasound contrast medium. A common saturated fatty acid found in fats and waxes including olive oil, palm oil, and body lipids. A straight-chain, sixteen-carbon, saturated long-chain fatty acid. Palmitic acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=57-10-3 (retrieved 2024-07-01) (CAS RN: 57-10-3). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

beta-Sitosterol

C29H50O (414.3861)

beta-Sitosterol, a main dietary phytosterol found in plants, may have the potential for prevention and therapy for human cancer. Phytosterols are plant sterols found in foods such as oils, nuts, and vegetables. Phytosterols, in the same way as cholesterol, contain a double bond and are susceptible to oxidation, and are characterized by anti-carcinogenic and anti-atherogenic properties (PMID:13129445, 11432711). beta-Sitosterol is a phytopharmacological extract containing a mixture of phytosterols, with smaller amounts of other sterols, bonded with glucosides. These phytosterols are commonly derived from the South African star grass, Hypoxis rooperi, or from species of Pinus and Picea. The purported active constituent is termed beta-sitosterol. Additionally, the quantity of beta-sitosterol-beta-D-glucoside is often reported. Although the exact mechanism of action of beta-sitosterols is unknown, it may be related to cholesterol metabolism or anti-inflammatory effects (via interference with prostaglandin metabolism). Compared with placebo, beta-sitosterol improved urinary symptom scores and flow measures (PMID:10368239). A plant food-based diet modifies the serum beta-sitosterol concentration in hyperandrogenic postmenopausal women. This finding indicates that beta-sitosterol can be used as a biomarker of exposure in observational studies or as a compliance indicator in dietary intervention studies of cancer prevention (PMID:14652381). beta-Sitosterol induces apoptosis and activates key caspases in MDA-MB-231 human breast cancer cells (PMID:12579296). Sitosterol is a member of the class of phytosterols that is stigmast-5-ene substituted by a beta-hydroxy group at position 3. It has a role as a sterol methyltransferase inhibitor, an anticholesteremic drug, an antioxidant, a plant metabolite and a mouse metabolite. It is a 3beta-sterol, a stigmastane sterol, a 3beta-hydroxy-Delta(5)-steroid, a C29-steroid and a member of phytosterols. It derives from a hydride of a stigmastane. Active fraction of Solanum trilobatum; reduces side-effects of radiation-induced toxicity. Beta-Sitosterol is a natural product found in Elodea canadensis, Ophiopogon intermedius, and other organisms with data available. beta-Sitosterol is one of several phytosterols (plant sterols) with chemical structures similar to that of cholesterol. Sitosterols are white, waxy powders with a characteristic odor. They are hydrophobic and soluble in alcohols. beta-Sitosterol is found in many foods, some of which are ginseng, globe artichoke, sesbania flower, and common oregano. C1907 - Drug, Natural Product > C28178 - Phytosterol > C68437 - Unsaturated Phytosterol D057847 - Lipid Regulating Agents > D000960 - Hypolipidemic Agents D009676 - Noxae > D000963 - Antimetabolites Beta-Sitosterol (purity>98\\%) is a plant sterol. Beta-Sitosterol (purity>98\\%) interfere with multiple cell signaling pathways, including cell cycle, apoptosis, proliferation, survival, invasion, angiogenesis, metastasis and inflammation[1]. Beta-Sitosterol (purity>98\%) is a plant sterol. Beta-Sitosterol (purity>98\%) interfere with multiple cell signaling pathways, including cell cycle, apoptosis, proliferation, survival, invasion, angiogenesis, metastasis and inflammation[1].

Afzelin

C21H20O10 (432.1056)

Afzelin is a glycosyloxyflavone that is kaempferol attached to an alpha-L-rhamnosyl residue at position 3 via a glycosidic linkage. It has a role as a plant metabolite, an antibacterial agent and an anti-inflammatory agent. It is a glycosyloxyflavone, a trihydroxyflavone and a monosaccharide derivative. It is functionally related to a kaempferol. It is a conjugate acid of an afzelin(1-). Afzelin is a natural product found in Premna odorata, Vicia tenuifolia, and other organisms with data available. [Raw Data] CBA27_Afzelin_neg_30eV_1-1_01_1585.txt [Raw Data] CBA27_Afzelin_pos_20eV_1-1_01_1549.txt [Raw Data] CBA27_Afzelin_pos_10eV_1-1_01_1540.txt [Raw Data] CBA27_Afzelin_neg_10eV_1-1_01_1576.txt [Raw Data] CBA27_Afzelin_neg_20eV_1-1_01_1584.txt [Raw Data] CBA27_Afzelin_neg_40eV_1-1_01_1586.txt [Raw Data] CBA27_Afzelin_pos_30eV_1-1_01_1550.txt [Raw Data] CBA27_Afzelin_pos_50eV_1-1_01_1552.txt [Raw Data] CBA27_Afzelin_pos_40eV_1-1_01_1551.txt [Raw Data] CBA27_Afzelin_neg_50eV_1-1_01_1587.txt Afzelin (Kaempferol-3-O-rhamnoside) is is a flavonol glycoside found in Houttuynia cordata Thunberg and is widely used in the preparation of antibacterial and antipyretic agents, detoxicants and for the treatment of inflammation. Afzelin attenuates the mitochondrial damage, enhances mitochondrial biogenesis and decreases the level of mitophagy-related proteins, parkin and PTEN-induced putative kinase 1. Afzelin improves the survival rate and reduces the serum levels of alanine aminotransferase and pro-inflammatory cytokines in D-galactosamine (GalN)/LPS -treated mice[1]. Afzelin (Kaempferol-3-O-rhamnoside)It is a flavonol glycoside that has anti-inflammatory, anti-oxidative stress response, anti-apoptotic, and anti-cardiac cytotoxic effects. AfzelinIt can reduce mitochondrial damage, enhance mitochondrial biosynthesis, and reduce mitochondria-related proteins. Parkinand PTENinduced putative kinase 1 (putative kinase 1)s level. AfzelinCan be improved D-galactosamine(GalN)/LPSSurvival rate of mice treated with doxorubicin prophylaxis (HY-15142A)Induced cardiotoxicity and scopolamine (HY-N0296)-induced neurological injury. AfzelinAlso inhibits asthma and allergies caused by ovalbumin[1][2][3][4]. Afzelin (Kaempferol-3-O-rhamnoside) is is a flavonol glycoside found in Houttuynia cordata Thunberg and is widely used in the preparation of antibacterial and antipyretic agents, detoxicants and for the treatment of inflammation. Afzelin attenuates the mitochondrial damage, enhances mitochondrial biogenesis and decreases the level of mitophagy-related proteins, parkin and PTEN-induced putative kinase 1. Afzelin improves the survival rate and reduces the serum levels of alanine aminotransferase and pro-inflammatory cytokines in D-galactosamine (GalN)/LPS -treated mice[1].

Linamarin

C10H17NO6 (247.1056)

Linamarin is a beta-D-glucoside. It is functionally related to a 2-hydroxy-2-methylpropanenitrile. Linamarin is a natural product found in Osteospermum ecklonis, Lotus arenarius, and other organisms with data available. Linamarin is found in coffee and coffee products. Linamarin occurs in manioc (Manihot utilissimus), flax (Linum usitatissimum), Phaseolus lunatus (butter bean), Trifolium repens (white clover) and other plants. First isloated in 1830. Occurs in manioc (Manihot utilissimus), flax (Linum usitatissimum), Phaseolus lunatus (butter bean), Trifolium repens (white clover) and other plants. First isol in 1830. Linamarin is found in many foods, some of which are gooseberry, chinese broccoli, cascade huckleberry, and leek. Linamarin is found in coffee and coffee products. Linamarin occurs in manioc (Manihot utilissimus), flax (Linum usitatissimum), Phaseolus lunatus (butter bean), Trifolium repens (white clover) and other plants. First isloated in 1830. Linamarin, a natural compound, possesses anticancer activity[1]. Linamarin, a natural compound, possesses anticancer activity[1].

L-Ascorbic acid

C6H8O6 (176.0321)

L-ascorbic acid is a white to very pale yellow crystalline powder with a pleasant sharp acidic taste. Almost odorless. (NTP, 1992) L-ascorbic acid is the L-enantiomer of ascorbic acid and conjugate acid of L-ascorbate. It has a role as a coenzyme, a flour treatment agent, a food antioxidant, a plant metabolite, a cofactor, a skin lightening agent and a geroprotector. It is an ascorbic acid and a vitamin C. It is a conjugate acid of a L-ascorbate. It is an enantiomer of a D-ascorbic acid. A six carbon compound related to glucose. It is found naturally in citrus fruits and many vegetables. Ascorbic acid is an essential nutrient in human diets, and necessary to maintain connective tissue and bone. Its biologically active form, vitamin C, functions as a reducing agent and coenzyme in several metabolic pathways. Vitamin C is considered an antioxidant. Ascorbic acid is a metabolite found in or produced by Escherichia coli (strain K12, MG1655). Ascorbic acid is a Vitamin C. Ascorbic Acid is a natural product found in Populus tremula, Rosa platyacantha, and other organisms with data available. Ascorbic Acid is a natural water-soluble vitamin (Vitamin C). Ascorbic acid is a potent reducing and antioxidant agent that functions in fighting bacterial infections, in detoxifying reactions, and in the formation of collagen in fibrous tissue, teeth, bones, connective tissue, skin, and capillaries. Found in citrus and other fruits, and in vegetables, vitamin C cannot be produced or stored by humans and must be obtained in the diet. (NCI04) A six carbon compound related to glucose. It is found naturally in citrus fruits and many vegetables. Ascorbic acid is an essential nutrient in human diets, and necessary to maintain connective tissue and bone. Its biologically active form, vitamin C, functions as a reducing agent and coenzyme in several metabolic pathways. Vitamin C is considered an antioxidant. See also: Sodium Ascorbate (active moiety of); D-ascorbic acid (related); Magnesium Ascorbyl Phosphate (active moiety of) ... View More ... G - Genito urinary system and sex hormones > G01 - Gynecological antiinfectives and antiseptics > G01A - Antiinfectives and antiseptics, excl. combinations with corticosteroids > G01AD - Organic acids A - Alimentary tract and metabolism > A11 - Vitamins > A11G - Ascorbic acid (vitamin c), incl. combinations > A11GA - Ascorbic acid (vitamin c), plain B - Blood and blood forming organs > B03 - Antianemic preparations > B03A - Iron preparations > B03AA - Iron bivalent, oral preparations COVID info from clinicaltrial, clinicaltrials, clinical trial, clinical trials D020011 - Protective Agents > D000975 - Antioxidants C26170 - Protective Agent > C275 - Antioxidant D018977 - Micronutrients > D014815 - Vitamins S - Sensory organs > S01 - Ophthalmologicals L-Ascorbic acid (L-Ascorbate), an electron donor, is an endogenous antioxidant agent. L-Ascorbic acid inhibits selectively Cav3.2 channels with an IC50 of 6.5 μM. L-Ascorbic acid is also a collagen deposition enhancer and an elastogenesis inhibitor[1][2][3]. L-Ascorbic acid exhibits anti-cancer effects through the generation of reactive oxygen species (ROS) and selective damage to cancer cells[4]. L-Ascorbic acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=50-81-7 (retrieved 2024-10-29) (CAS RN: 50-81-7). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Trehalose

C12H22O11 (342.1162)

Trehalose, also known as mycose, is a 1-alpha (disaccharide) sugar found extensively but not abundantly in nature. It is thought to be implicated in anhydrobiosis - the ability of plants and animals to withstand prolonged periods of desiccation. The sugar is thought to form a gel phase as cells dehydrate, which prevents disruption of internal cell organelles by effectively splinting them in position. Rehydration then allows normal cellular activity to be resumed without the major, generally lethal damage that would normally follow a dehydration/reyhdration cycle. Trehalose is a non-reducing sugar formed from two glucose units joined by a 1-1 alpha bond giving it the name of alpha-D-glucopyranoglucopyranosyl-1,1-alpha-D-glucopyranoside. The bonding makes trehalose very resistant to acid hydrolysis, and therefore stable in solution at high temperatures even under acidic conditions. The bonding also keeps non-reducing sugars in closed-ring form, such that the aldehyde or ketone end-groups do not bind to the lysine or arginine residues of proteins (a process called glycation). The enzyme trehalase, present but not abundant in most people, breaks it into two glucose molecules, which can then be readily absorbed in the gut. Trehalose is an important components of insects circulating fluid. It acts as a storage form of insect circulating fluid and it is important in respiration. Trehalose has also been found to be a metabolite of Burkholderia, Escherichia and Propionibacterium (PMID:12105274; PMID:25479689) (krishikosh.egranth.ac.in/bitstream/1/84382/1/88571\\\\%20P-1257.pdf). Alpha,alpha-trehalose is a trehalose in which both glucose residues have alpha-configuration at the anomeric carbon. It has a role as a human metabolite, a Saccharomyces cerevisiae metabolite, an Escherichia coli metabolite, a mouse metabolite and a geroprotector. Cabaletta has been used in trials studying the treatment of Oculopharyngeal Muscular Dystrophy. Trehalose is a metabolite found in or produced by Escherichia coli (strain K12, MG1655). Trehalose is a natural product found in Cora pavonia, Selaginella nothohybrida, and other organisms with data available. Trehalose is a metabolite found in or produced by Saccharomyces cerevisiae. Occurs in fungi. EU and USA approved sweetener Acquisition and generation of the data is financially supported in part by CREST/JST. CONFIDENCE standard compound; INTERNAL_ID 149 D-(+)-Trehalose,which is widespread, can be used as a food ingredient and pharmaceutical excipient. D-(+)-Trehalose,which is widespread, can be used as a food ingredient and pharmaceutical excipient.

Putrescine

C4H12N2 (88.1)

Putrescine is a four-carbon alkane-alpha,omega-diamine. It is obtained by the breakdown of amino acids and is responsible for the foul odour of putrefying flesh. It has a role as a fundamental metabolite and an antioxidant. It is a conjugate base of a 1,4-butanediammonium. Putrescine is a toxic diamine formed by putrefaction from the decarboxylation of arginine and ornithine. Putrescine is a solid. This compound belongs to the polyamines. These are compounds containing more than one amine group. Known drug targets of putrescine include putrescine-binding periplasmic protein, ornithine decarboxylase, and S-adenosylmethionine decarboxylase proenzyme. Putrescine is a metabolite found in or produced by Escherichia coli (strain K12, MG1655). 1,4-Diaminobutane is a natural product found in Eupatorium cannabinum, Populus tremula, and other organisms with data available. Putrescine is a four carbon diamine produced during tissue decomposition by the decarboxylation of amino acids. Polyamines, including putrescine, may act as growth factors that promote cell division; however, putrescine is toxic at high doses. Putrescine is a uremic toxin. Uremic toxins can be subdivided into three major groups based upon their chemical and physical characteristics: 1) small, water-soluble, non-protein-bound compounds, such as urea; 2) small, lipid-soluble and/or protein-bound compounds, such as the phenols and 3) larger so-called middle-molecules, such as beta2-microglobulin. Chronic exposure of uremic toxins can lead to a number of conditions including renal damage, chronic kidney disease and cardiovascular disease.Putrescine is a polyamine. Putrescine is related to cadaverine (another polyamine). Both are produced by the breakdown of amino acids in living and dead organisms and both are toxic in large doses. Putrescine and cadaverine are largely responsible for the foul odor of putrefying flesh, but also contribute to the odor of such processes as bad breath and bacterial vaginosis. Putrescine is also found in semen. Putrescine attacks s-adenosyl methionine and converts it to spermidine. Spermidine in turn attacks another s-adenosyl methionine and converts it to spermine. Putrescine is synthesized in small quantities by healthy living cells by the action of ornithine decarboxylase. The polyamines, of which putrescine is one of the simplest, appear to be growth factors necessary for cell division. Putrescine apparently has specific role in skin physiology and neuroprotection. Pharmacological interventions have demonstrated convincingly that a steady supply of polyamines is a prerequisite for cell proliferation to occur. Genetic engineering of polyamine metabolism in transgenic rodents has shown that polyamines play a role in spermatogenesis, skin physiology, promotion of tumorigenesis and organ hypertrophy as well as neuronal protection. Transgenic activation of polyamine catabolism not only profoundly disturbs polyamine homeostasis in most tissues, but also creates a complex phenotype affecting skin, female fertility, fat depots, pancreatic integrity and regenerative growth. Transgenic expression of ornithine decarboxylase antizyme has suggested that this unique protein may act as a general tumor suppressor. Homozygous deficiency of the key biosynthetic enzymes of the polyamines, ornithine and S-adenosylmethionine decarboxylase is not compatible with murine embryogenesis. (A3286, A3287). Putrescine is a metabolite found in or produced by Saccharomyces cerevisiae. A toxic diamine formed by putrefaction from the decarboxylation of arginine and ornithine. Putrescine is a polyamine. Putrescine is related to cadaverine (another polyamine). Both are produced by the breakdown of amino acids in living and dead organisms and both are toxic in large doses. Putrescine and cadaverine are largely responsible for the foul odor of putrefying flesh, but also contribute to the odor of such processes as bad breath and bacterial vaginosis. Putrescine has been identified as a uremic toxin according to the European Uremic Toxin Working Group (PMID:22626821). It is also found in semen. Putrescine attacks s-adenosyl methionine and converts it to spermidine. Spermidine in turn attacks another s-adenosyl methionine and converts it to spermine. Putrescine is synthesized in small quantities by healthy living cells by the action of ornithine decarboxylase. The polyamines, of which putrescine is one of the simplest, appear to be growth factors necessary for cell division. Putrescine apparently has specific role in skin physiology and neuroprotection. (PMID:15009201, 16364196). Pharmacological interventions have demonstrated convincingly that a steady supply of polyamines is a prerequisite for cell proliferation to occur. Genetic engineering of polyamine metabolism in transgenic rodents has shown that polyamines play a role in spermatogenesis, skin physiology, promotion of tumorigenesis and organ hypertrophy as well as neuronal protection. Transgenic activation of polyamine catabolism not only profoundly disturbs polyamine homeostasis in most tissues, but also creates a complex phenotype affecting skin, female fertility, fat depots, pancreatic integrity and regenerative growth. Transgenic expression of ornithine decarboxylase antizyme has suggested that this unique protein may act as a general tumor suppressor. Homozygous deficiency of the key biosynthetic enzymes of the polyamines, ornithine and S-adenosylmethionine decarboxylase is not compatible with murine embryogenesis. Putrescine can be found in Citrobacter, Corynebacterium, Cronobacter and Enterobacter (PMID:27872963) (https://onlinelibrary.wiley.com/doi/full/10.1111/1541-4337.12099). Putrescine is an organic chemical compound related to cadaverine; both are produced by the breakdown of amino acids in living and dead organisms and both are toxic in large doses. The two compounds are largely responsible for the foul odor of putrefying flesh, but also contribute to the odor of such processes as bad breath and bacterial vaginosis. They are also found in semen and some microalgae, together with related molecules like spermine and spermidine. A four-carbon alkane-alpha,omega-diamine. It is obtained by the breakdown of amino acids and is responsible for the foul odour of putrefying flesh. Acquisition and generation of the data is financially supported in part by CREST/JST. KEIO_ID B001

Lotaustralin

C11H19NO6 (261.1212)

Lotaustralin is a cyanogenic glycoside. Lotaustralin is a natural product found in Osteospermum ecklonis, Lotus arenarius, and other organisms with data available. Epilotaustralin is found in cereals and cereal products. Epilotaustralin is isolated from Triticum monococcum (wheat). Glycoside from Trifolium repens (white clover) and other plants Lotaustralin is a cyanogenic glucoside isolated from Manihot esculenta [1].

2-Isopropylmalic acid

C7H12O5 (176.0685)

2-Isopropylmalic acid (CAS: 3237-44-3), also known as 3-carboxy-3-hydroxyisocaproic acid, belongs to the class of organic compounds known as hydroxy fatty acids. These are fatty acids in which the chain bears a hydroxyl group. 2-Isopropylmalic acid is a very hydrophobic molecule, practically insoluble (in water), and relatively neutral. 2-Isopropylmalic acid is an alpha-hydroxy organic acid regularly occurring in the urine of healthy individuals (PMID: 2338430, 544608), and in hemofiltrates (PMID: 7251751). 2-Isopropylmalic acid is elevated during fasting and diabetic ketoacidosis (PMID: 1591279). It is also a metabolite found in Acetobacter (PMID: 6035258). α-Isopropylmalate (α-IPM) is the leucine biosynthetic precursor in Yeast[1]. α-Isopropylmalate. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=3237-44-3 (retrieved 2024-08-26) (CAS RN: 3237-44-3). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

3-hydroxy-3-methylglutarate

C6H10O5 (162.0528)

3-Hydroxymethylglutaric acid is an "off-product" intermediate in the leucine degradation process. It is produced by defective or inefficient versions of 3-hydroxy-3-methylglutaryl-CoA lyase, an enzyme that normally catalyzes the conversion of 3-hydroxy-3-methylglutaryl-CoA to acetyl-CoA and acetoacetate. If this enzyme is defective, 3-hydroxy-3-methylglutaryl-CoA will accumulate in the mitochondria. Increased concentrations of 3-hydroxy-3-methylglutaryl-CoA can lead to a disruption of the esterified CoA:free CoA ratio and ultimately to mitochondrial toxicity. Detoxification of these CoA end products occurs via the transfer of the 3-hydroxymethylglutaryl moiety to carnitine, forming 3-hydroxymethylglutaric-carnitine, which is then transferred across the inner mitochondrial membrane where 3-hydroxymethylglutaric acid is released as the free acid. 3-Hydroxymethylglutaric acid has been found to accumulate in the urine of patients affected by 3-Hydroxy-3-methylglutaric aciduria, a rare inborn error of metabolism (OMIM: 246450). 3-Hydroxy-3-methylglutaric aciduria is caused by significantly reduced enzyme activity of the intramitochondrial 3-hydroxy-3-methylglutaryl-CoA lyase (EC 4.1.3.4), the enzyme that catalyzes the final step of leucine degradation. This enzyme also plays a key role in ketone body formation. The profile of urinary organic acids for individuals with 3-hydroxy-3-methylglutaric aciduria is different from that of the other identified defects of leucine degradation, such as maple syrup urine disease (OMIM: 248600), isovaleric acidemia (OMIM: 243500), and methylcrotonylglycinemia (OMIM: 210200). The urinary organic acid profile of 3-hydroxy-3-methylglutaric aciduria includes elevated concentrations of 3-hydroxy-3-isovaleric, 3-hydroxy-3-methylglutaric, 3-methylglutaconic, and 3-methylglutaric acids (PMID: 10916782, 9658458, 3063529). Clinical manifestations of 3-hydroxy-3-methylglutaric aciduria include hepatomegaly, lethargy, coma, and apnea. Biochemically, there is a characteristic absence of ketosis with hypoglycemia, acidosis, hypertransaminasemia, and variable hyperammonemia. Therefore, when present in sufficiently high concentrations, 3-hydroxymethylglutaric acid can act as an acidogen and a metabotoxin. An acidogen is an acidic compound that induces acidosis, which has multiple adverse effects on many organ systems. A metabotoxin is an endogenously produced metabolite that causes adverse health effects at chronically high levels. As noted above, chronically high levels of 3-hydroxymethylglutaric acid are associated with the inborn error of metabolism 3-hydroxy-3-methylglutaryl-CoA lyase deficiency. 3-Hydroxymethylglutaric acid is an organic acid. Abnormally high levels of organic acids in the blood (organic acidemia), urine (organic aciduria), the brain, and other tissues lead to general metabolic acidosis. Acidosis typically occurs when arterial pH falls below 7.35. In infants with acidosis, the initial symptoms include poor feeding, vomiting, loss of appetite, weak muscle tone (hypotonia), and lack of energy (lethargy). These can progress to heart, liver, and kidney abnormalities, seizures, coma, and possibly death. These are also the characteristic symptoms of the untreated IEMs mentioned above. Many affected children with organic acidemias experience intellectual disability or delayed development. In adults, acidosis or acidemia is characterized by headaches, confusion, feeling tired, tremors, sleepiness, and seizures. 3-hydroxymethylglutaric acid, also known as meglutol or dicrotalic acid, is a member of the class of compounds known as hydroxy fatty acids. Hydroxy fatty acids are fatty acids in which the chain bears a hydroxyl group. 3-hydroxymethylglutaric acid is soluble (in water) and a weakly acidic compound (based on its pKa). 3-hydroxymethylglutaric acid can be synthesized from glutaric acid. 3-hydroxymethylglutaric acid is also a parent compound for other transformation products, including but not limited to, viscumneoside VII, viscumneoside IV, and yanuthone D. 3-hydroxymethylglutaric acid can be found in flaxseed, which makes 3-hydroxymethylglutaric acid a potential biomarker for the consumption of this food product. 3-hydroxymethylglutaric acid can be found primarily in saliva and urine. 3-hydroxymethylglutaric acid is a non-carcinogenic (not listed by IARC) potentially toxic compound. Chronically high levels of 3-hydroxymethylglutaric acid are associated with the inborn error of metabolism: 3-Hydroxy-3-Methylglutaryl-CoA Lyase Deficiency (T3DB). Meglutol is an antilipidemic agent that lowers cholesterol, triglycerides, and serum beta-lipoproteins and phospholipids, and inhibits hydroxymethylglutaryl-CoA reductase activity, which is the rate-limiting enzyme in cholesterol biosynthesis. Meglutol is an antilipidemic agent that lowers cholesterol, triglycerides, and serum beta-lipoproteins and phospholipids, and inhibits hydroxymethylglutaryl-CoA reductase activity, which is the rate-limiting enzyme in cholesterol biosynthesis.

Asparagine

C4H8N2O3 (132.0535)

Asparagine (Asn) or L-asparagine is an alpha-amino acid. These are amino acids in which the amino group is attached to the carbon atom immediately adjacent to the carboxylate group (alpha carbon). Amino acids are organic compounds that contain amino (–NH2) and carboxyl (–COOH) functional groups, along with a side chain (R group) specific to each amino acid. L-asparagine is one of 20 proteinogenic amino acids, i.e., the amino acids used in the biosynthesis of proteins. Asparagine is found in all organisms ranging from bacteria to plants to animals. In humans, asparagine is not an essential amino acid, which means that it can be synthesized from central metabolic pathway intermediates in humans and is not required in the diet. The precursor to asparagine is oxaloacetate. Oxaloacetate is converted to aspartate using a transaminase enzyme. This enzyme transfers the amino group from glutamate to oxaloacetate producing alpha-ketoglutarate and aspartate. The enzyme asparagine synthetase produces asparagine, AMP, glutamate, and pyrophosphate from aspartate, glutamine, and ATP. In the asparagine synthetase reaction, ATP is used to activate aspartate, forming beta-aspartyl-AMP. Glutamine donates an ammonium group which reacts with beta-aspartyl-AMP to form asparagine and free AMP. Since the asparagine side chain can make efficient hydrogen bond interactions with the peptide backbone, asparagines are often found near the beginning and end of alpha-helices, and in turn motifs in beta sheets. Its role can be thought as "capping" the hydrogen bond interactions which would otherwise need to be satisfied by the polypeptide backbone. Asparagine also provides key sites for N-linked glycosylation, a modification of the protein chain that is characterized by the addition of carbohydrate chains. A reaction between asparagine and reducing sugars or reactive carbonyls produces acrylamide (acrylic amide) in food when heated to sufficient temperature (i.e. baking). These occur primarily in baked goods such as French fries, potato chips, and roasted coffee. Asparagine was first isolated in 1806 from asparagus juice --hence its name. Asparagine was the first amino acid to be isolated. The smell observed in the urine of some individuals after the consumption of asparagus is attributed to a byproduct of the metabolic breakdown of asparagine, asparagine-amino-succinic-acid monoamide. However, some scientists disagree and implicate other substances in the smell, especially methanethiol. [Spectral] L-Asparagine (exact mass = 132.05349) and L-Aspartate (exact mass = 133.03751) were not completely separated on HPLC under the present analytical conditions as described in AC$XXX. Additionally some of the peaks in this data contains dimers and other unidentified ions. One of the nonessential amino acids. Dietary supplement, nutrient. Widely distributed in the plant kingdom. Isolated from asparagus, beetroot, peas, beans, etc. (-)-Asparagine. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=70-47-3 (retrieved 2024-07-15) (CAS RN: 70-47-3). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). L-Asparagine ((-)-Asparagine) is a non-essential amino acid that is involved in the metabolic control of cell functions in nerve and brain tissue. L-Asparagine ((-)-Asparagine) is a non-essential amino acid that is involved in the metabolic control of cell functions in nerve and brain tissue.

Aconitate [cis or trans]

C6H6O6 (174.0164)

cis-Aconitic acid is an intermediate in the tricarboxylic acid cycle produced by the dehydration of citric acid. The enzyme aconitase (aconitate hydratase; EC 4.2.1.3) catalyses the stereo-specific isomerization of citrate to isocitrate via cis-aconitate in the tricarboxylic acid cycle. Present in apple fruits, maple syrup and passion fruit juice cis-Aconitic acid, also known as (Z)-aconitic acid, plays several important biological roles: Intermediate in the Citric Acid Cycle: cis-Aconitic acid is an intermediate in the tricarboxylic acid (TCA) cycle, also known as the Krebs cycle or citric acid cycle. It is formed from citrate by the enzyme aconitase and is rapidly converted into isocitrate, another key intermediate in the cycle. The TCA cycle is central to cellular respiration, generating energy-rich molecules like NADH and FADH2. Regulation of Aconitase Activity: The conversion of citrate to cis-aconitate and then to isocitrate by aconitase is an important regulatory step in the TCA cycle. This conversion helps in maintaining the balance of the cycle and is influenced by factors like the energy status of the cell. Role in Cholesterol Synthesis: cis-Aconitic acid is also involved in the synthesis of cholesterol. It serves as a precursor for the synthesis of mevalonate, a key intermediate in the cholesterol biosynthesis pathway. Potential Involvement in Disease: Altered metabolism or accumulation of cis-aconitic acid has been associated with certain diseases, including neurodegenerative disorders and cancer. Its role in these conditions is an area of ongoing research. Plant Growth and Development: In plants, cis-aconitic acid has been found to play a role in growth and development, including seed germination and leaf senescence. In summary, cis-aconitic acid is a crucial intermediate in the TCA cycle, impacting energy production and various metabolic pathways in cells. Its role extends to cholesterol synthesis and potentially to various disease processes, highlighting its importance in cellular metabolism and physiology. cis-Aconitic acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=585-84-2 (retrieved 2024-07-01) (CAS RN: 585-84-2). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). (Z)-Aconitic acid (cis-Aconitic acid) is the cis-isomer of Aconitic acid. (Z)-Aconitic acid (cis-Aconitic acid) is an intermediate in the tricarboxylic acid cycle produced by the dehydration of citric acid. (Z)-Aconitic acid (cis-Aconitic acid) is the cis-isomer of Aconitic acid. (Z)-Aconitic acid (cis-Aconitic acid) is an intermediate in the tricarboxylic acid cycle produced by the dehydration of citric acid.

L-Aspartic acid

C4H7NO4 (133.0375)

Aspartic acid (Asp), also known as L-aspartic acid or as aspartate, the name of its anion, is an alpha-amino acid. These are amino acids in which the amino group is attached to the carbon atom immediately adjacent to the carboxylate group (alpha carbon). Amino acids are organic compounds that contain amino (–NH2) and carboxyl (–COOH) functional groups, along with a side chain (R group) specific to each amino acid. L-aspartic acid is one of 20 proteinogenic amino acids, i.e., the amino acids used in the biosynthesis of proteins. Aspartic acid is found in all organisms ranging from bacteria to plants to animals. It is classified as an acidic, charged (at physiological pH), aliphatic amino acid. In humans, aspartic acid is a nonessential amino acid derived from glutamic acid by enzymes using vitamin B6. However, in the human body, aspartate is most frequently synthesized through the transamination of oxaloacetate. A non-essential amino acid is an amino acid that can be synthesized from central metabolic pathway intermediates in humans and is not required in the diet. As its name indicates, aspartic acid is the carboxylic acid analog of asparagine. The D-isomer of aspartic acid (D-aspartic acid) is one of two D-amino acids commonly found in mammals. Aspartic acid was first discovered in 1827 by Auguste-Arthur Plisson and Étienne Ossian Henry by hydrolysis of asparagine, which had been isolated from asparagus juice in 1806. Aspartate has many biochemical roles. It is a neurotransmitter, a metabolite in the urea cycle and it participates in gluconeogenesis. It carries reducing equivalents in the malate-aspartate shuttle, which utilizes the ready interconversion of aspartate and oxaloacetate, which is the oxidized (dehydrogenated) derivative of malic acid. Aspartate donates one nitrogen atom in the biosynthesis of inosine, the precursor to the purine bases which are key to DNA biosynthesis. In addition, aspartic acid acts as a hydrogen acceptor in a chain of ATP synthase. Aspartic acid is a major excitatory neurotransmitter, which is sometimes found to be increased in epileptic and stroke patients. It is decreased in depressed patients and in patients with brain atrophy. As a neurotransmitter, aspartic acid may provide resistance to fatigue and thus lead to endurance, although the evidence to support this idea is not strong (Wikipedia). Aspartic acid supplements are being evaluated. Five grams can raise blood levels. Magnesium and zinc may be natural inhibitors of some of the actions of aspartic acid. Aspartic acid, when chemically coupled with the amino acid D-phenylalanine, is a part of a natural sweetener, aspartame. This sweetener is an advance in artificial sweeteners, and is probably safe in normal doses to all except phenylketonurics. Aspartic acid may be a significant immunostimulant of the thymus and can protect against some of the damaging effects of radiation. Aspartic acid is found in higher abundance in: oysters, luncheon meats, sausage meat, wild game, sprouting seeds, oat flakes, avocado, asparagus, young sugarcane, and molasses from sugar beets. [Spectral] L-Aspartate (exact mass = 133.03751) and Taurine (exact mass = 125.01466) and L-Asparagine (exact mass = 132.05349) were not completely separated on HPLC under the present analytical conditions as described in AC$XXX. Additionally some of the peaks in this data contains dimers and other unidentified ions. [Spectral] L-Aspartate (exact mass = 133.03751) and L-Threonine (exact mass = 119.05824) were not completely separated on HPLC under the present analytical conditions as described in AC$XXX. Additionally some of the peaks in this data contains dimers and other unidentified ions. L-Aspartic acid is is an amino acid, shown to be a suitable proagent for colon-specific agent deliverly. L-Aspartic acid is is an amino acid, shown to be a suitable proagent for colon-specific agent deliverly.

L-Homoserine

C4H9NO3 (119.0582)

L-homoserine, also known as 2-amino-4-hydroxybutanoic acid or isothreonine, is a member of the class of compounds known as L-alpha-amino acids. L-alpha-amino acids are alpha amino acids which have the L-configuration of the alpha-carbon atom. L-homoserine is soluble (in water) and a moderately acidic compound (based on its pKa). L-homoserine can be found in common pea, which makes L-homoserine a potential biomarker for the consumption of this food product. L-homoserine can be found primarily in blood, feces, and urine, as well as in human prostate tissue. L-homoserine exists in all living species, ranging from bacteria to humans. In humans, L-homoserine is involved in the methionine metabolism. L-homoserine is also involved in several metabolic disorders, some of which include glycine n-methyltransferase deficiency, hypermethioninemia, cystathionine beta-synthase deficiency, and methylenetetrahydrofolate reductase deficiency (MTHFRD). Homoserine (also called isothreonine) is an α-amino acid with the chemical formula HO2CCH(NH2)CH2CH2OH. L-Homoserine is not one of the common amino acids encoded by DNA. It differs from the proteinogenic amino acid serine by insertion of an additional -CH2- unit into the backbone. Homoserine, or its lactone form, is the product of a cyanogen bromide cleavage of a peptide by degradation of methionine . Homoserine is a more reactive variant of the amino acid serine. In this variant, the hydroxyl side chain contains an additional CH2 group which brings the hydroxyl group closer to its own carboxyl group, allowing it to chemically react to form a five-membered ring. This occurs at the point that amino acids normally join to their neighbours in a peptide bond. Homoserine is therefore unsuitable for forming proteins and has been eliminated from the repertoire of amino acids used by living things. Homoserine is the final product on the C-terminal end of the N-terminal fragment following a cyanogen bromide cleavage. (wikipedia). Homoserine is also a microbial metabolite. L-Homoserine. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=672-15-1 (retrieved 2024-07-02) (CAS RN: 672-15-1). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). L-Homoserine is a non - protein amino acid, which is an important biosynthetic intermediate of threonine, methionine and lysine. L-Homoserine is a non - protein amino acid, which is an important biosynthetic intermediate of threonine, methionine and lysine.

L-Serine

C3H7NO3 (105.0426)

Serine (Ser) or L-serine is an alpha-amino acid. These are amino acids in which the amino group is attached to the carbon atom immediately adjacent to the carboxylate group (alpha carbon). Amino acids are organic compounds that contain amino (–NH2) and carboxyl (–COOH) functional groups, along with a side chain (R group) specific to each amino acid. L-serine is one of 20 proteinogenic amino acids, i.e., the amino acids used in the biosynthesis of proteins. Serine is found in all organisms ranging from bacteria to plants to animals. It is classified as a polar, uncharged (at physiological pH), aliphatic amino acid. In humans, serine is a nonessential amino acid that can be easily derived from glycine. A non-essential amino acid is an amino acid that can be synthesized from central metabolic pathway intermediates in humans and is not required in the diet. Like all the amino acid building blocks of protein and peptides, serine can become essential under certain conditions, and is thus important in maintaining health and preventing disease. L-Serine may be derived from four possible sources: dietary intake; biosynthesis from the glycolytic intermediate 3-phosphoglycerate; from glycine; and by protein and phospholipid degradation. Little data is available on the relative contributions of each of these four sources of l-serine to serine homoeostasis. It is very likely that the predominant source of l-serine will be very different in different tissues and during different stages of human development. In the biosynthetic pathway, the glycolytic intermediate 3-phosphoglycerate is converted into phosphohydroxypyruvate, in a reaction catalyzed by 3-phosphoglycerate dehydrogenase (3- PGDH; EC 1.1.1.95). Phosphohydroxypyruvate is metabolized to phosphoserine by phosphohydroxypyruvate aminotransferase (EC 2.6.1.52) and, finally, phosphoserine is converted into l-serine by phosphoserine phosphatase (PSP; EC 3.1.3.3). In liver tissue, the serine biosynthetic pathway is regulated in response to dietary and hormonal changes. Of the three synthetic enzymes, the properties of 3-PGDH and PSP are the best documented. Hormonal factors such as glucagon and corticosteroids also influence 3-PGDH and PSP activities in interactions dependent upon the diet. L-serine is the predominant source of one-carbon groups for the de novo synthesis of purine nucleotides and deoxythymidine monophosphate. It has long been recognized that, in cell cultures, L-serine is a conditional essential amino acid, because it cannot be synthesized in sufficient quantities to meet the cellular demands for its utilization. In recent years, L-serine and the products of its metabolism have been recognized not only to be essential for cell proliferation, but also to be necessary for specific functions in the central nervous system. The findings of altered levels of serine and glycine in patients with psychiatric disorders and the severe neurological abnormalities in patients with defects of L-serine synthesis underscore the importance of L-serine in brain development and function. (PMID 12534373). [Spectral] L-Serine (exact mass = 105.04259) and D-2-Aminobutyrate (exact mass = 103.06333) and 4-Aminobutanoate (exact mass = 103.06333) were not completely separated on HPLC under the present analytical conditions as described in AC$XXX. Additionally some of the peaks in this data contains dimers and other unidentified ions. Dietary supplement. L-Serine is found in many foods, some of which are cold cut, mammee apple, coho salmon, and carrot. L-Serine. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=56-45-1 (retrieved 2024-07-01) (CAS RN: 56-45-1). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). L-Serine ((-)-Serine; (S)-Serine), one of the so-called non-essential amino acids, plays a central role in cellular proliferation. L-Serine ((-)-Serine; (S)-Serine), one of the so-called non-essential amino acids, plays a central role in cellular proliferation.

L-Lysine

C6H14N2O2 (146.1055)

Lysine (Lys), also known as L-lysine is an alpha-amino acid. These are amino acids in which the amino group is attached to the carbon atom immediately adjacent to the carboxylate group (alpha carbon). Amino acids are organic compounds that contain amino (–NH2) and carboxyl (–COOH) functional groups, along with a side chain (R group) specific to each amino acid. Lysine is one of 20 proteinogenic amino acids, i.e., the amino acids used in the biosynthesis of proteins. Lysine is found in all organisms ranging from bacteria to plants to animals. It is classified as an aliphatic, positively charged or basic amino acid. In humans, lysine is an essential amino acid, meaning the body cannot synthesize it, and it must be obtained from the diet. Lysine is high in foods such as wheat germ, cottage cheese and chicken. Of meat products, wild game and pork have the highest concentration of lysine. Fruits and vegetables contain little lysine, except avocados. Normal requirements for lysine have been found to be about 8 g per day or 12 mg/kg in adults. Children and infants need more, 44 mg/kg per day for an eleven to-twelve-year old, and 97 mg/kg per day for three-to six-month old. In organisms that synthesise lysine, it has two main biosynthetic pathways, the diaminopimelate and α-aminoadipate pathways, which employ distinct enzymes and substrates and are found in diverse organisms. Lysine catabolism occurs through one of several pathways, the most common of which is the saccharopine pathway. Lysine plays several roles in humans, most importantly proteinogenesis, but also in the crosslinking of collagen polypeptides, uptake of essential mineral nutrients, and in the production of carnitine, which is key in fatty acid metabolism. Lysine is also often involved in histone modifications, and thus, impacts the epigenome. Lysine is highly concentrated in muscle compared to most other amino acids. Normal lysine metabolism is dependent upon many nutrients including niacin, vitamin B6, riboflavin, vitamin C, glutamic acid and iron. Excess arginine antagonizes lysine. Several inborn errors of lysine metabolism are known, such as cystinuria, hyperdibasic aminoaciduria I, lysinuric protein intolerance, propionic acidemia, and tyrosinemia I. Most are marked by mental retardation with occasional diverse symptoms such as absence of secondary sex characteristics, undescended testes, abnormal facial structure, anemia, obesity, enlarged liver and spleen, and eye muscle imbalance. Lysine also may be a useful adjunct in the treatment of osteoporosis. Although high protein diets result in loss of large amounts of calcium in urine, so does lysine deficiency. Lysine may be an adjunct therapy because it reduces calcium losses in urine. Lysine deficiency also may result in immunodeficiency. Requirements for lysine are probably increased by stress. Lysine toxicity has not occurred with oral doses in humans. Lysine dosages are presently too small and may fail to reach the concentrations necessary to prove potential therapeutic applications. Lysine metabolites, amino caproic acid and carnitine have already shown their therapeutic potential. Thirty grams daily of amino caproic acid has been used as an initial daily dose in treating blood clotting disorders, indicating that the proper doses of lysine, its precursor, have yet to be used in medicine. Low lysine levels have been found in patients with Parkinsons, hypothyroidism, kidney disease, asthma and depression. The exact significance of these levels is unclear, yet lysine therapy can normalize the level and has been associated with improvement of some patients with these conditions. Abnormally elevated hydroxylysines have been found in virtually all chronic degenerative diseases and those treated with coumadin therapy. The levels of this stress marker may be improved by high doses of vitamin C. Lysine is particularly useful in therapy for marasmus (wasting) (http://www.dcnutrition.com). Lysine has also been sh... [Spectral] L-Lysine (exact mass = 146.10553) and Carnosine (exact mass = 226.10659) were not completely separated on HPLC under the present analytical conditions as described in AC$XXX. Additionally some of the peaks in this data contains dimers and other unidentified ions. Dietary supplement, nutrient. Found widely in protein hydrolysates, e.g. casein, egg albumen, fibrin, gelatin, beet molasses. Flavouring agent for a variety of foods L-Lysine. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=56-87-1 (retrieved 2024-07-01) (CAS RN: 56-87-1). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). L-lysine is an essential amino acid[1][2] with important roles in connective tissues and carnitine synthesis, energy production, growth in children, and maintenance of immune functions[2]. L-lysine is an essential amino acid[1][2] with important roles in connective tissues and carnitine synthesis, energy production, growth in children, and maintenance of immune functions[2].

L-Ornithine

C5H12N2O2 (132.0899)

Ornithine, also known as (S)-2,5-diaminopentanoic acid or ornithine, (L)-isomer, is a member of the class of compounds known as L-alpha-amino acids. L-alpha-amino acids are alpha amino acids which have the L-configuration of the alpha-carbon atom. Ornithine is soluble (in water) and a moderately acidic compound (based on its pKa). Ornithine can be found in a number of food items such as pine nut, lingonberry, turnip, and cassava, which makes ornithine a potential biomarker for the consumption of these food products. Ornithine can be found primarily in most biofluids, including urine, cerebrospinal fluid (CSF), feces, and saliva, as well as throughout most human tissues. Ornithine exists in all living species, ranging from bacteria to humans. In humans, ornithine is involved in few metabolic pathways, which include arginine and proline metabolism, glycine and serine metabolism, spermidine and spermine biosynthesis, and urea cycle. Ornithine is also involved in several metabolic disorders, some of which include ornithine transcarbamylase deficiency (OTC deficiency), prolidase deficiency (PD), citrullinemia type I, and arginine: glycine amidinotransferase deficiency (AGAT deficiency). Moreover, ornithine is found to be associated with cystinuria, alzheimers disease, leukemia, and uremia. Ornithine is a non-carcinogenic (not listed by IARC) potentially toxic compound. Ornithine is a drug which is used for nutritional supplementation, also for treating dietary shortage or imbalance. it has been claimed that ornithine improves athletic performance, has anabolic effects, has wound-healing effects, and is immuno-enhancing. Ornithine is a non-proteinogenic amino acid that plays a role in the urea cycle. Ornithine is abnormally accumulated in the body in ornithine transcarbamylase deficiency. The radical is ornithyl . L-Ornithine is metabolised to L-arginine. L-arginine stimulates the pituitary release of growth hormone. Burns or other injuries affect the state of L-arginine in tissues throughout the body. As De novo synthesis of L-arginine during these conditions is usually not sufficient for normal immune function, nor for normal protein synthesis, L-ornithine may have immunomodulatory and wound-healing activities under these conditions (by virtue of its metabolism to L-arginine) (DrugBank). Chronically high levels of ornithine are associated with at least 9 inborn errors of metabolism including: Cystathionine Beta-Synthase Deficiency, Hyperornithinemia with gyrate atrophy, Hyperornithinemia-hyperammonemia-homocitrullinuria syndrome, Hyperornithinemia-hyperammonemia-homocitrullinuria syndrome, Hyperprolinemia Type II, Lysinuric Protein Intolerance, Ornithine Aminotransferase Deficiency, Ornithine Transcarbamylase Deficiency and Prolinemia Type II (T3DB). Ornithine or L-ornithine, also known as (S)-2,5-diaminopentanoic acid is a member of the class of compounds known as L-alpha-amino acids. L-alpha-amino acids are alpha amino acids which have the L-configuration of the alpha-carbon atom. L-ornithine is soluble (in water) and a moderately basic compound. Ornithine is a non-proteinogenic amino acid that plays a role in the urea cycle. It is considered to be a non-essential amino acid. A non-essential amino acid is an amino acid that can be synthesized from central metabolic pathway intermediates in humans and is not required in the diet. L-Ornithine is one of the products of the action of the enzyme arginase on L-arginine, creating urea. Therefore, ornithine is a central part of the urea cycle, which allows for the disposal of excess nitrogen. Outside the human body, L-ornithine is abundant in a number of food items such as wild rice, brazil nuts, common oregano, and common grapes. L-ornithine can be found throughout most human tissues; and in most biofluids, some of which include blood, urine, cerebrospinal fluid (CSF), sweat, saliva, and feces. L-ornithine exists in all living species, from bacteria to plants to humans. L-Ornithine is also a precursor of citrulline and arginine. In order for ornithine that is produced in the cytosol to be converted to citrulline, it must first cross the inner mitochondrial membrane into the mitochondrial matrix where it is carbamylated by the enzyme known as ornithine transcarbamylase. This transfer is mediated by the mitochondrial ornithine transporter (SLC25A15; AF112968; ORNT1). Mutations in the mitochondrial ornithine transporter result in hyperammonemia, hyperornithinemia, homocitrullinuria (HHH) syndrome, a disorder of the urea cycle (PMID: 16256388). The pathophysiology of the disease may involve diminished ornithine transport into mitochondria, resulting in ornithine accumulation in the cytoplasm and reduced ability to clear carbamoyl phosphate and ammonia loads (OMIM 838970). In humans, L-ornithine is involved in a number of other metabolic disorders, some of which include, ornithine transcarbamylase deficiency (OTC deficiency), argininemia, and guanidinoacetate methyltransferase deficiency (GAMT deficiency). Ornithine is abnormally accumulated in the body in ornithine transcarbamylase deficiency. Moreover, Ornithine is found to be associated with cystinuria, hyperdibasic aminoaciduria I, and lysinuric protein intolerance, which are inborn errors of metabolism. It has been claimed that ornithine improves athletic performance, has anabolic effects, has wound-healing effects, and is immuno-enhancing. L-Ornithine. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=70-26-8 (retrieved 2024-07-01) (CAS RN: 70-26-8). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). L-Ornithine ((S)-2,5-Diaminopentanoic acid) is a non-proteinogenic amino acid, is mainly used in urea cycle removing excess nitrogen in vivo. L-Ornithine shows nephroprotective[1][2]. L-Ornithine ((S)-2,5-Diaminopentanoic acid) is a non-proteinogenic amino acid, is mainly used in urea cycle removing excess nitrogen in vivo. L-Ornithine shows nephroprotective[1][2].

Orotic acid

C5H4N2O4 (156.0171)

Orotic acid is classified as a pyrimidinemonocarboxylic acid. That is it is a uracil bearing a carboxy substituent at position C-6. It is also classified as a pyrimidinedione and a carboxylic acid. Orotic acid is a minor dietary constituent. Indeed, until it was realized that it could be synthesized by humans, orotic acid was known as vitamin B-13. The richest dietary sources of orotic acid are cows milk and other dairy products as well as root vegetables such as carrots and beets. Dietary intake probably contributes to a basal rate of orotic acid excretion in urine because fasting decreases excretion by ~50\\\\%. However, it is now apparent that most urinary orotic acid is synthesized in the body, where it arises as an intermediate in the pathway for the synthesis of pyrimidine nucleotides. Orotic acid is converted to UMP by UMP synthase, a multifunctional protein with both orotate phosphoribosyltransferase and orotidylate decarboxylase activity. The most frequently observed inborn error of pyrimidine nucleotide synthesis is a mutation of the multifunctional protein UMP synthase (UMP synthase deficiency or orotic aciduria). This disorder prevents the conversion of orotic acid to UMP, and thus to other pyrimidines. As a result, plasma orotic acid accumulates to high concentrations, and increased quantities appear in the urine. Indeed, urinary orotic acid is so markedly increased in individuals harboring a mutation in UMP synthase that orotic acid crystals can form in the urine. The urinary concentration of orotic acid in individuals suffering from orotic aciduria can be of the order of millimoles of orotic acid per millimole creatinine. By comparison, the urinary level in unaffected individuals is ~ 1 ¬umol/mmol creatinine (PMID: 17513443). Orotic aciduria is characterized by megaloblastic anemia and orotic acid crystalluria that is frequently associated with some degree of physical and mental retardation. These features respond to appropriate pyrimidine replacement therapy and most cases appear to have a good prognosis. When present in sufficiently high levels, orotic acid can act as an acidogen and a metabotoxin. An acidogen is an acidic compound that induces acidosis, which has multiple adverse effects on many organ systems. A metabotoxin is an endogenously produced metabolite that causes adverse health effects at chronically high levels. Chronically high levels of orotic acid are associated with at least seven inborn errors of metabolism, including argininemia, LPI syndrome (lysinuric protein intolerance), hyperornithinemia-hyperammonemia-homocitrullinuria (HHH), OTC deficiency, citrullinemia type I, purine nucleoside phosphorylase deficiency, and orotic aciduria. Orotic acid is broadly classified as an organic acid. Abnormally high levels of organic acids in the blood (organic acidemia), urine (organic aciduria), the brain, and other tissues lead to general metabolic acidosis. Acidosis typically occurs when arterial pH falls below 7.35. In infants with acidosis, the initial symptoms include poor feeding, vomiting, loss of appetite, weak muscle tone (hypotonia), and lack of energy (lethargy). These can progress to heart abnormalities, seizures, coma, and possibly death. These are also the characteristic symptoms of the untreated IEMs mentioned above. Many affected children with organic acidemias experience intellectual disability or delayed development. In adults, acidosis or acidemia is characterized by headaches, confusion, feeling tired, tremors, sleepiness, and seizures. Orotic acid, also known as orotate or orotsaeure, is a member of the class of compounds known as pyrimidinecarboxylic acids. Pyrimidinecarboxylic acids are pyrimidines with a structure containing a carboxyl group attached to the pyrimidine ring. Orotic acid is slightly soluble (in water) and a moderately acidic compound (based on its pKa). Orotic acid can be synthesized from uracil. Orotic acid can also be synthesized into dihydroorotic acid. Orotic acid can be found in a number of food items such as okra, atlantic herring, black chokeberry, and prunus (cherry, plum), which makes orotic acid a potential biomarker for the consumption of these food products. Orotic acid can be found primarily in most biofluids, including saliva, amniotic fluid, blood, and urine, as well as in human liver and pancreas tissues. Orotic acid exists in all living species, ranging from bacteria to humans. In humans, orotic acid is involved in the pyrimidine metabolism. Orotic acid is also involved in few metabolic disorders, which include beta ureidopropionase deficiency, dihydropyrimidinase deficiency, MNGIE (mitochondrial neurogastrointestinal encephalopathy), and UMP synthase deficiency (orotic aciduria). Moreover, orotic acid is found to be associated with hyperornithinemia-hyperammonemia-homocitrullinuria, orotic aciduria I, ornithine transcarbamylase deficiency, and n-acetylglutamate synthetase deficiency. Orotic acid is a non-carcinogenic (not listed by IARC) potentially toxic compound. The compound is manufactured in the body via a mitochondrial enzyme, dihydroorotate dehydrogenase or a cytoplasmic enzyme of pyrimidine synthesis pathway. It is sometimes used as a mineral carrier in some dietary supplements (to increase their bioavailability), most commonly for lithium orotate . Chronically high levels of orotic acid are associated with at least 4 inborn errors of metabolism including: Argininemia, Citrullinemia Type I, Purine nucleoside phosphorylase deficiency and Orotic Aciduria (T3DB). Orotic acid (6-Carboxyuracil), a precursor in biosynthesis of pyrimidine nucleotides and RNA, is released from the mitochondrial dihydroorotate dehydrogenase (DHODH) for conversion to UMP by the cytoplasmic UMP synthase enzyme. Orotic acid is a marker for measurement in routine newborn screening for urea cycle disorders. Orotic acid can induce hepatic steatosis and hepatomegaly in rats[1][2][3].

Uric acid

C5H4N4O3 (168.0283)

Uric acid is a heterocyclic purine derivative that is the final oxidation product of purine metabolism. It is a weak acid distributed throughout the extracellular fluid as sodium urate. Uric acid is produced by the enzyme xanthine oxidase, which oxidizes oxypurines such as xanthine into uric acid. In most mammals, except humans and higher primates, the enzyme uricase further oxidizes uric acid to allantoin. Interestingly, during the Miocene epoch (~15-20 million years ago), two distinct mutations in the primate genome occurred that led to a nonfunctioning uricase gene. Consequently, humans, apes, and certain New World monkeys have much higher uric acid levels (>120 μM) compared with other mammals (<<120 uM). The loss of uricase in higher primates parallels the similar loss of the ability to synthesize ascorbic acid vitamin C. This may be because in higher primates uric acid partially replaces ascorbic acid. Like ascorbic acid, uric acid is an antioxidant. In fact, in primates, uric acid is the major antioxidant in serum and is thought to be a major factor in lengthening life-span and decreasing age-specific cancer rates in humans and other primates (PMID: 6947260). Uric acid is also the end product of nitrogen metabolism in birds and reptiles. In these animal species, it is excreted in feces as a dry mass. In humans and other mammals, the amount of urate in the blood depends on the dietary intake of purines, the level of endogenous urate biosynthesis, and the rate of urate excretion. Several kidney urate transporters are involved in the regulation of plasma urate levels. These include the urate transporter 1 (URAT1), which controls the reabsorption of urate as well as a number of organic ion transporters (OAT), such as OAT1 and OAT3, and the ATP-dependent urate export transporter MRP4. URAT1 is believed to be most critical in the regulation of plasma urate levels. (PMID: 17890445) High levels of plasma uric acid lead to a condition called hyperuricemia while low levels are associated with a condition called hypouricemia. Hyperuricemia has been defined as a uric acid concentration greater than 380 μM, while hypouricemia is generally defined as a urate concentration of less than 120 μM. Hyperuricemia can arise from a number of factors, including both acute and chronic causes. Acute causes of hyperuricemia include the intake of large amounts of alcohol, tumor lysis syndrome and a diet that is rich in purines or proteins. Chronic hyperuricemia can arise from a reduction in the kidney’s glomerular filtration rate, a decrease in the excretion of urate or an increase in overall tubular absorption in the kidneys. Hyperuricemia has been linked to a number of diseases and conditions, including gout, hypertension, cardiovascular disease, myocardial infarction, stroke, and renal disease. Uric acid has been identified as a uremic toxin according to the European Uremic Toxin Working Group (PMID: 22626821). Many of the causes of hyperuricemia are correctable either with lifestyle changes or drugs. Lifestyle changes include reducing weight and reducing the consumption of protein, purines, and alcohol. There are two kinds of drugs that can be used to treat chronic hyperuricemia. Xanthine oxidase inhibitors, such as allopurinol, inhibit the production of urate by blocking urate synthesis. Alternately, uricosuric drugs, such as probenecid, sulfinpyrazone, and benzpromarone, are used to reduce the serum urate concentration through the inhibition of the URAT1 transporter. (PMID: 17890445). Uric acid (especially crystalline uric acid) is also thought to be an essential initiator and amplifier of allergic inflammation for asthma and peanut allergies (PMID: 21474346). Uric acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=69-93-2 (retrieved 2024-07-17) (CAS RN: 69-93-2). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). Uric acid, scavenger of oxygen radical, is a very important antioxidant that help maintains the stability of blood pressure and antioxidant stress. Uric acid can remove reactive oxygen species (ROS) such as singlet oxygen and peroxynitrite, inhibiting lipid peroxidation[1][2]. Uric acid, scavenger of oxygen radical, is a very important antioxidant that help maintains the stability of blood pressure and antioxidant stress. Uric acid can remove reactive oxygen species (ROS) such as singlet oxygen and peroxynitrite, inhibiting lipid peroxidation[1][2].

Threonic acid

C4H8O5 (136.0372)

Threonic acid, also known as threonate, belongs to the class of organic compounds known as sugar acids and derivatives. Sugar acids and derivatives are compounds containing a saccharide unit which bears a carboxylic acid group. Threonic acid is a sugar acid derived from threose. The L-isomer is a metabolite of ascorbic acid (vitamin C). One study suggested that because L-threonate inhibits DKK1 expression in vitro, it may have potential in the treatment of androgenic alopecia (PMID:21034532). Threonic acid is probably derived from glycated proteins or from degradation of ascorbic acid. It is a normal component in aqueous humour and blood (PMID:10420182). Threonic acid is a substrate of L-threonate 3-dehydrogenase (EC 1.1.1.129) in the ascorbate and aldarate metabolism pathway (KEGG). It has been found to be a microbial metabolite (PMID:20615997). L-threonic acid, also known as L-threonate or L-threonic acid magnesium salt, belongs to sugar acids and derivatives class of compounds. Those are compounds containing a saccharide unit which bears a carboxylic acid group. L-threonic acid is soluble (in water) and a weakly acidic compound (based on its pKa). L-threonic acid can be found in a number of food items such as buffalo currant, yam, purslane, and bayberry, which makes L-threonic acid a potential biomarker for the consumption of these food products. L-threonic acid can be found primarily in blood. Threonic acid is a sugar acid derived from threose. The L-isomer is a metabolite of ascorbic acid (vitamin C). One study suggested that because L-threonate inhibits DKK1 expression in vitro, it may have potential in treatment of androgenic alopecia .

Erythritol

C4H10O4 (122.0579)

Erythritol is a sugar alcohol (or polyol), used as a food additive and sugar substitute. It is naturally occurring and is made from corn using enzymes and fermentation. Its formula is C4H10O4, or HO(CH2)(CHOH)2(CH2)OH; specifically, one particular stereoisomer with that formula. Erythritol is 60–70\\\\\% as sweet as sucrose (table sugar), yet it is almost noncaloric and does not affect blood sugar or cause tooth decay. Erythritol occurs widely in nature and has been found to occur naturally in several foods including wine, sake, beer, watermelon, pear, grape, and soy sauce. Evidence indicates that erythritol also exists endogenously in the tissues and body fluids of humans and animals. Erythritol is absorbed from the proximal intestine by passive diffusion in a manner similar to that of many low molecular weight organic molecules which do not have associated active transport systems. The rate of absorption is related to their molecular size. It passes through the intestinal membranes at a faster rate than larger molecules such as mannitol or glucose. In diabetics, erythritol has also been shown to be rapidly absorbed and excreted unchanged in the urine. Following absorption, ingested erythritol is rapidly distributed throughout the body and has been reported to occur in hepatocytes, pancreatic cells, and vascular smooth muscle cells. Erythritol also has been reported to cross the human placenta and to pass slowly from the plasma into the brain and cerebrospinal fluid (PMID:9862657). Erythritol is found to be associated with ribose-5-phosphate isomerase deficiency, which is an inborn error of metabolism. Bulk sweetener with good taste props. Not metabolised, excreted unchanged in urine. Less sweet than sucrose. Use not yet permitted in most countries (1997). GRAS status for use as a sweetener, thickener, stabiliser, humectant, etc. in food meso-Erythritol is a sugar alcohol that occurs naturally in a variety of foods (e.g., pear, watermelon), is 60-80\\% as sweet as sucrose, and is an approved low-calorie sweetener food additive[1]. meso-Erythritol is a sugar alcohol that occurs naturally in a variety of foods (e.g., pear, watermelon), is 60-80\% as sweet as sucrose, and is an approved low-calorie sweetener food additive[1].

Glucaric acid

C6H10O8 (210.0376)

Glucaric acid, also known as glucarate or D-saccharic acid, belongs to the class of organic compounds known as glucuronic acid derivatives. Glucuronic acid derivatives are compounds containing a glucuronic acid moiety (or a derivative), which consists of a glucose moiety with the C6 carbon oxidized to a carboxylic acid. Glucaric acid is a sugar acid derived from D-glucose in which both the aldehydic carbon atom and the carbon atom bearing the primary hydroxyl group are oxidized to carboxylic acid groups. D-glucaric acid is found in fruits, vegetables, and mammals. The highest concentrations of glucaric acid are found in grapefruits, apples, oranges, and cruciferous vegetables (PMID: 18772850). Glucaric acid is produced through the oxidation of glucose. Cytochrome P450 is thought to be responsible for the production of D-glucaric acid in vivo (PMID: 3779687). In mammals, D-glucaric acid and D-glucaro-l,4-lactone are also known end-products of the D-glucuronic acid pathway (PMID: 18772850). Glucaric is available as a dietary supplement in the form of calcium D-glucarate and has been studied for therapeutic purposes including cholesterol reduction and cancer chemotherapy (PMID: 9101079). D-Glucaric acid has a potential use as a building block for a number of polymers, including new nylons and hyperbranched polyesters. D-glucaric acid produced from D-glucose has been successfully utilized to produce a hydroxylated nylon. A sugar acid derived from D-glucose in which both the aldehydic carbon atom and the carbon atom bearing the primary hydroxyl group are oxidized to carboxylic acid groups. [HMDB] KEIO_ID S025

Tyramine

C8H11NO (137.0841)

Tyramine is a monoamine compound derived from the amino acid tyrosine. Tyramine is metabolized by the enzyme monoamine oxidase. In foods, it is often produced by the decarboxylation of tyrosine during fermentation or decay. Foods containing considerable amounts of tyramine include fish, chocolate, alcoholic beverages, cheese, soy sauce, sauerkraut, and processed meat. A large dietary intake of tyramine can cause an increase in systolic blood pressure of 30 mmHg or more. Tyramine acts as a neurotransmitter via a G protein-coupled receptor with high affinity for tyramine called TA1. The TA1 receptor is found in the brain as well as peripheral tissues including the kidney. An indirect sympathomimetic, Tyramine can also serve as a substrate for adrenergic uptake systems and monoamine oxidase so it prolongs the actions of adrenergic transmitters. It also provokes transmitter release from adrenergic terminals. Tyramine is a biomarker for the consumption of cheese [Spectral] Tyramine (exact mass = 137.08406) and L-Methionine (exact mass = 149.05105) were not completely separated on HPLC under the present analytical conditions as described in AC$XXX. Additionally some of the peaks in this data contains dimers and other unidentified ions. [Spectral] Tyramine (exact mass = 137.08406) and Glutathione (exact mass = 307.08381) were not completely separated on HPLC under the present analytical conditions as described in AC$XXX. Additionally some of the peaks in this data contains dimers and other unidentified ions. D018377 - Neurotransmitter Agents > D014179 - Neurotransmitter Uptake Inhibitors > D018759 - Adrenergic Uptake Inhibitors D018373 - Peripheral Nervous System Agents > D001337 - Autonomic Agents > D013566 - Sympathomimetics Acquisition and generation of the data is financially supported in part by CREST/JST. D018377 - Neurotransmitter Agents > D018663 - Adrenergic Agents IPB_RECORD: 267; CONFIDENCE confident structure CONFIDENCE standard compound; INTERNAL_ID 5105 D049990 - Membrane Transport Modulators KEIO_ID T008 Tyramine is an amino acid that helps regulate blood pressure. Tyramine occurs naturally in the body, and it's found in certain foods[1]. Tyramine is an amino acid that helps regulate blood pressure. Tyramine occurs naturally in the body, and it's found in certain foods[1].

Glucose

C6H12O6 (180.0634)

Glucose, also known as D-glucose or dextrose, is a member of the class of compounds known as hexoses. Hexoses are monosaccharides in which the sugar unit is a is a six-carbon containing moiety. Glucose contains an aldehyde group and is therefore referred to as an aldohexose. The glucose molecule can exist in an open-chain (acyclic) and ring (cyclic) form, the latter being the result of an intramolecular reaction between the aldehyde C atom and the C-5 hydroxyl group to form an intramolecular hemiacetal. In aqueous solution, both forms are in equilibrium and at pH 7 the cyclic one is predominant. Glucose is a neutral, hydrophilic molecule that readily dissolves in water. It exists as a white crystalline powder. Glucose is the primary source of energy for almost all living organisms. As such, it is the most abundant monosaccharide and the most widely used aldohexose in living organisms. When not circulating freely in blood (in animals) or resin (in plants), glucose is stored as a polymer. In plants it is mainly stored as starch and amylopectin and in animals as glycogen. Glucose is produced by plants through the photosynthesis using sunlight, water and carbon dioxide where it is used as an energy and a carbon source Glucose is particularly abundant in fruits and other parts of plants in its free state. Foods that are particularly rich in glucose are honey, agave, molasses, apples (2g/100g), grapes (8g/100g), oranges (8.5g/100g), jackfruit, dried apricots, dates (32 g/100g), bananas (5.8 g/100g), grape juice, sweet corn, Glucose is about 75\\\\% as sweet as sucrose and about 50\\\\% as sweet as fructose. Sweetness is detected through the binding of sugars to the T1R3 and T1R2 proteins, to form a G-protein coupled receptor that is the sweetness receptor in mammals. Glucose was first isolated from raisins in 1747 by the German chemist Andreas Marggraf. It was discovered in grapes by Johann Tobias Lowitz in 1792 and recognized as different from cane sugar (sucrose). Industrially, glucose is mainly used for the production of fructose and in the production of glucose-containing foods. In foods, it is used as a sweetener, humectant, to increase the volume and to create a softer mouthfeel. Various sources of glucose, such as grape juice (for wine) or malt (for beer), are used for fermentation to ethanol during the production of alcoholic beverages. Glucose is found in many plants as glucosides. A glucoside is a glycoside that is derived from glucose. Glucosides are common in plants, but rare in animals. Glucose is produced when a glucoside is hydrolyzed by purely chemical means or decomposed by fermentation or enzymes. Glucose can be obtained by the hydrolysis of carbohydrates such as milk sugar (lactose), cane sugar (sucrose), maltose, cellulose, and glycogen. Glucose is a building block of the disaccharides lactose and sucrose (cane or beet sugar), of oligosaccharides such as raffinose and of polysaccharides such as starch and amylopectin, glycogen or cellulose. For most animals, while glucose is normally obtained from the diet, it can also be generated via gluconeogenesis. Gluconeogenesis is a metabolic pathway that results in the generation of glucose from certain non-carbohydrate carbon substrates. Gluconeogenesis is a ubiquitous process, present in plants, animals, fungi, bacteria, and other microorganisms. In vertebrates, gluconeogenesis takes place mainly in the liver and, to a lesser extent, in the cortex of the kidneys. In humans the main gluconeogenic precursors are lactate, glycerol (which is a part of the triacylglycerol molecule), alanine and glutamine. B - Blood and blood forming organs > B05 - Blood substitutes and perfusion solutions > B05C - Irrigating solutions V - Various > V04 - Diagnostic agents > V04C - Other diagnostic agents > V04CA - Tests for diabetes V - Various > V06 - General nutrients > V06D - Other nutrients > V06DC - Carbohydrates COVID info from clinicaltrial, clinicaltrials, clinical trial, clinical trials D000074385 - Food Ingredients > D005503 - Food Additives D010592 - Pharmaceutic Aids > D005421 - Flavoring Agents CONFIDENCE standard compound; INTERNAL_ID 226 KEIO_ID G002 Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS alpha-D-glucose is an endogenous metabolite. alpha-D-glucose is an endogenous metabolite.

Gluconolactone

C6H10O6 (178.0477)

Gluconolactone, also known as glucono-delta-lactone or GDL (gluconate), belongs to the class of organic compounds known as gluconolactones. These are polyhydroxy acids (PHAs) containing a gluconolactone molecule, which is characterized by a tetrahydropyran substituted by three hydroxyl groups, one ketone group, and one hydroxymethyl group. Gluconolactone is a lactone of D-gluconic acid. Gluconolactone can be produced by enzymatic oxidation of D-glucose via the enzyme glucose oxidase. It is a fundamental metabolite found in all organisms ranging from bacteria to plants to animals. Gluconolactone has metal chelating, moisturizing and antioxidant activities. Its ability in free radicals scavenging accounts for its antioxidant properties. Gluconolactone, is also used as a food additive with the E-number E575. In foods it is used as a sequestrant, an acidifier or a curing, pickling, or leavening agent. Gluconolactone is also used as a coagulant in tofu processing. Gluconolactone is widely used as a skin exfoliant in cosmetic products, where it is noted for its mild exfoliating and hydrating properties. Pure gluconolactone is a white odorless crystalline powder. It is pH-neutral, but hydrolyses in water to gluconic acid which is acidic, adding a tangy taste to foods. Gluconic acid has roughly a third of the sourness of citric acid. One gram of gluconolactone yields roughly the same amount of metabolic energy as one gram of sugar. Food additive; uses include acidifier, pH control agent, sequestrant C26170 - Protective Agent > C275 - Antioxidant D-(+)-Glucono-1,5-lactone is a polyhydroxy (PHA) that is capable of metal chelating, moisturizing and antioxidant activity.

Spermidine

C7H19N3 (145.1579)

Spermidine, also known as SPD, belongs to the class of organic compounds known as dialkylamines. These are organic compounds containing a dialkylamine group, characterized by two alkyl groups bonded to the amino nitrogen. Abnormal bleeding, such as bleeding spontaneously or profusely from a very minor injury can also occur. Spermidine exists in all living species, ranging from bacteria to humans. Within humans, spermidine participates in a number of enzymatic reactions. In particular, 5-methylthioadenosine and spermidine can be biosynthesized from S-adenosylmethioninamine and putrescine by the enzyme spermidine synthase. In addition, S-adenosylmethioninamine and spermidine can be converted into 5-methylthioadenosine and spermine through the action of the enzyme spermine synthase. In humans, spermidine is involved in spermidine and spermine biosynthesis. Outside of the human body, spermidine is found, on average, in the highest concentration within cow milk and oats. Spermidine has also been detected, but not quantified in several different foods, such as common chokecherries, watercress, agars, strawberry guava, and bog bilberries. This could make spermidine a potential biomarker for the consumption of these foods. Spermidine is consideres as an uremic toxine. Increased levels of uremic toxins can stimulate the production of reactive oxygen species. Chronic exposure to uremic toxins can lead to a number of conditions including renal damage, chronic kidney disease and cardiovascular disease. As a uremic toxin, this compound can cause uremic syndrome. Uremic toxins such as spermidine are actively transported into the kidneys via organic ion transporters (especially OAT3). Constituent of meat products. Isol from the edible shaggy ink cap mushroom (Coprinus comatus) and from commercial/household prepared sauerkraut COVID info from clinicaltrial, clinicaltrials, clinical trial, clinical trials IPB_RECORD: 269; CONFIDENCE confident structure CONFIDENCE standard compound; INTERNAL_ID 220 KEIO_ID S003 Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS Spermidine maintains cell membrane stability, increases antioxidant enzymes activities, improving photosystem II (PSII), and relevant gene expression. Spermidine significantly decreases the H2O2 and O2.- contents[1]. Spermidine maintains cell membrane stability, increases antioxidant enzymes activities, improving photosystem II (PSII), and relevant gene expression. Spermidine significantly decreases the H2O2 and O2.- contents[1].

L-Alanine

C3H7NO2 (89.0477)

Alanine (Ala), also known as L-alanine is an alpha-amino acid. These are amino acids in which the amino group is attached to the carbon atom immediately adjacent to the carboxylate group (alpha carbon). Amino acids are organic compounds that contain amino (–NH2) and carboxyl (–COOH) functional groups, along with a side chain (R group) specific to each amino acid. L-alanine is one of 20 proteinogenic amino acids, i.e., the amino acids used in the biosynthesis of proteins. Alanine is found in all organisms ranging from bacteria to plants to animals. It is classified as an aliphatic, non-polar amino acid. In humans, alanine is a non-essential amino acid that can be easily made in the body from either the conversion of pyruvate or the breakdown of the dipeptides carnosine and anserine. Alanine can be also synthesized from branched chain amino acids such as valine, leucine, and isoleucine. Alanine is produced by reductive amination of pyruvate through a two-step process. In the first step, alpha-ketoglutarate, ammonia and NADH are converted by the enzyme known glutamate dehydrogenase to glutamate, NAD+ and water. In the second step, the amino group of the newly-formed glutamate is transferred to pyruvate by an aminotransferase enzyme, regenerating the alpha-ketoglutarate, and converting the pyruvate to alanine. The net result is that pyruvate and ammonia are converted to alanine. In mammals, alanine plays a key role in glucose–alanine cycle between tissues and liver. In muscle and other tissues that degrade amino acids for fuel, amino groups are collected in the form of glutamate by transamination. Glutamate can then transfer its amino group to pyruvate, a product of muscle glycolysis, through the action of alanine aminotransferase, forming alanine and alpha-ketoglutarate. The alanine enters the bloodstream and is transported to the liver. The alanine aminotransferase reaction takes place in reverse in the liver, where the regenerated pyruvate is used in gluconeogenesis, forming glucose which returns to the muscles through the circulation system. Alanine is highly concentrated in muscle and is one of the most important amino acids released by muscle, functioning as a major energy source. Plasma alanine is often decreased when the BCAA (branched-chain amino acids) are deficient. This finding may relate to muscle metabolism. Alanine is highly concentrated in meat products and other high-protein foods like wheat germ and cottage cheese. Alanine is an important participant as well as a regulator of glucose metabolism. Alanine levels parallel blood sugar levels in both diabetes and hypoglycemia, and alanine is reduced in both severe hypoglycemia and the ketosis of diabetes. Alanine is an important amino acid for lymphocyte reproduction and immunity. Alanine therapy has helped dissolve kidney stones in experimental animals. Normal alanine metabolism, like that of other amino acids, is highly dependent upon enzymes that contain vitamin B6. Alanine, like GABA, taurine, and glycine, is an inhibitory neurotransmitter in the brain (http://www.dcnutrition.com/AminoAcids/). L-Alanine. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=56-41-7 (retrieved 2024-07-01) (CAS RN: 56-41-7). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). L-Alanine is a non-essential amino acid, involved in sugar and acid metabolism, increases immunity, and provides energy for muscle tissue, brain, and central nervous system. L-Alanine is a non-essential amino acid, involved in sugar and acid metabolism, increases immunity, and provides energy for muscle tissue, brain, and central nervous system.

4-Hydroxybutyric acid

C4H8O3 (104.0473)

4-Hydroxybutyric acid (also known as gamma-hydroxybutyrate or GHB) is a precursor and a metabolite of gamma-aminobutyric acid (GABA). GHB acts as a central nervous system (CNS) neuromodulator, mediating its effects through GABA and GHB-specific receptors, or by affecting dopamine transmission (PMID: 16620539). GHB occurs naturally in all mammals, but its function remains unknown. GHB is labeled as an illegal drug in most countries, but it also is used as a legal drug (Xyrem) in patients with narcolepsy. It is used illegally (under the street names juice, liquid ecstasy, or G) as an intoxicant for increasing athletic performance and as a date rape drug. In high doses, GHB inhibits the CNS, inducing sleep and inhibiting the respiratory drive. In lower doses, its euphoriant effect predominates (PMID: 17658710). When present in sufficiently high levels, 4-hydroxybutyric acid can act as an acidogen, a neurotoxin, and a metabotoxin. An acidogen is an acidic compound that induces acidosis, which has multiple adverse effects on many organ systems. A neurotoxin is a compound that adversely affects neural cells and tissues. A metabotoxin is an endogenously produced metabolite that causes adverse health effects at chronically high levels. Chronically high levels of 4-hydroxybutyric acid are associated with two inborn errors of metabolism: glutaric aciduria II and succinic semialdehyde dehydrogenase deficiency (SSADH). SSADH deficiency leads to a 30-fold increase of GHB and a 2-4 fold increase of GABA in the brains of patients with SSADH deficiency as compared to normal brain concentrations of the compounds. As an acidogen, 4-hydroxybutyric acid is an organic acid, and abnormally high levels of organic acids in the blood (organic acidemia), urine (organic aciduria), the brain, and other tissues lead to general metabolic acidosis. Acidosis typically occurs when arterial pH falls below 7.35. In infants with acidosis, the initial symptoms include poor feeding, vomiting, loss of appetite, weak muscle tone (hypotonia), and lack of energy (lethargy). These can progress to heart abnormalities, kidney abnormalities, liver damage, seizures, coma, and possibly death. Many affected children with organic acidemias experience intellectual disability or delayed development. These are also the characteristic symptoms of the untreated IEMs mentioned above. Particularly for SSADH deficiency, the most common features observed include developmental delay, hypotonia, and intellectual disability. Nearly half of patients exhibit ataxia, seizures, behaviour problems, and hyporeflexia. In adults, acidosis or acidemia is characterized by headaches, confusion, feeling tired, tremors, sleepiness, and seizures. As a neurotoxin, GHB appears to affect both GABA (a neurotransmitter) signaling and glutamate signaling (another neurotransmitter). Glutamine metabolism may also play a role in the pathophysiology of excessive levels of GHB. High levels of GHB have been shown to depress both the NMDA and AMPA/kainite receptor-mediated functions and may also alter glutamatergic excitatory synaptic transmission as well. 4-Hydroxybutyric acid is a microbial metabolite found in Aeromonas, Escherichia and Pseudomonas (PMID: 19434404). 4-hydroxybutyric acid may cause bradycardia and dyskinesias.

2-Hydroxypyridine

C5H5NO (95.0371)

This colourless crystalline solid is used in peptide synthesis. It is well known to form hydrogen bonded structures somewhat related to the base-pairing mechanism found in RNA and DNA. It is also a classic case of a molecule that exists as tautomers. Some publications only focus one of the two possible patterns, and neglect the influence of the other. For example, to calculation of the energy difference of the two tautomers in a non-polar solution will lead to a wrong result if a large quantity of the substance is on the side of the dimer in an equilibrium. The direct tautomerisation is not energetically favoured, but a dimerisation followed by a double proton transfer and dissociation of the dimer is a self catalytic path from one tautomer to the other. Protic solvents also mediate the proton transfer during the tautomerisation. Acquisition and generation of the data is financially supported in part by CREST/JST. KEIO_ID H021 α-Pyridone is an endogenous metabolite.

Dehydroascorbic acid

C6H6O6 (174.0164)

Dehydroascorbic acid (DHA) is an oxidized form of ascorbic acid (vitamin C). It is actively imported into the endoplasmic reticulum of cells via glucose transporters. It is trapped therein by reduction back to ascorbate by glutathione and other thiols. Dehydroascorbic acid, also known as L-dehydroascorbate or DHAA, belongs to the class of organic compounds known as gamma butyrolactones. Gamma butyrolactones are compounds containing a gamma butyrolactone moiety, which consists of an aliphatic five-member ring with four carbon atoms, one oxygen atom, and bears a ketone group on the carbon adjacent to the oxygen atom. Dehydroascorbic acid has similar biological activity as ascorbic acid. Currently dehydroascorbic acid is an experimental drug with no known approved indications. Dehydroascorbic acid may be a unique E. coli metabolite. Norepinephrine and dehydroascorbic acid can be biosynthesized from dopamine and ascorbic acid through its interaction with the enzyme dopamine beta-hydroxylase. In humans, dehydroascorbic acid is involved in the metabolic disorder called tyrosinemia type I. Concerning dehydroascorbic acids antiviral effect against herpes simplex virus type 1, it is suggested that dehydroascorbic acid acts after replication of viral DNA and prevents the assembly of progeny virus particles. This is important because one study has found that after an ischemic stroke, dehydroascorbic acid has neuroprotective effects by reducing infarct volume, neurological deficits, and mortality. This reaction is reversible, but dehydroascorbic acid can instead undergo irreversible hydrolysis to 2,3-diketogulonic acid. In addition, unlike ascorbic Dehydroascorbic acid acid can cross the blood brain barrier and is then converted to ascorbic acid to enable retention in the brain. Dehydroascorbic acid is made from the oxidation of ascorbic acid. The exact mechanism of action is still being investigated, but some have been elucidated. Both compounds have been shown to have antiviral effects against herpes simplex virus type 1, influenza virus type A and poliovirus type 1 with dehydroascorbic acid having the stronger effect. In the body, both dehydroascorbic acid and ascorbic acid have similar biological activity as antivirals but dehydroascorbic acid also has neuroprotective effects. Even though dehydroascorbic acid and ascorbic acid have similar effects, their mechanism of action seems to be different. Dehydroascorbic acid, also known as dehydroascorbate, is a member of the class of compounds known as gamma butyrolactones. Gamma butyrolactones are compounds containing a gamma butyrolactone moiety, which consists of an aliphatic five-member ring with four carbon atoms, one oxygen atom, and bears a ketone group on the carbon adjacent to the oxygen atom. Dehydroascorbic acid is soluble (in water) and a moderately acidic compound (based on its pKa). Dehydroascorbic acid can be found in a number of food items such as white cabbage, gram bean, mexican groundcherry, and common pea, which makes dehydroascorbic acid a potential biomarker for the consumption of these food products. Dehydroascorbic acid may be a unique E.coli metabolite. Dehydroascorbic acid (DHA) is an oxidized form of ascorbic acid (vitamin C). It is actively imported into the endoplasmic reticulum of cells via glucose transporters. It is trapped therein by reduction back to ascorbate by glutathione and other thiols. The (free) chemical radical semidehydroascorbic acid (SDA) also belongs to the group of oxidized ascorbic acids . D018977 - Micronutrients > D014815 - Vitamins Dehydroascorbic acid, a blood-brain barrier transportable form of vitamin C, mediates potent cerebroprotection in experimental stroke. Dehydroascorbic acid, a blood-brain barrier transportable form of vitamin C, mediates potent cerebroprotection in experimental stroke.

Astragalin

C21H20O11 (448.1006)

Kaempferol 3-O-beta-D-glucoside is a kaempferol O-glucoside in which a glucosyl residue is attached at position 3 of kaempferol via a beta-glycosidic linkage. It has a role as a trypanocidal drug and a plant metabolite. It is a kaempferol O-glucoside, a monosaccharide derivative, a trihydroxyflavone and a beta-D-glucoside. It is a conjugate acid of a kaempferol 3-O-beta-D-glucoside(1-). Astragalin is a natural product found in Xylopia aromatica, Ficus virens, and other organisms with data available. See also: Moringa oleifera leaf (has part). Astragalin is found in alcoholic beverages. Astragalin is present in red wine. It is isolated from many plant species.Astragalin is a 3-O-glucoside of kaempferol. Astragalin is a chemical compound. It can be isolated from Phytolacca americana (the American pokeweed). A kaempferol O-glucoside in which a glucosyl residue is attached at position 3 of kaempferol via a beta-glycosidic linkage. Present in red wine. Isolated from many plant subspecies Acquisition and generation of the data is financially supported in part by CREST/JST. CONFIDENCE standard compound; INTERNAL_ID 173 Astragalin (Astragaline) a flavonoid with anti-inflammatory, antioxidant, anticancer, bacteriostatic activity. Astragalin inhibits cancer cells proliferation and migration, induces apoptosis. Astragalin is orally active and provides nerve and heart protection, and resistance against and osteoporosis[1]. Astragalin (Astragaline) a flavonoid with anti-inflammatory, antioxidant, anticancer, bacteriostatic activity. Astragalin inhibits cancer cells proliferation and migration, induces apoptosis. Astragalin is orally active and provides nerve and heart protection, and resistance against and osteoporosis[1].

Galactinol

C12H22O11 (342.1162)

Acquisition and generation of the data is financially supported in part by CREST/JST.

N-Dodecane

C12H26 (170.2034)

N-Dodecane is found in black walnut. Dodecane is a liquid alkane hydrocarbon with the chemical formula CH3(CH2)10CH3. It is an oily liquid of the paraffin series and has 355 isomers. (Wikipedia). Dodecane is a volatile organic compound found in feces of patients with Clostridium difficile infection, and considered as a potential fecal biomarker of Clostridium difficile infection (PMID: 30986230). Dodecane is a liquid alkane hydrocarbon with the chemical formula CH3(CH2)10CH3. It is an oily liquid of the paraffin series and has 355 isomers. N-Dodecane is found in papaya, black walnut, and garden tomato (variety). D009676 - Noxae > D002273 - Carcinogens

Hydroxylamine

H3NO (33.0215)

Hydroxylamine is a reactive chemical with formula NH2OH. It can be considered a hybrid of ammonia and water due to parallels it shares with each. At room temperature pure NH2OH is ordinarily a white, unstable crystalline, hygroscopic compound; Hydroxylamine is a reactive chemical with formula NH2OH. It can be considered a hybrid of ammonia and water due to parallels it shares with each. At room temperature pure NH2OH is ordinarily a white, unstable crystalline, hygroscopic compound; however it is almost always encountered as an aqueous solution.; NH2OH is an intermediate in biological nitrification. The oxidation of NH3 is mediated by hydroxylamine oxidoreductase (HAO).; however it is almost always encountered as an aqueous solution.; A colorless inorganic compound (HONH2) used in organic synthesis and as a reducing agent, due to its ability to donate nitric oxide.; Hydroxylamine may explode on heating. It is an irritant to the respiratory tract, skin, eyes, and other mucous membranes. It may be absorbed through the skin, is harmful if swallowed, and is a possible mutagen.; NH2OH is an intermediate in the biological nitrification. The oxidation of NH3 is mediated by HAO (hydroxylamine oxidoreductase). Hydroxylamine is found in gram bean and mung bean. Hydroxylamine is a reactive chemical with formula NH2OH. It can be considered a hybrid of ammonia and water due to parallels it shares with each. At room temperature pure NH2OH is ordinarily a white, unstable crystalline, hygroscopic compound; however it is almost always encountered as an aqueous solution. A colorless inorganic compound (HONH2) used in organic synthesis and as a reducing agent, due to its ability to donate nitric oxide. Hydroxylamine may explode on heating. It is an irritant to the respiratory tract, skin, eyes, and other mucous membranes. It may be absorbed through the skin, is harmful if swallowed, and is a possible mutagen. NH2OH is an intermediate in the biological nitrification. The oxidation of NH3 is mediated by HAO (hydroxylamine oxidoreductase).

myo-Inositol 1-phosphate

C6H13O9P (260.0297)

myo-Inositol 1-phosphate, also known as I1P or ins(1)p, belongs to the class of organic compounds known as inositol phosphates. Inositol phosphates are compounds containing a phosphate group attached to an inositol (or cyclohexanehexol) moiety. myo-Inositol 1-phosphate is a metabolite of inositol phosphate metabolism and the phosphatidylinositol signalling system. Inositol phosphatases (EC:3.1.3.25) play a crucial role in the phosphatidylinositol signalling pathway. Expression is substantially higher in the subcortical regions of the brain, most prominently in the caudate. The phosphatidylinositol pathway is thought to be modified by lithium, a commonly prescribed medication in treating bipolar disorder (OMIM: 605922). Myo-inositol 1-phosphate is a metabolite of the Inositol phosphate metabolism and the Phosphatidylinositol signaling system. Inositol phosphatases [EC:3.1.3.25] play a crucial role in the phosphatidylinositol signaling pathway; in brain, the expression is substantially higher in the subcortical regions, most prominently in the caudate. The phosphatidylinositol pathway is thought to be modified by lithium, a commonly prescribed medication in treating bipolar disorder. (OMIM 605922) [HMDB]

Glucose

C6H12O6 (180.0634)

D-Galactose (CAS: 59-23-4) is an aldohexose that occurs naturally in the D-form in lactose, cerebrosides, gangliosides, and mucoproteins. D-Galactose is an energy-providing nutrient and also a necessary basic substrate for the biosynthesis of many macromolecules in the body. Metabolic pathways for D-galactose are important not only for the provision of these pathways but also for the prevention of D-galactose metabolite accumulation. The main source of D-galactose is lactose in the milk of mammals, but it can also be found in some fruits and vegetables. Utilization of D-galactose in all living cells is initiated by the phosphorylation of the hexose by the enzyme galactokinase (E.C. 2.7.1.6) (GALK) to form D-galactose-1-phosphate. In the presence of D-galactose-1-phosphate uridyltransferase (E.C. 2.7.7.12) (GALT) D-galactose-1-phosphate is exchanged with glucose-1-phosphate in UDP-glucose to form UDP-galactose. Glucose-1-phosphate will then enter the glycolytic pathway for energy production. Deficiency of the enzyme GALT in galactosemic patients leads to the accumulation of D-galactose-1-phosphate. Classic galactosemia, a term that denotes the presence of D-galactose in the blood, is the rare inborn error of D-galactose metabolism, diagnosed by the deficiency of the second enzyme of the D-galactose assimilation pathway, GALT, which, in turn, is caused by mutations at the GALT gene (PMID: 15256214, 11020650, 10408771). Galactose in the urine is a biomarker for the consumption of milk. Alpha-D-Pyranose-form of the compound Galactose [CCD]. alpha-D-Galactose is found in many foods, some of which are kelp, fig, spelt, and rape. Galactose. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=59-23-4 (retrieved 2024-07-16) (CAS RN: 59-23-4). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

D-gluconic acid

C6H12O7 (196.0583)

Galactonic acid is a sugar acid that is a metabolic breakdown product of galactose. Galactose dehydrogenase is responsible for converting galactose to galactonolactone, which then spontaneously or enzymatically converts to galactonic acid. Once formed, galactonic acid may enter the pentose phosphate pathway. Galactonic acid is increased in red blood cells of galactosemic patients, due to a galactose-1-phosphate uridyltransferase (GALT) deficiency (PMID: 14680973, OMMBID: The Online Metabolic and Molecular Bases of Inherited Disease, Ch.72). When present in sufficiently high levels, galactonic acid can act as an acidogen and a metabotoxin. An acidogen is an acidic compound that induces acidosis, which has multiple adverse effects on many organ systems. A metabotoxin is an endogenously produced metabolite that causes adverse health effects at chronically high levels. Chronically high levels of galactonic acid are associated with at least two inborn errors of metabolism, including galactosemia and galactosemia type II. Galactonic acid is an organic acid. Abnormally high levels of organic acids in the blood (organic acidemia), urine (organic aciduria), the brain, and other tissues lead to general metabolic acidosis. Acidosis typically occurs when arterial pH falls below 7.35. In infants with acidosis, the initial symptoms include poor feeding, vomiting, loss of appetite, weak muscle tone (hypotonia), and lack of energy (lethargy). These can progress to heart abnormalities, liver abnormalities (jaundice), kidney abnormalities, seizures, coma, and possibly death. These are also the characteristic symptoms of untreated galactosemia. Many affected children with organic acidemias experience intellectual disability or delayed development. High levels of galactonic acid in infants are specifically associated with hepatomegaly (an enlarged liver), cirrhosis, renal failure, cataracts, vomiting, seizure, hypoglycemia, lethargy, brain damage, and ovarian failure. Galactonate is increased in red blood cells of galactosemic patients, due to a galactose-1-phosphate uridyltransferase (GALT) deficiency ((PMID 14680973, OMMBID: The Metabolic and Molecular Bases of Inherited Disease, Ch.72) [HMDB]

Galactaric acid

C6H10O8 (210.0376)

Galactaric acid, also known as mucic acid or galactarate, belongs to the class of organic compounds known as glucuronic acid derivatives. Glucuronic acid derivatives are compounds containing a glucuronic acid moiety (or a derivative), which consists of a glucose moiety with the C6 carbon oxidized to a carboxylic acid. Technically, galactaric acid is an aldaric acid obtained by oxidation of galactose. Galactaric acid exists as a white crystalline powder, which melts at 210 - 230 oC. It is insoluble in alcohol, and nearly insoluble in cold water (1 g/300 mL) but more soluble in hot water (1 g/60 mL).. Galactaric acid exists in all living organisms, ranging from bacteria to plants to humans. In plants, galactaric acid is commonly produced or utilized as an osmorgulator (PMID: 31505987). Galactaric acid has been detected, but not quantified in, several different foods, such as fruits, vegetables and bovine milk. A recent large-scale dietary study found that galactaric acid can serve as a biomarker for long-term dairy intake and for the consumption of carotenoid-rich vegetables (PMID: 33566801). In food production, galactaric acid can be used to replace tartaric acid in self-rising flour or fizzies. Present in ripe fruits of peach and pear. Formed in grapes and grape must by the action of Botrytis cinerea on galacturonic acid Acquisition and generation of the data is financially supported in part by CREST/JST. Mucic acid is an endogenous metabolite.

Gulonate

C6H12O7 (196.0583)

Gulonic acid, also known as gulonate, belongs to the class of organic compounds known as medium-chain hydroxy acids and derivatives. These are hydroxy acids with a 6 to 12 carbon atoms long side chain.It is a gulonic acid having D-configuration. Reduction product of glucuronic acid; oxidation product of l-gulose [HMDB]

DL-Asparagine

C4H8N2O3 (132.0535)

DL-Asparagine is a racemic melange of the Aparagine L and D-enantiomers. DL-Asparagine has been used in growth-media for bacteria-growth[1]. DL-Asparagine is a racemic melange of the Aparagine L and D-enantiomers. DL-Asparagine has been used in growth-media for bacteria-growth[1].

Maltose

C12H22O11 (342.1162)

A glycosylglucose consisting of two D-glucopyranose units connected by an alpha-(1->4)-linkage. D000074385 - Food Ingredients > D005503 - Food Additives D010592 - Pharmaceutic Aids > D005421 - Flavoring Agents A maltose that has beta-configuration at the reducing end anomeric centre. relative retention time with respect to 9-anthracene Carboxylic Acid is 0.054 relative retention time with respect to 9-anthracene Carboxylic Acid is 0.050 D-(+)-Cellobiose is an endogenous metabolite. D-(+)-Cellobiose is an endogenous metabolite. Maltose is a disaccharide formed from two units of glucose joined with an α(1→4) bond, a reducing sugar. Maltose monohydrate can be used as a energy source for bacteria. Maltose is a disaccharide formed from two units of glucose joined with an α(1→4) bond, a reducing sugar. Maltose monohydrate can be used as a energy source for bacteria.

L-Threonine

C4H9NO3 (119.0582)

An optically active form of threonine having L-configuration. MS2 deconvoluted using MS2Dec from all ion fragmentation data, MetaboLights identifier MTBLS1040; AYFVYJQAPQTCCC_STSL_0105_Threonine_8000fmol_180506_S2_LC02_MS02_275; Spectrum acquired as described in Naz et al 2017 PMID 28641411. Preparation and submission to MassBank of North America by Chaleckis R. and Tada I. MS2 deconvoluted using CorrDec from all ion fragmentation data, MetaboLights identifier MTBLS1040; Spectrum acquired as described in Naz et al 2017 PMID 28641411. Preparation and submission to MassBank of North America by Chaleckis R. and Tada I. CONFIDENCE standard compound; INTERNAL_ID 10 DL-Threonine, an essential amino acid, has the potential to treat hypostatic leg ulceration[1]. L-Threonine is a natural amino acid, can be produced by microbial fermentation, and is used in food, medicine, or feed[1]. L-Threonine is a natural amino acid, can be produced by microbial fermentation, and is used in food, medicine, or feed[1].

D-Citramalate

C5H8O5 (148.0372)

Acquisition and generation of the data is financially supported in part by CREST/JST.

Maltitol

C12H24O11 (344.1319)

Maltitol is a sugar alcohol (polyol) used as a sugar substitute. It has 90\\% the sweetness of sugar and nearly identical properties, except for browning. It is used to very easily replace sugar and has less food energy, does not promote tooth decay and has a somewhat lower blood sugar response. Unfortunately, maltitol is well known to cause gastric distress, particularly if consumed in great quantities. Chemically, maltitol is also known as 4-O-alpha-Glucopyranosyl-D-sorbitol. Commercially, it is known under trade names such as Maltisorb and Maltisweet. Due to its slow absorption, excessive consumption of Maltitol can have laxative effect and often can cause gas and/or bloating. Maltitol is particularly demonized regarding gastric side effects because it is so easy for food producers to use it in vast quantities (due to its amazingly sugar-like properties) so consumers often end up consuming far more than they could most other sugar alcohols. While this is a major problem with maltitol, many sugar alcohols are far more likely to cause gastric distress than maltitol when compared gram-for-gram. Maltitol is an alpha-D-glucoside consisting of D-glucitol having an alpha-D-glucosyl residue attached at the 4-position. Used as a sugar substitute. It has a role as a metabolite, a laxative and a sweetening agent. It is an alpha-D-glucoside and a glycosyl alditol. It is functionally related to an alpha-D-glucose and a D-glucitol. Maltitol is a natural product found in Lotus filicaulis, Lotus tenuis, and other organisms with data available. An alpha-D-glucoside consisting of D-glucitol having an alpha-D-glucosyl residue attached at the 4-position. Used as a sugar substitute. Permitted bulk sweetener for foods

Ribitol

C5H12O5 (152.0685)

Xylitol is a pentitol (five-carbon sugar alcohol) having meso-configuration, being derived from xylose by reduction of the carbonyl group. It has a role as a sweetening agent, an allergen, a hapten, a human metabolite, an algal metabolite, a Saccharomyces cerevisiae metabolite and a mouse metabolite. Xylitol is a naturally occurring five-carbon sugar alcohol found in most plant material, including many fruits and vegetables. Xylitol-rich plant materials include birch and beechwood. It is widely used as a sugar substitute and in "sugar-free" food products. The effects of xylitol on dental caries have been widely studied, and xylitol is added to some chewing gums and other oral care products to prevent tooth decay and dry mouth. Xylitol is a non-fermentable sugar alcohol by most plaque bacteria, indicating that it cannot be fermented into cariogenic acid end-products. It works by inhibiting the growth of the microorganisms present in plaque and saliva after it accummulates intracellularly into the microorganism. The recommended dose of xylitol for dental caries prevention is 6–10 g/day, and most adults can tolerate 40 g/day without adverse events. Ribitol is a metabolite found in or produced by Escherichia coli (strain K12, MG1655). Xylitol is a natural product found in Rubus parvifolius with data available. Xylitol is a metabolite found in or produced by Saccharomyces cerevisiae. A five-carbon sugar alcohol derived from XYLOSE by reduction of the carbonyl group. It is as sweet as sucrose and used as a noncariogenic sweetener. A pentitol (five-carbon sugar alcohol) having meso-configuration, being derived from ribose by reduction of the carbonyl group. It occurs naturally in the plant Adonis vernalis. D000074385 - Food Ingredients > D005503 - Food Additives D010592 - Pharmaceutic Aids > D005421 - Flavoring Agents COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS Ribitol is a crystalline pentose alcohol formed by the reduction of ribose. Enhancing the flux of D-glucose to the pentose phosphate pathway in Saccharomyces cerevisiae for the production of D-ribose and ribitol. Ribitol is a crystalline pentose alcohol formed by the reduction of ribose. Enhancing the flux of D-glucose to the pentose phosphate pathway in Saccharomyces cerevisiae for the production of D-ribose and ribitol. Xylitol can be classified as polyols and sugar alcohols. Xylitol can be classified as polyols and sugar alcohols.

Docosane

C22H46 (310.3599)

N-docosane, also known as ch3-[ch2]20-ch3 or dokosan, is a member of the class of compounds known as alkanes. Alkanes are acyclic branched or unbranched hydrocarbons having the general formula CnH2n+2 , and therefore consisting entirely of hydrogen atoms and saturated carbon atoms. Thus, N-docosane is considered to be a hydrocarbon lipid molecule. N-docosane is an alkane and waxy tasting compound and can be found in a number of food items such as lemon balm, linden, allspice, and sunflower, which makes N-docosane a potential biomarker for the consumption of these food products. N-docosane can be found primarily in saliva. The term higher alkanes is sometimes used literally as "alkanes with a higher number of carbon atoms". One definition distinguishes the higher alkanes as the n-alkanes that are solid under natural conditions . Docosane, also known as CH3-[CH2]20-CH3 or dokosan, belongs to the class of organic compounds known as alkanes. These are acyclic branched or unbranched hydrocarbons having the general formula CnH2n+2 , and therefore consisting entirely of hydrogen atoms and saturated carbon atoms. Docosane is a very hydrophobic molecule, practically insoluble in water, and relatively neutral. Thus, docosane is considered to be a hydrocarbon lipid molecule. Docosane is an alkane and waxy tasting compound. Docosane is found, on average, in the highest concentration within lemon balms. Docosane has also been detected, but not quantified, in several different foods, such as allspices, lindens, papaya, and sunflowers. This could make docosane a potential biomarker for the consumption of these foods. A straight-chain alkane with 22 carbon atoms. N-docosane is a solid. Insoluble in water. Used in organic synthesis, calibration, and temperature sensing equipment. Docosane is a straight-chain alkane with 22 carbon atoms. It has a role as a plant metabolite. Docosane is a natural product found in Lonicera japonica, Erucaria microcarpa, and other organisms with data available. See also: Moringa oleifera leaf oil (part of). A straight-chain alkane with 22 carbon atoms. Docosane, a straight chain alkane, can be used to synthesize structural composites with thermal energy storage/release capability[1][2]. Docosane, a straight chain alkane, can be used to synthesize structural composites with thermal energy storage/release capability[1][2].

Ribitol

C5H12O5 (152.0685)

Ribitol is a pentose alcohol formed by the reduction of ribose. It occurs naturally in plants as well as in the cell walls of some Gram-positive bacteria. Ribitol forms part of the chemical structure of riboflavin and flavin mononucleotide (FMN). It is also a metabolic end product formed by the reduction of ribose in human fibroblasts and erythrocytes. In this regard ribitol is found in all organisms from bacteria to plants to humans. Ribitol is a normal constituent of human urine (PMID: 2736321). Elevated levels of ribitol in the serum or urine can be found in patients with transaldolase deficiency (PMID: 11283793). Transaldolase is an important enzyme in the pentose phosphate pathway (PPP). Elevated levels of ribitol in the serum or urine can be found in patients with Ribose-5-phosphate isomerase deficiency (PMID: 14988808). Ribose-5-phosphate isomerase is an important enzyme in the pentose phosphate pathway (PPP). Export of ribitol across the cell membrane indicates that can be cleared from the body without metabolic conversion (PMID 15234337). Ribitol is normally absent in Breast milk (PMID 16456418). Ribitol is a metabolic end product formed by the reduction of ribose in human fibroblasts and erythrocytes (pentitol, sugar alcohol, polyol). Export of ribitol across the cell membrane indicates that can be cleared from the body without metabolic conversion. (PMID 15234337) D000074385 - Food Ingredients > D005503 - Food Additives D010592 - Pharmaceutic Aids > D005421 - Flavoring Agents COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS Ribitol is a crystalline pentose alcohol formed by the reduction of ribose. Enhancing the flux of D-glucose to the pentose phosphate pathway in Saccharomyces cerevisiae for the production of D-ribose and ribitol. Ribitol is a crystalline pentose alcohol formed by the reduction of ribose. Enhancing the flux of D-glucose to the pentose phosphate pathway in Saccharomyces cerevisiae for the production of D-ribose and ribitol. Xylitol can be classified as polyols and sugar alcohols. Xylitol can be classified as polyols and sugar alcohols.

Erythronic acid

C4H8O5 (136.0372)

Erythronic acid is a sugar component of aqueous humour (eye). It may be derived from glycated proteins or from degradation of ascorbic acid. Erythronic acid is a normal organic acid present in a healthy adult and pediatric population. It has been found in urine, plasma, CSF, and synovial fluid (PMID: 14708889, 8087979, 8376520, 10420182). Erythronic acid is formed when N-acetyl-D-glucosamine (GlcNAc) is oxidized. GlcNAc is a constituent of hyaluronic acid (HA), a polysaccharide consisting of alternating units of glucuronic acid and GlcNAc, present as an aqueous solution in synovial fluid. In the synovial fluid of patients suffering from rheumatoid arthritis, HA is thought to be degraded either by radicals generated by Fenton chemistry (Fe2+/H2O2) or by NaOCl generated by myeloperoxidase (PMID: 10614067). Erythronic acid is a sugar component of aqueous humour (eye). It may be derived from glycated proteins or from degradation of ascorbic acid. Erythronic acid is a normal organic acid present in a healthy adult and pediatric population. It has been found in urine, plasma, CSF and synovial fluid. (PMID: 14708889, 8087979, 8376520, 10420182) Erythronic acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=13752-84-6 (retrieved 2024-07-10) (CAS RN: 13752-84-6). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Levoglucosan

C6H10O5 (162.0528)

Levoglucosan is an anhydrohexose that is the 1,6-anhydro-derivative of beta-D-glucopyranose. It is formed from the pyrolysis of carbohydrates, such as starch and cellulose. As a result, levoglucosan is often used as a chemical tracer for biomass burning in atmospheric chemistry studies, particularly with respect to airborne particulate matter. Levoglucosan in urine has been shown to be highly correlated with regional fires and as a biomarker for wood smoke exposure (PMID: 19165390). This is because the gas emitted by the pyrolysis of wood (biomass) contains significant amounts of levoglucosan. The hydrolysis of levoglucosan generates the fermentable sugar glucose, and therefore lignocellulosic material exhibits great potential as a renewable feedstock for the production of bioethanol. Levoglucosan can also be utilized in the synthesis of chiral polymers such as unhydrolysable glucose polymers. Levoglucosan is also produced via caramelization of sugar. Consumption of caramel or caramel-containing sweets can lead to a short-term 5X increase in urinary levels of levoglucosan (from 20 uM/mM creatinine to 100 uM/mM creatinine) (PMID: 19707249). Urinary levoglucosan levels increase within 2 h of caramel consumption and return to pre-exposure levels within 24 h. These data suggest that diet is a major factor in determining urinary levoglucosan levels and that recent dietary history needs to be taken into account to use levoglucosan as a marker for wood smoke exposure. Excretory levels of levoglucosan vary widely from zero up to 5.3 mmol/L (PMID: 3757263, 16448658, 16317539). Levoglucosan (1,6-Anhydro-β-D-glucopyranose) is an anhydrosugar produced through glucan pyrolysis and is widely found in nature[1].

Galactinol

C12H22O11 (342.1162)

Galactinol belongs to the class of organic compounds known as O-glycosyl compounds. These are glycoside in which a sugar group is bonded through one carbon to another group via an O-glycosidic bond. Galactinol is an extremely weak basic (essentially neutral) compound (based on its pKa). Galactinol is an intermediate in galactose metabolism. Galactinol is the fourth-to-last step in the synthesis of D-galactose and the third-to-last step in the synthesis of D-glucose and D-fructose. Galactinol is converted from UDP-galactose via the enzyme inositol 3-alpha-galactosyltransferase (EC 2.4.1.123). It is then converted into raffinose via the enzyme raffinose synthase (EC 2.4.1.82). Constituent of sugar-beet juice, castor-oil seed meal and potatoes after cold storage

Octacosane

C28H58 (394.4538)

Octacosane, also known as ch3-[ch2]26-ch3, is a member of the class of compounds known as alkanes. Alkanes are acyclic branched or unbranched hydrocarbons having the general formula CnH2n+2 , and therefore consisting entirely of hydrogen atoms and saturated carbon atoms. Thus, octacosane is considered to be a hydrocarbon lipid molecule. Octacosane can be found in a number of food items such as peach, linden, apple, and carrot, which makes octacosane a potential biomarker for the consumption of these food products. Octacosane can be found primarily in saliva. The term higher alkanes is sometimes used literally as "alkanes with a higher number of carbon atoms". One definition distinguishes the higher alkanes as the n-alkanes that are solid under natural conditions . Octacosane, also known as CH3-[CH2]26-CH3, belongs to the class of organic compounds known as alkanes. These are acyclic branched or unbranched hydrocarbons having the general formula CnH2n+2 , and therefore consisting entirely of hydrogen atoms and saturated carbon atoms. Octacosane is a very hydrophobic molecule, practically insoluble in water, and relatively neutral. Thus, octacosane is considered to be a hydrocarbon lipid molecule. Octacosane has been detected, but not quantified, in several different foods, such as peachs, coconuts, apples, sweet cherries, and lindens. This could make octacosane a potential biomarker for the consumption of these foods. A straight-chain alkane containing 28 carbon atoms.

Octadecane

C18H38 (254.2973)

Octadecane, also known as CH3-[CH2]16-CH3, belongs to the class of organic compounds known as alkanes. These are acyclic branched or unbranched hydrocarbons having the general formula CnH2n+2 , and therefore consisting entirely of hydrogen atoms and saturated carbon atoms. Octadecane is a very hydrophobic molecule, practically insoluble in water, and relatively neutral. Thus, octadecane is considered to be a hydrocarbon lipid molecule. Octadecane is an alkane tasting compound. Octadecane has been detected, but not quantified, in several different foods, such as papaya, corianders, sunflowers, kohlrabis, and parsnips. Found in hop oil and other plant sources. Isolated from Piper longum (long pepper). Octadecane is an alkane that is used to store thermal energy at ambient temperature as a phase change material[1].

cis-Caffeic acid

C9H8O4 (180.0423)

Caffeic acid, also known as caffeate, belongs to the class of organic compounds known as hydroxycinnamic acids. Hydroxycinnamic acids are compounds containing an cinnamic acid where the benzene ring is hydroxylated. Caffeic acid exists in all living species, ranging from bacteria to humans. It is the precursor to ferulic acid, coniferyl alcohol, and sinapyl alcohol, all of which are significant building blocks in lignin. Outside of the human body, caffeic acid has been detected, but not quantified in fats and oils and nuts. Caffeic acid is formally rated as a possible carcinogen (by IARC 2B) and is also a potentially toxic compound. Caffeic acid has a variety of potential pharmacological effects in in vitro studies and in animal models, and the inhibitory effect of caffeic acid on cancer cell proliferation by an oxidative mechanism in the human HT-1080 fibrosarcoma cell line has recently been established. It occurs at high levels in black chokeberry (141 mg per 100 g) and in fairly high level in lingonberry (6 mg per 100 g). D020011 - Protective Agents > D000975 - Antioxidants Found in olive oil, peanuts and other plant sources Caffeic acid is an inhibitor of both TRPV1 ion channel and 5-Lipoxygenase (5-LO). Caffeic acid is an inhibitor of both TRPV1 ion channel and 5-Lipoxygenase (5-LO). Caffeic acid is an inhibitor of both TRPV1 ion channel and 5-Lipoxygenase (5-LO).

Glycerate

C3H6O4 (106.0266)

L-glyceric acid is a human urinary metabolite present in patients with L-Glyceric aciduria. The formation of L-glyceric acid from accumulated hydroxypyruvate is due to deficiency of human glyoxylate reductase/hydroxypyruvate reductase (GRHPR, EC 1.1.1.81), a D-2-hydroxy-acid dehydrogenase that plays a critical role in the removal of the metabolic by-product glyoxylate from within the liver. Deficiency of this enzyme is the underlying cause of primary hyperoxaluria type 2 (PH2) and leads to increased urinary oxalate levels, formation of kidney stones and renal failure. (PMID: 16756993) [HMDB] L-glyceric acid is a human urinary metabolite present in patients with L-Glyceric aciduria. The formation of L-glyceric acid from accumulated hydroxypyruvate is due to deficiency of human glyoxylate reductase/hydroxypyruvate reductase (GRHPR, EC 1.1.1.81), a D-2-hydroxy-acid dehydrogenase that plays a critical role in the removal of the metabolic by-product glyoxylate from within the liver. Deficiency of this enzyme is the underlying cause of primary hyperoxaluria type 2 (PH2) and leads to increased urinary oxalate levels, formation of kidney stones and renal failure. (PMID: 16756993).

Methylphosphate

CH5O4P (111.9925)

Methylphosphate, also known as monomethyl phosphate or MMP, belongs to the class of organic compounds known as monoalkyl phosphates. These are organic compounds containing a phosphate group that is linked to exactly one alkyl chain. Methylphosphate is a moderately acidic compound (based on its pKa). Methylphosphate is a methyl ester of phosphoric acid. It is a colourless, nonvolatile liquid, and it has some specialized uses in the production of other compounds.

allo-Inositol

C6H12O6 (180.0634)

allo-Inositol is an inositol isoform. Inositol is a derivative of cyclohexane with six hydroxyl groups, making it a polyol. It also is known as a sugar alcohol, having exactly the same molecular formula as glucose or other hexoses. Inositol exists in nine possible stereoisomers, including scyllo-inositol, myo-inositol (the most abundant), muco-inositol, D-chiro-inositol, L-chiro-inositol, neo-inositol, allo-inositol, epi-inositol, and cis-inositol.

2,3,4-Trihydroxybutanoic acid

C4H8O5 (136.0372)

3-Cyanoalanine

C4H6N2O2 (114.0429)

Beta-cyanoalanine, also known as propargylglycine, is a member of the class of compounds known as alpha amino acids. Alpha amino acids are amino acids in which the amino group is attached to the carbon atom immediately adjacent to the carboxylate group (alpha carbon). Beta-cyanoalanine is soluble (in water) and an extremely strong acidic compound (based on its pKa). Beta-cyanoalanine can be found in broad bean, which makes beta-cyanoalanine a potential biomarker for the consumption of this food product.

uric acid

C5H4N4O3 (168.0283)

D020011 - Protective Agents > D000975 - Antioxidants Uric acid, scavenger of oxygen radical, is a very important antioxidant that help maintains the stability of blood pressure and antioxidant stress. Uric acid can remove reactive oxygen species (ROS) such as singlet oxygen and peroxynitrite, inhibiting lipid peroxidation[1][2]. Uric acid, scavenger of oxygen radical, is a very important antioxidant that help maintains the stability of blood pressure and antioxidant stress. Uric acid can remove reactive oxygen species (ROS) such as singlet oxygen and peroxynitrite, inhibiting lipid peroxidation[1][2].

Raffinose

C18H32O16 (504.169)

COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS Raffinose (Melitose), a non-digestible short-chain?oligosaccharide, is a trisaccharide composed of galactose, glucose, and fructose and can be found in many plants. Raffinose (Melitose) can be hydrolyzed to D-galactose and sucrose by the enzyme α-galactosidase (α-GAL)[1]. Raffinose (Melitose), a non-digestible short-chain?oligosaccharide, is a trisaccharide composed of galactose, glucose, and fructose and can be found in many plants. Raffinose (Melitose) can be hydrolyzed to D-galactose and sucrose by the enzyme α-galactosidase (α-GAL)[1].

Citric Acid

C6H8O7 (192.027)

A - Alimentary tract and metabolism > A09 - Digestives, incl. enzymes > A09A - Digestives, incl. enzymes > A09AB - Acid preparations D064449 - Sequestering Agents > D002614 - Chelating Agents > D065096 - Calcium Chelating Agents D006401 - Hematologic Agents > D000925 - Anticoagulants C26170 - Protective Agent > C275 - Antioxidant COVID info from PDB, Protein Data Bank Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS Citric acid is a natural preservative and food tartness enhancer. Citric acid induces apoptosis and cell cycle arrest at G2/M phase and S phase in HaCaT cells. Citric acid cause oxidative damage of the liver by means of the decrease of antioxidative enzyme activities. Citric acid causes renal toxicity in mice[1][2][3]. Citric acid is a natural preservative and food tartness enhancer. Citric acid induces apoptosis and cell cycle arrest at G2/M phase and S phase in HaCaT cells. Citric acid cause oxidative damage of the liver by means of the decrease of antioxidative enzyme activities. Citric acid causes renal toxicity in mice[1][2][3].

cis-Aconitic acid

C6H6O6 (174.0164)

(Z)-Aconitic acid (cis-Aconitic acid) is the cis-isomer of Aconitic acid. (Z)-Aconitic acid (cis-Aconitic acid) is an intermediate in the tricarboxylic acid cycle produced by the dehydration of citric acid. (Z)-Aconitic acid (cis-Aconitic acid) is the cis-isomer of Aconitic acid. (Z)-Aconitic acid (cis-Aconitic acid) is an intermediate in the tricarboxylic acid cycle produced by the dehydration of citric acid.

Astragalin

C21H20O11 (448.1006)

Astragalin (Astragaline) a flavonoid with anti-inflammatory, antioxidant, anticancer, bacteriostatic activity. Astragalin inhibits cancer cells proliferation and migration, induces apoptosis. Astragalin is orally active and provides nerve and heart protection, and resistance against and osteoporosis[1]. Astragalin (Astragaline) a flavonoid with anti-inflammatory, antioxidant, anticancer, bacteriostatic activity. Astragalin inhibits cancer cells proliferation and migration, induces apoptosis. Astragalin is orally active and provides nerve and heart protection, and resistance against and osteoporosis[1].

Sutchuenoside A

C29H32O15 (620.1741)

Ascorbic acid

C6H8O6 (176.0321)

Ascorbic acid is found naturally in citrus fruits and many vegetables and is an essential nutrient in human diets. It is necessary to maintain connective tissue and bone. The biologically active form of ascorbic acid is vitamin C. Vitamin C is a water soluble vitamin. Primates (including humans) and a few other species in all divisions of the animal kingdom, notably the guinea pig, have lost the ability to synthesize ascorbic acid and must obtain it in their food. Vitamin C functions as a reducing agent and coenzyme in several metabolic pathways. Vitamin C is considered an antioxidant (PubChem). Ascorbic acid is an electron donor for enzymes involved in collagen hydroxylation, biosynthesis of carnitine and norepinephrine, tyrosine metabolism, and amidation of peptide hormones. Ascrobic acid (vitamin C) deficiency causes scurvy. The amount of vitamin C necessary to prevent scurvy may not be adequate to maintain optimal health. The ability of vitamin C to donate electrons also makes it a potent water-soluble antioxidant that readily scavenges free radicals such as molecular oxygen, superoxide, hydroxyl radical, and hypochlorous acid. In this setting, several mechanisms could account for a link between vitamin C and heart disease. One is the relation between LDL oxidation and vitamins C and E. Vitamin C in vitro can recycle vitamin E, which can donate electrons to prevent LDL oxidation in vitro. As the lipid-phase vitamin E is oxidized, it can be regenerated by aqueous vitamin C. Other possibilities are that vitamin C could decrease cholesterol by mechanisms not well characterized, or could improve vasodilatation and vascular reactivity, perhaps by decreasing the interactions of nitric oxide with oxidants (PMID: 10799361). Moreover, ascorbic acid is found to be associated with hyperoxalemia, which is an inborn error of metabolism. Ascorbic acid is also a microbial metabolite produced by Ketogulonicigenium (PMID: 15785002). Occurs widely in animals and plants. Good sources are citrus fruits and hip berries. Isolated from ox adrenal cortex, lemons and paprika. Production industrially on a large scale from glucose. Vitamin (antiscorbutic), antioxidant, nutrient, preservative consistency enhancer. It is used to reduce discoloration, mainly browning caused by polyphenol oxidase, in fruit and vegetable products. It is used to enhance colour formn. and to reduced the formn. of nitrosamines in meat products. It is used synergistically with Sulfur dioxide HVF10-P in wine and beer as a perservative. Assists formn. of the gluten network in bread making, thus enhancing bread volume. L-Ascorbic acid is found in many foods, some of which are cabbage, hyssop, ginseng, and pancake. L-Ascorbic acid (L-Ascorbate), an electron donor, is an endogenous antioxidant agent. L-Ascorbic acid inhibits selectively Cav3.2 channels with an IC50 of 6.5 μM. L-Ascorbic acid is also a collagen deposition enhancer and an elastogenesis inhibitor[1][2][3]. L-Ascorbic acid exhibits anti-cancer effects through the generation of reactive oxygen species (ROS) and selective damage to cancer cells[4]. L-Ascorbic acid (L-Ascorbate), an electron donor, is an endogenous antioxidant agent. L-Ascorbic acid inhibits selectively Cav3.2 channels with an IC50 of 6.5 μM. L-Ascorbic acid is also a collagen deposition enhancer and an elastogenesis inhibitor[1][2][3]. L-Ascorbic acid exhibits anti-cancer effects through the generation of reactive oxygen species (ROS) and selective damage to cancer cells[4].

Palmitic Acid

C16H32O2 (256.2402)

COVID info from WikiPathways D004791 - Enzyme Inhibitors Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS

Quinic acid

C7H12O6 (192.0634)

relative retention time with respect to 9-anthracene Carboxylic Acid is 0.054 relative retention time with respect to 9-anthracene Carboxylic Acid is 0.053 D-(-)-Quinic acid is a cyclohexanecarboxylic acid and is implicated in the perceived acidity of coffee. D-(-)-Quinic acid is a cyclohexanecarboxylic acid and is implicated in the perceived acidity of coffee.

Saccharic acid

C6H10O8 (210.0376)

Present in apples and grapefruit. D-Glucaric acid is found in pomes and citrus.

4-Hydroxybutyric acid

C4H8O3 (104.0473)

A 4-hydroxy monocarboxylic acid that is butyric acid in which one of the hydrogens at position 4 is replaced by a hydroxy group.

sitosterol

C29H50O (414.3861)

A member of the class of phytosterols that is stigmast-5-ene substituted by a beta-hydroxy group at position 3. C1907 - Drug, Natural Product > C28178 - Phytosterol > C68437 - Unsaturated Phytosterol D057847 - Lipid Regulating Agents > D000960 - Hypolipidemic Agents D009676 - Noxae > D000963 - Antimetabolites Beta-Sitosterol (purity>98\\%) is a plant sterol. Beta-Sitosterol (purity>98\\%) interfere with multiple cell signaling pathways, including cell cycle, apoptosis, proliferation, survival, invasion, angiogenesis, metastasis and inflammation[1]. Beta-Sitosterol (purity>98\%) is a plant sterol. Beta-Sitosterol (purity>98\%) interfere with multiple cell signaling pathways, including cell cycle, apoptosis, proliferation, survival, invasion, angiogenesis, metastasis and inflammation[1].

Gluconolactone

C6H10O6 (178.0477)

C26170 - Protective Agent > C275 - Antioxidant D-(+)-Glucono-1,5-lactone is a polyhydroxy (PHA) that is capable of metal chelating, moisturizing and antioxidant activity.

Afzelin

C21H20O10 (432.1056)

Afzelin is a glycosyloxyflavone that is kaempferol attached to an alpha-L-rhamnosyl residue at position 3 via a glycosidic linkage. It has a role as a plant metabolite, an antibacterial agent and an anti-inflammatory agent. It is a glycosyloxyflavone, a trihydroxyflavone and a monosaccharide derivative. It is functionally related to a kaempferol. It is a conjugate acid of an afzelin(1-). Afzelin is a natural product found in Premna odorata, Vicia tenuifolia, and other organisms with data available. A glycosyloxyflavone that is kaempferol attached to an alpha-L-rhamnosyl residue at position 3 via a glycosidic linkage. Acquisition and generation of the data is financially supported in part by CREST/JST. Afzelin (Kaempferol-3-O-rhamnoside) is is a flavonol glycoside found in Houttuynia cordata Thunberg and is widely used in the preparation of antibacterial and antipyretic agents, detoxicants and for the treatment of inflammation. Afzelin attenuates the mitochondrial damage, enhances mitochondrial biogenesis and decreases the level of mitophagy-related proteins, parkin and PTEN-induced putative kinase 1. Afzelin improves the survival rate and reduces the serum levels of alanine aminotransferase and pro-inflammatory cytokines in D-galactosamine (GalN)/LPS -treated mice[1]. Afzelin (Kaempferol-3-O-rhamnoside)It is a flavonol glycoside that has anti-inflammatory, anti-oxidative stress response, anti-apoptotic, and anti-cardiac cytotoxic effects. AfzelinIt can reduce mitochondrial damage, enhance mitochondrial biosynthesis, and reduce mitochondria-related proteins. Parkinand PTENinduced putative kinase 1 (putative kinase 1)s level. AfzelinCan be improved D-galactosamine(GalN)/LPSSurvival rate of mice treated with doxorubicin prophylaxis (HY-15142A)Induced cardiotoxicity and scopolamine (HY-N0296)-induced neurological injury. AfzelinAlso inhibits asthma and allergies caused by ovalbumin[1][2][3][4]. Afzelin (Kaempferol-3-O-rhamnoside) is is a flavonol glycoside found in Houttuynia cordata Thunberg and is widely used in the preparation of antibacterial and antipyretic agents, detoxicants and for the treatment of inflammation. Afzelin attenuates the mitochondrial damage, enhances mitochondrial biogenesis and decreases the level of mitophagy-related proteins, parkin and PTEN-induced putative kinase 1. Afzelin improves the survival rate and reduces the serum levels of alanine aminotransferase and pro-inflammatory cytokines in D-galactosamine (GalN)/LPS -treated mice[1].

Lespedin

C27H30O14 (578.1635)

Annotation level-1 Acquisition and generation of the data is financially supported in part by CREST/JST. Kaempferitrin is a natural flavonoid, possesses antinociceptive, anti-inflammatory, anti-diabetic, antitumoral and chemopreventive effects, and activates insulin signaling pathway. Kaempferitrin is a natural flavonoid, possesses antinociceptive, anti-inflammatory, anti-diabetic, antitumoral and chemopreventive effects, and activates insulin signaling pathway.

Swartziol

C15H10O6 (286.0477)

Kaempferol (Kempferol), a flavonoid found in many edible plants, inhibits estrogen receptor α expression in breast cancer cells and induces apoptosis in glioblastoma cells and lung cancer cells by activation of MEK-MAPK. Kaempferol can be uesd for the research of breast cancer[1][2][3][4]. Kaempferol (Kempferol), a flavonoid found in many edible plants, inhibits estrogen receptor α expression in breast cancer cells and induces apoptosis in glioblastoma cells and lung cancer cells by activation of MEK-MAPK. Kaempferol can be uesd for the research of breast cancer[1][2][3][4].

Quercitrin

C21H20O11 (448.1006)

Quercitrin (Quercetin 3-rhamnoside) is a bioflavonoid compound with potential anti-inflammation, antioxidative and neuroprotective effect. Quercitrin induces apoptosis of colon cancer cells. Quercitrin can be used for the research of cardiovascular and neurological disease research[1][2]. Quercitrin (Quercetin 3-rhamnoside) is a bioflavonoid compound with potential anti-inflammation, antioxidative and neuroprotective effect. Quercitrin induces apoptosis of colon cancer cells. Quercitrin can be used for the research of cardiovascular and neurological disease research[1][2]. Quercitrin (Quercetin 3-rhamnoside) is a bioflavonoid compound with potential anti-inflammation, antioxidative and neuroprotective effect. Quercitrin induces apoptosis of colon cancer cells. Quercitrin can be used for the research of cardiovascular and neurological disease research[1][2].

Schleimsaure

C6H10O8 (210.0376)

Catechin

C15H14O6 (290.079)

Annotation level-1 Catechin ((+)-Catechin) inhibits cyclooxygenase-1 (COX-1) with an IC50 of 1.4 μM. Catechin ((+)-Catechin) inhibits cyclooxygenase-1 (COX-1) with an IC50 of 1.4 μM.

Glucose

C6H12O6 (180.0634)

B - Blood and blood forming organs > B05 - Blood substitutes and perfusion solutions > B05C - Irrigating solutions V - Various > V04 - Diagnostic agents > V04C - Other diagnostic agents > V04CA - Tests for diabetes V - Various > V06 - General nutrients > V06D - Other nutrients > V06DC - Carbohydrates COVID info from clinicaltrial, clinicaltrials, clinical trial, clinical trials D000074385 - Food Ingredients > D005503 - Food Additives D010592 - Pharmaceutic Aids > D005421 - Flavoring Agents Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS alpha-D-glucose is an endogenous metabolite. alpha-D-glucose is an endogenous metabolite.

Kaempferol

C15H10O6 (286.0477)

Annotation level-3 Annotation level-1 relative retention time with respect to 9-anthracene Carboxylic Acid is 1.010 relative retention time with respect to 9-anthracene Carboxylic Acid is 1.011 Acquisition and generation of the data is financially supported by the Max-Planck-Society IPB_RECORD: 2141; CONFIDENCE confident structure IPB_RECORD: 3341; CONFIDENCE confident structure IPB_RECORD: 3321; CONFIDENCE confident structure CONFIDENCE confident structure; IPB_RECORD: 3321 IPB_RECORD: 141; CONFIDENCE confident structure Kaempferol (Kempferol), a flavonoid found in many edible plants, inhibits estrogen receptor α expression in breast cancer cells and induces apoptosis in glioblastoma cells and lung cancer cells by activation of MEK-MAPK. Kaempferol can be uesd for the research of breast cancer[1][2][3][4]. Kaempferol (Kempferol), a flavonoid found in many edible plants, inhibits estrogen receptor α expression in breast cancer cells and induces apoptosis in glioblastoma cells and lung cancer cells by activation of MEK-MAPK. Kaempferol can be uesd for the research of breast cancer[1][2][3][4].

2,3-diaminobutanoic acid

C4H10N2O2 (118.0742)

Tyramine

C8H11NO (137.0841)

D018377 - Neurotransmitter Agents > D014179 - Neurotransmitter Uptake Inhibitors > D018759 - Adrenergic Uptake Inhibitors D018373 - Peripheral Nervous System Agents > D001337 - Autonomic Agents > D013566 - Sympathomimetics A primary amino compound obtained by formal decarboxylation of the amino acid tyrosine. D018377 - Neurotransmitter Agents > D018663 - Adrenergic Agents D049990 - Membrane Transport Modulators Annotation level-2 Acquisition and generation of the data is financially supported by the Max-Planck-Society IPB_RECORD: 2741; CONFIDENCE confident structure Tyramine is an amino acid that helps regulate blood pressure. Tyramine occurs naturally in the body, and it's found in certain foods[1]. Tyramine is an amino acid that helps regulate blood pressure. Tyramine occurs naturally in the body, and it's found in certain foods[1].

Caffeate

C9H8O4 (180.0423)

D020011 - Protective Agents > D000975 - Antioxidants KEIO_ID C107 Caffeic acid is an inhibitor of both TRPV1 ion channel and 5-Lipoxygenase (5-LO). Caffeic acid is an inhibitor of both TRPV1 ion channel and 5-Lipoxygenase (5-LO). Caffeic acid is an inhibitor of both TRPV1 ion channel and 5-Lipoxygenase (5-LO).

Trehalose

C12H22O11 (342.1162)

Trehalose, also known as alpha,alpha-trehalose or D-(+)-trehalose, is a member of the class of compounds known as O-glycosyl compounds. O-glycosyl compounds are glycoside in which a sugar group is bonded through one carbon to another group via a O-glycosidic bond. Trehalose is soluble (in water) and a very weakly acidic compound (based on its pKa). Trehalose can be found in a number of food items such as european chestnut, chicory, wild celery, and shallot, which makes trehalose a potential biomarker for the consumption of these food products. Trehalose can be found primarily in feces and urine, as well as throughout most human tissues. Trehalose exists in all living species, ranging from bacteria to humans. In humans, trehalose is involved in the trehalose degradation. Acquisition and generation of the data is financially supported by the Max-Planck-Society D-(+)-Trehalose,which is widespread, can be used as a food ingredient and pharmaceutical excipient. D-(+)-Trehalose,which is widespread, can be used as a food ingredient and pharmaceutical excipient.

Caffeic Acid

C9H8O4 (180.0423)

A hydroxycinnamic acid that is cinnamic acid in which the phenyl ring is substituted by hydroxy groups at positions 3 and 4. It exists in cis and trans forms; the latter is the more common. 3,4-dihydroxycinnamic acid, also known as caffeic acid or trans-caffeate, is a member of the class of compounds known as hydroxycinnamic acids. Hydroxycinnamic acids are compounds containing an cinnamic acid where the benzene ring is hydroxylated. 3,4-dihydroxycinnamic acid is slightly soluble (in water) and a weakly acidic compound (based on its pKa). 3,4-dihydroxycinnamic acid can be found in fats and oils and nuts, which makes 3,4-dihydroxycinnamic acid a potential biomarker for the consumption of these food products. 3,4-dihydroxycinnamic acid exists in all eukaryotes, ranging from yeast to humans. Caffeic acid is an organic compound that is classified as a hydroxycinnamic acid. This yellow solid consists of both phenolic and acrylic functional groups. It is found in all plants because it is a key intermediate in the biosynthesis of lignin, one of the principal components of plant biomass and its residues . Caffeic acid is a polyphenol present in normal human urine positively correlated to coffee consumption and influenced by the dietary intake of diverse types of food. (PMID:16870009) [HMDB]. Caffeic acid is found in many foods, some of which are cardoon, coriander, common persimmon, and irish moss. D020011 - Protective Agents > D000975 - Antioxidants Annotation level-2 CONFIDENCE standard compound; INTERNAL_ID 167 relative retention time with respect to 9-anthracene Carboxylic Acid is 0.412 relative retention time with respect to 9-anthracene Carboxylic Acid is 0.403 Caffeic acid is an inhibitor of both TRPV1 ion channel and 5-Lipoxygenase (5-LO). Caffeic acid is an inhibitor of both TRPV1 ion channel and 5-Lipoxygenase (5-LO). Caffeic acid is an inhibitor of both TRPV1 ion channel and 5-Lipoxygenase (5-LO).

Levoglucosan

C6H10O5 (162.0528)

A anhydrohexose that is the 1,6-anhydro-derivative of beta-D-glucopyranose. Acquisition and generation of the data is financially supported in part by CREST/JST. Levoglucosan (1,6-Anhydro-β-D-glucopyranose) is an anhydrosugar produced through glucan pyrolysis and is widely found in nature[1].

Maltitol

C12H24O11 (344.1319)

Acquisition and generation of the data is financially supported in part by CREST/JST.

L-alanine

C3H7NO2 (89.0477)

The L-enantiomer of alanine. L-Alanine is a non-essential amino acid, involved in sugar and acid metabolism, increases immunity, and provides energy for muscle tissue, brain, and central nervous system. L-Alanine is a non-essential amino acid, involved in sugar and acid metabolism, increases immunity, and provides energy for muscle tissue, brain, and central nervous system.

L-proline

C5H9NO2 (115.0633)

A human metabolite taken as a putative food compound of mammalian origin [HMDB] MS2 deconvoluted using MS2Dec from all ion fragmentation data, MetaboLights identifier MTBLS1040; ONIBWKKTOPOVIA_STSL_0035_Proline_2000fmol_180506_S2_LC02_MS02_282; Spectrum acquired as described in Naz et al 2017 PMID 28641411. Preparation and submission to MassBank of North America by Chaleckis R. and Tada I. MS2 deconvoluted using CorrDec from all ion fragmentation data, MetaboLights identifier MTBLS1040; Spectrum acquired as described in Naz et al 2017 PMID 28641411. Preparation and submission to MassBank of North America by Chaleckis R. and Tada I. L-Proline is one of the twenty amino acids used in living organisms as the building blocks of proteins. L-Proline is one of the twenty amino acids used in living organisms as the building blocks of proteins.

L-Lysine

C6H14N2O2 (146.1055)

An L-alpha-amino acid; the L-isomer of lysine. L-lysine is an essential amino acid[1][2] with important roles in connective tissues and carnitine synthesis, energy production, growth in children, and maintenance of immune functions[2]. L-lysine is an essential amino acid[1][2] with important roles in connective tissues and carnitine synthesis, energy production, growth in children, and maintenance of immune functions[2].

L-Ornithine

C5H12N2O2 (132.0899)

L-Ornithine ((S)-2,5-Diaminopentanoic acid) is a non-proteinogenic amino acid, is mainly used in urea cycle removing excess nitrogen in vivo. L-Ornithine shows nephroprotective[1][2]. L-Ornithine ((S)-2,5-Diaminopentanoic acid) is a non-proteinogenic amino acid, is mainly used in urea cycle removing excess nitrogen in vivo. L-Ornithine shows nephroprotective[1][2].

Urate

C5H4N4O3 (168.0283)

D020011 - Protective Agents > D000975 - Antioxidants Uric acid, scavenger of oxygen radical, is a very important antioxidant that help maintains the stability of blood pressure and antioxidant stress. Uric acid can remove reactive oxygen species (ROS) such as singlet oxygen and peroxynitrite, inhibiting lipid peroxidation[1][2]. Uric acid, scavenger of oxygen radical, is a very important antioxidant that help maintains the stability of blood pressure and antioxidant stress. Uric acid can remove reactive oxygen species (ROS) such as singlet oxygen and peroxynitrite, inhibiting lipid peroxidation[1][2].

L-Serine

C3H7NO3 (105.0426)

The L-enantiomer of serine. MS2 deconvoluted using MS2Dec from all ion fragmentation data, MetaboLights identifier MTBLS1040; MTCFGRXMJLQNBG_STSL_0098_Serine_8000fmol_180430_S2_LC02_MS02_174; Spectrum acquired as described in Naz et al 2017 PMID 28641411. Preparation and submission to MassBank of North America by Chaleckis R. and Tada I. MS2 deconvoluted using CorrDec from all ion fragmentation data, MetaboLights identifier MTBLS1040; Spectrum acquired as described in Naz et al 2017 PMID 28641411. Preparation and submission to MassBank of North America by Chaleckis R. and Tada I. L-Serine ((-)-Serine; (S)-Serine), one of the so-called non-essential amino acids, plays a central role in cellular proliferation. L-Serine ((-)-Serine; (S)-Serine), one of the so-called non-essential amino acids, plays a central role in cellular proliferation.

Mucic acid

C6H10O8 (210.0376)

A hexaric acid resulting from formal oxidative ring cleavage of galactose. Mucic acid is an endogenous metabolite.

4-hydroxybenzoate

C7H6O3 (138.0317)

4-Hydroxybenzoic acid, a phenolic derivative of benzoic acid, could inhibit most gram-positive and some gram-negative bacteria, with an IC50 of 160 μg/mL. 4-Hydroxybenzoic acid, a phenolic derivative of benzoic acid, could inhibit most gram-positive and some gram-negative bacteria, with an IC50 of 160 μg/mL.

ferulate

C10H10O4 (194.0579)

Ferulic acid, also known as 4-hydroxy-3-methoxycinnamic acid or 3-methoxy-4-hydroxy-trans-cinnamic acid, is a member of the class of compounds known as hydroxycinnamic acids. Hydroxycinnamic acids are compounds containing an cinnamic acid where the benzene ring is hydroxylated. Ferulic acid is practically insoluble (in water) and a weakly acidic compound (based on its pKa). Ferulic acid can be found in a number of food items such as flaxseed, pepper (c. chinense), chinese cinnamon, and wakame, which makes ferulic acid a potential biomarker for the consumption of these food products. Ferulic acid can be found primarily in blood, feces, and urine, as well as in human fibroblasts and stratum corneum tissues. Ferulic acid exists in all eukaryotes, ranging from yeast to humans. Ferulic acid is a hydroxycinnamic acid, a type of organic compound. It is an abundant phenolic phytochemical found in plant cell walls, covalently bonded as side chains to molecules such as arabinoxylans. As a component of lignin, ferulic acid is a precursor in the manufacture of other aromatic compounds. The name is derived from the genus Ferula, referring to the giant fennel (Ferula communis) . D018373 - Peripheral Nervous System Agents > D018689 - Sensory System Agents D005765 - Gastrointestinal Agents > D002756 - Cholagogues and Choleretics D002317 - Cardiovascular Agents > D000959 - Antihypertensive Agents D019995 - Laboratory Chemicals > D007202 - Indicators and Reagents D002491 - Central Nervous System Agents > D000700 - Analgesics D000975 - Antioxidants > D016166 - Free Radical Scavengers D006401 - Hematologic Agents > D000925 - Anticoagulants D020011 - Protective Agents > D000975 - Antioxidants D000893 - Anti-Inflammatory Agents D018501 - Antirheumatic Agents (E)-Ferulic acid is a isomer of Ferulic acid which is an aromatic compound, abundant in plant cell walls. (E)-Ferulic acid causes the phosphorylation of β-catenin, resulting in proteasomal degradation of β-catenin and increases the expression of pro-apoptotic factor Bax and decreases the expression of pro-survival factor survivin. (E)-Ferulic acid shows a potent ability to remove reactive oxygen species (ROS) and inhibits lipid peroxidation. (E)-Ferulic acid exerts both anti-proliferation and anti-migration effects in the human lung cancer cell line H1299[1]. (E)-Ferulic acid is a isomer of Ferulic acid which is an aromatic compound, abundant in plant cell walls. (E)-Ferulic acid causes the phosphorylation of β-catenin, resulting in proteasomal degradation of β-catenin and increases the expression of pro-apoptotic factor Bax and decreases the expression of pro-survival factor survivin. (E)-Ferulic acid shows a potent ability to remove reactive oxygen species (ROS) and inhibits lipid peroxidation. (E)-Ferulic acid exerts both anti-proliferation and anti-migration effects in the human lung cancer cell line H1299[1]. Ferulic acid is a novel fibroblast growth factor receptor 1 (FGFR1) inhibitor with IC50s of 3.78 and 12.5 μM for FGFR1 and FGFR2, respectively. Ferulic acid is a novel fibroblast growth factor receptor 1 (FGFR1) inhibitor with IC50s of 3.78 and 12.5 μM for FGFR1 and FGFR2, respectively.

Azelaic Acid

C9H16O4 (188.1049)

D - Dermatologicals > D10 - Anti-acne preparations > D10A - Anti-acne preparations for topical use C254 - Anti-Infective Agent > C28394 - Topical Anti-Infective Agent D000970 - Antineoplastic Agents D003879 - Dermatologic Agents Annotation level-2 Azelaic acid is a nine-carbon dicarboxylic acid. Azelaic acid has antimicrobial activity against Propionibacterium acnes and Staphylococcus epidermidis through inhibition of microbial cellular prorein synthesis. Azelaic acid has hypopigmentation action resulting from its ability to scavenge free radicals[1][2]. Azelaic acid is a nine-carbon dicarboxylic acid. Azelaic acid has antimicrobial activity against Propionibacterium acnes and Staphylococcus epidermidis through inhibition of microbial cellular prorein synthesis. Azelaic acid has hypopigmentation action resulting from its ability to scavenge free radicals[1][2].

Ferulic acid

C10H10O4 (194.0579)

(E)-Ferulic acid is a isomer of Ferulic acid which is an aromatic compound, abundant in plant cell walls. (E)-Ferulic acid causes the phosphorylation of β-catenin, resulting in proteasomal degradation of β-catenin and increases the expression of pro-apoptotic factor Bax and decreases the expression of pro-survival factor survivin. (E)-Ferulic acid shows a potent ability to remove reactive oxygen species (ROS) and inhibits lipid peroxidation. (E)-Ferulic acid exerts both anti-proliferation and anti-migration effects in the human lung cancer cell line H1299[1]. (E)-Ferulic acid is a isomer of Ferulic acid which is an aromatic compound, abundant in plant cell walls. (E)-Ferulic acid causes the phosphorylation of β-catenin, resulting in proteasomal degradation of β-catenin and increases the expression of pro-apoptotic factor Bax and decreases the expression of pro-survival factor survivin. (E)-Ferulic acid shows a potent ability to remove reactive oxygen species (ROS) and inhibits lipid peroxidation. (E)-Ferulic acid exerts both anti-proliferation and anti-migration effects in the human lung cancer cell line H1299[1]. Ferulic acid is a novel fibroblast growth factor receptor 1 (FGFR1) inhibitor with IC50s of 3.78 and 12.5 μM for FGFR1 and FGFR2, respectively. Ferulic acid is a novel fibroblast growth factor receptor 1 (FGFR1) inhibitor with IC50s of 3.78 and 12.5 μM for FGFR1 and FGFR2, respectively.

putrescine

C4H12N2 (88.1)

L-glutamic acid

C5H9NO4 (147.0532)

MS2 deconvoluted using MS2Dec from all ion fragmentation data, MetaboLights identifier MTBLS1040; WHUUTDBJXJRKMK-VKHMYHEASA-N_STSL_0113_Glutamic acid_8000fmol_180425_S2_LC02_MS02_66; Spectrum acquired as described in Naz et al 2017 PMID 28641411. Preparation and submission to MassBank of North America by Chaleckis R. and Tada I. MS2 deconvoluted using CorrDec from all ion fragmentation data, MetaboLights identifier MTBLS1040; Spectrum acquired as described in Naz et al 2017 PMID 28641411. Preparation and submission to MassBank of North America by Chaleckis R. and Tada I. L-Glutamic acid acts as an excitatory transmitter and an agonist at all subtypes of glutamate receptors (metabotropic, kainate, NMDA, and AMPA). L-Glutamic acid shows a direct activating effect on the release of DA from dopaminergic terminals. L-Glutamic acid is an excitatory amino acid neurotransmitter that acts as an agonist for all subtypes of glutamate receptors (metabolic rhodophylline, NMDA, and AMPA). L-Glutamic acid has an agonist effect on the release of DA from dopaminergic nerve endings. L-Glutamic acid can be used in the study of neurological diseases[1][2][3][4][5]. L-Glutamic acid acts as an excitatory transmitter and an agonist at all subtypes of glutamate receptors (metabotropic, kainate, NMDA, and AMPA). L-Glutamic acid shows a direct activating effect on the release of DA from dopaminergic terminals.

Orotic acid

C5H4N2O4 (156.0171)

A pyrimidinemonocarboxylic acid that is uracil bearing a carboxy substituent at position C-6. Orotic acid (6-Carboxyuracil), a precursor in biosynthesis of pyrimidine nucleotides and RNA, is released from the mitochondrial dihydroorotate dehydrogenase (DHODH) for conversion to UMP by the cytoplasmic UMP synthase enzyme. Orotic acid is a marker for measurement in routine newborn screening for urea cycle disorders. Orotic acid can induce hepatic steatosis and hepatomegaly in rats[1][2][3].

L-Homoserine

C4H9NO3 (119.0582)

The L-enantiomer of homoserine. L-Homoserine is a non - protein amino acid, which is an important biosynthetic intermediate of threonine, methionine and lysine. L-Homoserine is a non - protein amino acid, which is an important biosynthetic intermediate of threonine, methionine and lysine.

Citric Acid

C6H8O7 (192.027)

Citric acid is a natural preservative and food tartness enhancer. Citric acid induces apoptosis and cell cycle arrest at G2/M phase and S phase in HaCaT cells. Citric acid cause oxidative damage of the liver by means of the decrease of antioxidative enzyme activities. Citric acid causes renal toxicity in mice[1][2][3]. Citric acid is a natural preservative and food tartness enhancer. Citric acid induces apoptosis and cell cycle arrest at G2/M phase and S phase in HaCaT cells. Citric acid cause oxidative damage of the liver by means of the decrease of antioxidative enzyme activities. Citric acid causes renal toxicity in mice[1][2][3].

Succinic acid

C4H6O4 (118.0266)

Succinic acid is a potent and orally active anxiolytic agent. Succinic acid is an intermediate product of the tricarboxylic acid cycle. Succinic acid can be used as a precursor of many industrially important chemicals in food, chemical and pharmaceutical industries[1][2]. Succinic acid is a potent and orally active anxiolytic agent. Succinic acid is an intermediate product of the tricarboxylic acid cycle. Succinic acid can be used as a precursor of many industrially important chemicals in food, chemical and pharmaceutical industries[1][2].

cis-Aconitic acid

C6H6O6 (174.0164)

The cis-isomer of aconitic acid. (Z)-Aconitic acid (cis-Aconitic acid) is the cis-isomer of Aconitic acid. (Z)-Aconitic acid (cis-Aconitic acid) is an intermediate in the tricarboxylic acid cycle produced by the dehydration of citric acid. (Z)-Aconitic acid (cis-Aconitic acid) is the cis-isomer of Aconitic acid. (Z)-Aconitic acid (cis-Aconitic acid) is an intermediate in the tricarboxylic acid cycle produced by the dehydration of citric acid.

2-Isopropylmalic acid

C7H12O5 (176.0685)

A dicarboxylic acid that is malic acid (2-hydroxysuccinic acid) in which the hydrogen at position 2 is substituted by an isopropyl group. α-Isopropylmalate (α-IPM) is the leucine biosynthetic precursor in Yeast[1].

Raffinose

C18H32O16 (504.169)

Origin: Plant; Formula(Parent): C18H32O16; Bottle Name:D-(+)-Raffinose pentahydrate; PRIME Parent Name:D-Raffinose; PRIME in-house No.:V0044, Polysaccharides Raffinose (Melitose), a non-digestible short-chain?oligosaccharide, is a trisaccharide composed of galactose, glucose, and fructose and can be found in many plants. Raffinose (Melitose) can be hydrolyzed to D-galactose and sucrose by the enzyme α-galactosidase (α-GAL)[1]. Raffinose (Melitose), a non-digestible short-chain?oligosaccharide, is a trisaccharide composed of galactose, glucose, and fructose and can be found in many plants. Raffinose (Melitose) can be hydrolyzed to D-galactose and sucrose by the enzyme α-galactosidase (α-GAL)[1].

Epigallocatechin

C15H14O7 (306.0739)

CONFIDENCE Reference Standard (Level 1); INTERNAL_ID 28 INTERNAL_ID 28; CONFIDENCE Reference Standard (Level 1) (-)-Epigallocatechin (Epigallocatechin) is the most abundant flavonoid in green tea, can bind to unfolded native polypeptides and prevent conversion to amyloid fibrils. (-)-Epigallocatechin (Epigallocatechin) is the most abundant flavonoid in green tea, can bind to unfolded native polypeptides and prevent conversion to amyloid fibrils. (-)-Epigallocatechin (Epigallocatechin) is the most abundant flavonoid in green tea, can bind to unfolded native polypeptides and prevent conversion to amyloid fibrils. (-)-Epigallocatechin (Epigallocatechin) is the most abundant flavonoid in green tea, can bind to unfolded native polypeptides and prevent conversion to amyloid fibrils.

L-Aspartic Acid

C4H7NO4 (133.0375)

The L-enantiomer of aspartic acid. MS2 deconvoluted using MS2Dec from all ion fragmentation data, MetaboLights identifier MTBLS1040; CKLJMWTZIZZHCS_STSL_0112_Aspartic acid_2000fmol_180430_S2_LC02_MS02_26; Spectrum acquired as described in Naz et al 2017 PMID 28641411. Preparation and submission to MassBank of North America by Chaleckis R. and Tada I. MS2 deconvoluted using CorrDec from all ion fragmentation data, MetaboLights identifier MTBLS1040; Spectrum acquired as described in Naz et al 2017 PMID 28641411. Preparation and submission to MassBank of North America by Chaleckis R. and Tada I. L-Aspartic acid is is an amino acid, shown to be a suitable proagent for colon-specific agent deliverly. L-Aspartic acid is is an amino acid, shown to be a suitable proagent for colon-specific agent deliverly.

p-Hydroxybenzoic acid

C7H6O3 (138.0317)

4-Hydroxybenzoic acid, a phenolic derivative of benzoic acid, could inhibit most gram-positive and some gram-negative bacteria, with an IC50 of 160 μg/mL. 4-Hydroxybenzoic acid, a phenolic derivative of benzoic acid, could inhibit most gram-positive and some gram-negative bacteria, with an IC50 of 160 μg/mL.

D-Glucose

C6H12O6 (180.0634)

B - Blood and blood forming organs > B05 - Blood substitutes and perfusion solutions > B05C - Irrigating solutions V - Various > V04 - Diagnostic agents > V04C - Other diagnostic agents > V04CA - Tests for diabetes V - Various > V06 - General nutrients > V06D - Other nutrients > V06DC - Carbohydrates COVID info from clinicaltrial, clinicaltrials, clinical trial, clinical trials D000074385 - Food Ingredients > D005503 - Food Additives D010592 - Pharmaceutic Aids > D005421 - Flavoring Agents Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS Occurs free in fruits, honey and plant juices. Major component of many oligosaccharides and polysaccharides. Occurs in sucrose combined with fructose. Comly. available by the acid hydrol. of potato starch (Europe) and cornstarch (USA). Food additive: nutritive sweetener, humectant. D-Glucose is found in many foods, some of which are wheat bread, sour cherry, toffee, and other soy product.

Fumaric Acid

C4H4O4 (116.011)

Fumaric acid, associated with fumarase deficiency, is identified as an oncometabolite or an endogenous, cancer causing metabolite. Fumaric acid, associated with fumarase deficiency, is identified as an oncometabolite or an endogenous, cancer causing metabolite.

uric acid

C5H4N4O3 (168.0283)

D020011 - Protective Agents > D000975 - Antioxidants MS2 deconvoluted using MS2Dec from all ion fragmentation data, MetaboLights identifier MTBLS1040; LEHOTFFKMJEONL_STSL_0178_Uric acid_0500fmol_180430_S2_LC02_MS02_188; Spectrum acquired as described in Naz et al 2017 PMID 28641411. Preparation and submission to MassBank of North America by Chaleckis R. and Tada I. MS2 deconvoluted using CorrDec from all ion fragmentation data, MetaboLights identifier MTBLS1040; Spectrum acquired as described in Naz et al 2017 PMID 28641411. Preparation and submission to MassBank of North America by Chaleckis R. and Tada I. Uric acid, scavenger of oxygen radical, is a very important antioxidant that help maintains the stability of blood pressure and antioxidant stress. Uric acid can remove reactive oxygen species (ROS) such as singlet oxygen and peroxynitrite, inhibiting lipid peroxidation[1][2]. Uric acid, scavenger of oxygen radical, is a very important antioxidant that help maintains the stability of blood pressure and antioxidant stress. Uric acid can remove reactive oxygen species (ROS) such as singlet oxygen and peroxynitrite, inhibiting lipid peroxidation[1][2].

ribitol

C5H12O5 (152.0685)

D-Arabitol is a polyol and its accumulation may cause a neurotoxic effect in human. D-Arabitol is a polyol and its accumulation may cause a neurotoxic effect in human. Ribitol is a crystalline pentose alcohol formed by the reduction of ribose. Enhancing the flux of D-glucose to the pentose phosphate pathway in Saccharomyces cerevisiae for the production of D-ribose and ribitol. Ribitol is a crystalline pentose alcohol formed by the reduction of ribose. Enhancing the flux of D-glucose to the pentose phosphate pathway in Saccharomyces cerevisiae for the production of D-ribose and ribitol.

Galactonic acid

C6H12O7 (196.0583)

Glucaric acid

C6H10O8 (210.0376)

malonic acid

C3H4O4 (104.011)

An alpha,omega-dicarboxylic acid in which the two carboxy groups are separated by a single methylene group.

Spermidine

C7H19N3 (145.1579)

COVID info from clinicaltrial, clinicaltrials, clinical trial, clinical trials A triamine that is the 1,5,10-triaza derivative of decane. Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS Spermidine, also known as N-(3-aminopropyl)-1,4-butane-diamine or 1,5,10-triazadecane, is a member of the class of compounds known as dialkylamines. Dialkylamines are organic compounds containing a dialkylamine group, characterized by two alkyl groups bonded to the amino nitrogen. Spermidine is soluble (in water) and a very strong basic compound (based on its pKa). Spermidine can be found in radish, which makes spermidine a potential biomarker for the consumption of this food product. Spermidine can be found primarily in most biofluids, including urine, blood, saliva, and feces, as well as throughout most human tissues. Spermidine exists in all living organisms, ranging from bacteria to humans. In humans, spermidine is involved in a couple of metabolic pathways, which include methionine metabolism and spermidine and spermine biosynthesis. Spermidine is also involved in several metabolic disorders, some of which include homocystinuria-megaloblastic anemia due to defect in cobalamin metabolism, cblg complementation type, methionine adenosyltransferase deficiency, s-adenosylhomocysteine (SAH) hydrolase deficiency, and hypermethioninemia. Spermidine is a non-carcinogenic (not listed by IARC) potentially toxic compound. Spermidine is a polyamine compound (C 7H 19N 3) found in ribosomes and living tissues, and having various metabolic functions within organisms. It was originally isolated from semen . As a uremic toxin, this compound can cause uremic syndrome. Uremic syndrome may affect any part of the body and can cause nausea, vomiting, loss of appetite, and weight loss. It can also cause changes in mental status, such as confusion, reduced awareness, agitation, psychosis, seizures, and coma. Abnormal bleeding, such as bleeding spontaneously or profusely from a very minor injury can also occur. Heart problems, such as an irregular heartbeat, inflammation in the sac that surrounds the heart (pericarditis), and increased pressure on the heart can be seen in patients with uremic syndrome. Shortness of breath from fluid buildup in the space between the lungs and the chest wall (pleural effusion) can also be present (T3DB). Spermidine maintains cell membrane stability, increases antioxidant enzymes activities, improving photosystem II (PSII), and relevant gene expression. Spermidine significantly decreases the H2O2 and O2.- contents[1]. Spermidine maintains cell membrane stability, increases antioxidant enzymes activities, improving photosystem II (PSII), and relevant gene expression. Spermidine significantly decreases the H2O2 and O2.- contents[1].

Dehydroascorbic acid

C6H6O6 (174.0164)

D018977 - Micronutrients > D014815 - Vitamins Dehydroascorbic acid, a blood-brain barrier transportable form of vitamin C, mediates potent cerebroprotection in experimental stroke. Dehydroascorbic acid, a blood-brain barrier transportable form of vitamin C, mediates potent cerebroprotection in experimental stroke.

oxalic acid

C2H2O4 (89.9953)

An alpha,omega-dicarboxylic acid that is ethane substituted by carboxyl groups at positions 1 and 2. D019995 - Laboratory Chemicals > D007202 - Indicators and Reagents > D019163 - Reducing Agents Oxalic Acid is a strong dicarboxylic acid occurring in many plants and vegetables and can be used as an analytical reagent and general reducing agent. Oxalic Acid is a strong dicarboxylic acid occurring in many plants and vegetables and can be used as an analytical reagent and general reducing agent.

Gulonic acid

C6H12O7 (196.0583)

hydroxylamine

H3NO (33.0215)

The simplest hydroxylamine, consisting of ammonia bearing a hydroxy substituent. It is an intermediate in the biological nitrification by microbes like bacteria.

(1S,3R,4S,5R)-1,3,4,5-tetrahydroxycyclohexane-1-carboxylic acid

C7H12O6 (192.0634)

Lotaustralin

C11H19NO6 (261.1212)

Lotaustralin is a cyanogenic glycoside. Lotaustralin is a natural product found in Osteospermum ecklonis, Lotus arenarius, and other organisms with data available. Lotaustralin is a cyanogenic glucoside isolated from Manihot esculenta [1].

3-Hydroxy-3-methylglutaric acid

C6H10O5 (162.0528)

D057847 - Lipid Regulating Agents > D000960 - Hypolipidemic Agents > D000924 - Anticholesteremic Agents C - Cardiovascular system > C10 - Lipid modifying agents > C10A - Lipid modifying agents, plain D004791 - Enzyme Inhibitors > D019161 - Hydroxymethylglutaryl-CoA Reductase Inhibitors C78276 - Agent Affecting Digestive System or Metabolism > C29703 - Antilipidemic Agent D009676 - Noxae > D000963 - Antimetabolites Meglutol is an antilipidemic agent that lowers cholesterol, triglycerides, and serum beta-lipoproteins and phospholipids, and inhibits hydroxymethylglutaryl-CoA reductase activity, which is the rate-limiting enzyme in cholesterol biosynthesis. Meglutol is an antilipidemic agent that lowers cholesterol, triglycerides, and serum beta-lipoproteins and phospholipids, and inhibits hydroxymethylglutaryl-CoA reductase activity, which is the rate-limiting enzyme in cholesterol biosynthesis.

Linamarin

C10H17NO6 (247.1056)

Linamarin, a natural compound, possesses anticancer activity[1]. Linamarin, a natural compound, possesses anticancer activity[1].

4-Aminobutanoic acid

C4H9NO2 (103.0633)

Erythrit

C4H10O4 (122.0579)

D002317 - Cardiovascular Agents > D014665 - Vasodilator Agents The meso-diastereomer of butane-1,2,3,4-tetrol. meso-Erythritol is a sugar alcohol that occurs naturally in a variety of foods (e.g., pear, watermelon), is 60-80\\% as sweet as sucrose, and is an approved low-calorie sweetener food additive[1]. meso-Erythritol is a sugar alcohol that occurs naturally in a variety of foods (e.g., pear, watermelon), is 60-80\% as sweet as sucrose, and is an approved low-calorie sweetener food additive[1].

Hexadecanoic acid

C16H32O2 (256.2402)

2-HYDROXYPYRIDINE

C5H5NO (95.0371)

Aconitate

C6H6O6 (174.0164)

trans-Aconitic acid is present in normal human urine, and it has been suggested that is present in larger amounts with Reye's syndrome and organic aciduria. trans-Aconitic acid is a substrate of enzyme trans-aconitate 2-methyltransferase. trans-Aconitic acid is present in normal human urine, and it has been suggested that is present in larger amounts with Reye's syndrome and organic aciduria. trans-Aconitic acid is a substrate of enzyme trans-aconitate 2-methyltransferase.

MESO-erythritol

C4H10O4 (122.0579)

Ononitol

C7H14O6 (194.079)

N-Octadecane

C18H38 (254.2973)

A straight-chain alkane carrying 18 carbon atoms. Octadecane is an alkane that is used to store thermal energy at ambient temperature as a phase change material[1].

pinitol

C7H14O6 (194.079)

D-pinitol (3-O-Methyl-D-chiro-inositol) is a natural compound presented in several plants, like Pinaceae and Leguminosae plants. D-pinitol exerts hypoglycemic activity and protective effects in the cardiovascular system[1][2]. D-pinitol has antiviral and larvicidal activities[3]. D-pinitol (3-O-Methyl-D-chiro-inositol) is a natural compound presented in several plants, like Pinaceae and Leguminosae plants. D-pinitol exerts hypoglycemic activity and protective effects in the cardiovascular system[1][2]. D-pinitol has antiviral and larvicidal activities[3].

Docosane

C22H46 (310.3599)

Docosane, a straight chain alkane, can be used to synthesize structural composites with thermal energy storage/release capability[1][2]. Docosane, a straight chain alkane, can be used to synthesize structural composites with thermal energy storage/release capability[1][2].

OCTACOSANE

C28H58 (394.4538)

A straight-chain alkane containing 28 carbon atoms.

n-Dodecane

C12H26 (170.2034)

A straight-chain alkane with 12 carbon atoms. It has been isolated from the essential oils of various plants including Zingiber officinale (ginger). D009676 - Noxae > D002273 - Carcinogens

2-hydroxypropane-1,2,3-tricarboxylic acid

C6H8O7 (192.027)

METHYL PHOSPHATE

CH5O4P (111.9925)

AI3-63211

C9H8O4 (180.0423)

D020011 - Protective Agents > D000975 - Antioxidants Caffeic acid is an inhibitor of both TRPV1 ion channel and 5-Lipoxygenase (5-LO). Caffeic acid is an inhibitor of both TRPV1 ion channel and 5-Lipoxygenase (5-LO). Caffeic acid is an inhibitor of both TRPV1 ion channel and 5-Lipoxygenase (5-LO).

Harzol

C29H50O (414.3861)

C1907 - Drug, Natural Product > C28178 - Phytosterol > C68437 - Unsaturated Phytosterol D057847 - Lipid Regulating Agents > D000960 - Hypolipidemic Agents D009676 - Noxae > D000963 - Antimetabolites Beta-Sitosterol (purity>98\\%) is a plant sterol. Beta-Sitosterol (purity>98\\%) interfere with multiple cell signaling pathways, including cell cycle, apoptosis, proliferation, survival, invasion, angiogenesis, metastasis and inflammation[1]. Beta-Sitosterol (purity>98\%) is a plant sterol. Beta-Sitosterol (purity>98\%) interfere with multiple cell signaling pathways, including cell cycle, apoptosis, proliferation, survival, invasion, angiogenesis, metastasis and inflammation[1].

KB-53

C15H14O6 (290.079)

Catechin ((+)-Catechin) inhibits cyclooxygenase-1 (COX-1) with an IC50 of 1.4 μM. Catechin ((+)-Catechin) inhibits cyclooxygenase-1 (COX-1) with an IC50 of 1.4 μM.

Coumarate

C9H8O3 (164.0473)

D012102 - Reproductive Control Agents > D003270 - Contraceptive Agents D000975 - Antioxidants > D016166 - Free Radical Scavengers D020011 - Protective Agents > D000975 - Antioxidants D000890 - Anti-Infective Agents p-Coumaric acid is the abundant isomer of cinnamic acid which has antitumor and anti-mutagenic activities. p-Coumaric acid is the abundant isomer of cinnamic acid which has antitumor and anti-mutagenic activities. p-Hydroxycinnamic acid, a common dietary phenol, could inhibit platelet activity, with IC50s of 371 μM, 126 μM for thromboxane B2 production and lipopolysaccharide-induced prostaglandin E2 generation, respectively. p-Hydroxycinnamic acid, a common dietary phenol, could inhibit platelet activity, with IC50s of 371 μM, 126 μM for thromboxane B2 production and lipopolysaccharide-induced prostaglandin E2 generation, respectively.

Gossypose

C18H32O16 (504.169)

COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS Raffinose (Melitose), a non-digestible short-chain?oligosaccharide, is a trisaccharide composed of galactose, glucose, and fructose and can be found in many plants. Raffinose (Melitose) can be hydrolyzed to D-galactose and sucrose by the enzyme α-galactosidase (α-GAL)[1]. Raffinose (Melitose), a non-digestible short-chain?oligosaccharide, is a trisaccharide composed of galactose, glucose, and fructose and can be found in many plants. Raffinose (Melitose) can be hydrolyzed to D-galactose and sucrose by the enzyme α-galactosidase (α-GAL)[1].

Dodekan

C12H26 (170.2034)

D009676 - Noxae > D002273 - Carcinogens

Oktadekan

C18H38 (254.2973)

Octadecane is an alkane that is used to store thermal energy at ambient temperature as a phase change material[1].

Dokosan

C22H46 (310.3599)

Docosane, a straight chain alkane, can be used to synthesize structural composites with thermal energy storage/release capability[1][2]. Docosane, a straight chain alkane, can be used to synthesize structural composites with thermal energy storage/release capability[1][2].

AI3-52615

C28H58 (394.4538)

Tyramin

C8H11NO (137.0841)

D018377 - Neurotransmitter Agents > D014179 - Neurotransmitter Uptake Inhibitors > D018759 - Adrenergic Uptake Inhibitors D018373 - Peripheral Nervous System Agents > D001337 - Autonomic Agents > D013566 - Sympathomimetics D018377 - Neurotransmitter Agents > D018663 - Adrenergic Agents D049990 - Membrane Transport Modulators Tyramine is an amino acid that helps regulate blood pressure. Tyramine occurs naturally in the body, and it's found in certain foods[1]. Tyramine is an amino acid that helps regulate blood pressure. Tyramine occurs naturally in the body, and it's found in certain foods[1].

vitamin C

C6H8O6 (176.0321)

G - Genito urinary system and sex hormones > G01 - Gynecological antiinfectives and antiseptics > G01A - Antiinfectives and antiseptics, excl. combinations with corticosteroids > G01AD - Organic acids A - Alimentary tract and metabolism > A11 - Vitamins > A11G - Ascorbic acid (vitamin c), incl. combinations > A11GA - Ascorbic acid (vitamin c), plain B - Blood and blood forming organs > B03 - Antianemic preparations > B03A - Iron preparations > B03AA - Iron bivalent, oral preparations COVID info from clinicaltrial, clinicaltrials, clinical trial, clinical trials D020011 - Protective Agents > D000975 - Antioxidants C26170 - Protective Agent > C275 - Antioxidant D018977 - Micronutrients > D014815 - Vitamins S - Sensory organs > S01 - Ophthalmologicals Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS L-Ascorbic acid (L-Ascorbate), an electron donor, is an endogenous antioxidant agent. L-Ascorbic acid inhibits selectively Cav3.2 channels with an IC50 of 6.5 μM. L-Ascorbic acid is also a collagen deposition enhancer and an elastogenesis inhibitor[1][2][3]. L-Ascorbic acid exhibits anti-cancer effects through the generation of reactive oxygen species (ROS) and selective damage to cancer cells[4]. L-Ascorbic acid (L-Ascorbate), an electron donor, is an endogenous antioxidant agent. L-Ascorbic acid inhibits selectively Cav3.2 channels with an IC50 of 6.5 μM. L-Ascorbic acid is also a collagen deposition enhancer and an elastogenesis inhibitor[1][2][3]. L-Ascorbic acid exhibits anti-cancer effects through the generation of reactive oxygen species (ROS) and selective damage to cancer cells[4].

Spermidin

C7H19N3 (145.1579)

COVID info from clinicaltrial, clinicaltrials, clinical trial, clinical trials Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS Spermidine maintains cell membrane stability, increases antioxidant enzymes activities, improving photosystem II (PSII), and relevant gene expression. Spermidine significantly decreases the H2O2 and O2.- contents[1]. Spermidine maintains cell membrane stability, increases antioxidant enzymes activities, improving photosystem II (PSII), and relevant gene expression. Spermidine significantly decreases the H2O2 and O2.- contents[1].

(2S)-2,3-dihydroxypropanoic acid

C3H6O4 (106.0266)

Putreszin

C4H12N2 (88.1)

591-81-1

C4H8O3 (104.0473)

Flavan-3,3,4,5,5,7-hexol

C15H14O7 (306.0739)

A hydroxyflavan that is 3,4-dihydro-2H-chromene which is substituted at positions 3, 5, and 7 by hydroxy groups, and at position 2 by a 3,4,5-trihydroxyphenyl group.

(2S)-6-amino-2-azaniumylhexanoate

C6H14N2O2 (146.1055)

Quinic_acid

C7H12O6 (192.0634)

(-)-quinic acid is the (-)-enantiomer of quinic acid. It is a conjugate acid of a (-)-quinate. It is an enantiomer of a (+)-quinic acid. Quinate is a metabolite found in or produced by Escherichia coli (strain K12, MG1655). Quinic acid is a natural product found in Gamblea innovans, Pterocaulon virgatum, and other organisms with data available. An acid which is found in cinchona bark and elsewhere in plants. (From Stedman, 26th ed) D-(-)-Quinic acid is a cyclohexanecarboxylic acid and is implicated in the perceived acidity of coffee. D-(-)-Quinic acid is a cyclohexanecarboxylic acid and is implicated in the perceived acidity of coffee.

Vitamin_C

C6H8O6 (176.0321)

L-ascorbic acid is a white to very pale yellow crystalline powder with a pleasant sharp acidic taste. Almost odorless. (NTP, 1992) L-ascorbic acid is the L-enantiomer of ascorbic acid and conjugate acid of L-ascorbate. It has a role as a coenzyme, a flour treatment agent, a food antioxidant, a plant metabolite, a cofactor, a skin lightening agent and a geroprotector. It is an ascorbic acid and a vitamin C. It is a conjugate acid of a L-ascorbate. It is an enantiomer of a D-ascorbic acid. A six carbon compound related to glucose. It is found naturally in citrus fruits and many vegetables. Ascorbic acid is an essential nutrient in human diets, and necessary to maintain connective tissue and bone. Its biologically active form, vitamin C, functions as a reducing agent and coenzyme in several metabolic pathways. Vitamin C is considered an antioxidant. Ascorbic acid is a metabolite found in or produced by Escherichia coli (strain K12, MG1655). Ascorbic acid is a Vitamin C. Ascorbic Acid is a natural product found in Populus tremula, Rosa platyacantha, and other organisms with data available. Ascorbic Acid is a natural water-soluble vitamin (Vitamin C). Ascorbic acid is a potent reducing and antioxidant agent that functions in fighting bacterial infections, in detoxifying reactions, and in the formation of collagen in fibrous tissue, teeth, bones, connective tissue, skin, and capillaries. Found in citrus and other fruits, and in vegetables, vitamin C cannot be produced or stored by humans and must be obtained in the diet. (NCI04) A six carbon compound related to glucose. It is found naturally in citrus fruits and many vegetables. Ascorbic acid is an essential nutrient in human diets, and necessary to maintain connective tissue and bone. Its biologically active form, vitamin C, functions as a reducing agent and coenzyme in several metabolic pathways. Vitamin C is considered an antioxidant. See also: Sodium Ascorbate (active moiety of); D-ascorbic acid (related); Magnesium Ascorbyl Phosphate (active moiety of) ... View More ... G - Genito urinary system and sex hormones > G01 - Gynecological antiinfectives and antiseptics > G01A - Antiinfectives and antiseptics, excl. combinations with corticosteroids > G01AD - Organic acids A - Alimentary tract and metabolism > A11 - Vitamins > A11G - Ascorbic acid (vitamin c), incl. combinations > A11GA - Ascorbic acid (vitamin c), plain B - Blood and blood forming organs > B03 - Antianemic preparations > B03A - Iron preparations > B03AA - Iron bivalent, oral preparations COVID info from clinicaltrial, clinicaltrials, clinical trial, clinical trials D020011 - Protective Agents > D000975 - Antioxidants C26170 - Protective Agent > C275 - Antioxidant D018977 - Micronutrients > D014815 - Vitamins S - Sensory organs > S01 - Ophthalmologicals Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS L-Ascorbic acid (L-Ascorbate), an electron donor, is an endogenous antioxidant agent. L-Ascorbic acid inhibits selectively Cav3.2 channels with an IC50 of 6.5 μM. L-Ascorbic acid is also a collagen deposition enhancer and an elastogenesis inhibitor[1][2][3]. L-Ascorbic acid exhibits anti-cancer effects through the generation of reactive oxygen species (ROS) and selective damage to cancer cells[4]. L-Ascorbic acid (L-Ascorbate), an electron donor, is an endogenous antioxidant agent. L-Ascorbic acid inhibits selectively Cav3.2 channels with an IC50 of 6.5 μM. L-Ascorbic acid is also a collagen deposition enhancer and an elastogenesis inhibitor[1][2][3]. L-Ascorbic acid exhibits anti-cancer effects through the generation of reactive oxygen species (ROS) and selective damage to cancer cells[4].

L-Threonic acid

C4H8O5 (136.0372)

The L-enantiomer of threonic acid.

D-galactonic acid

C6H12O7 (196.0583)

A galactonic acid compound having D-configuration.

Inositol 1-phosphate

C6H13O9P (260.0297)

D-Citramalic acid

C5H8O5 (148.0372)

The D-enantiomer of citramalic acid.

Methyl dihydrogen phosphate

CH5O4P (111.9925)

A monoalkyl phosphate having methyl as the alkyl group.

3-Cyanoalanine

C4H6N2O2 (114.0429)

9H-purine-2,6,8-triol

C5H4N4O3 (168.0283)

(-)-quinic acid

C7H12O6 (192.0634)

The (-)-enantiomer of quinic acid.

Pyridin-2-ol

C5H5NO (95.0371)

A monohydroxypyridine that is pyridine substituted by a hydroxy group at position 2.

β-maltose

C12H22O11 (342.1162)

(4r)-4-{[(2s,3r,4s,5r)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]oxy}-2-methyl-5,6-dihydro-3h-pyrimidine-4-carboxylic acid

C11H18N2O7 (290.1114)

2-methyl-2-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}butanenitrile

C11H19NO6 (261.1212)

4-{[3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]oxy}-2-methyl-5,6-dihydro-3h-pyrimidine-4-carboxylic acid

C11H18N2O7 (290.1114)

pyrotartaric acid

C5H8O5 (148.0372)

(2r,3s)-2,3-diaminobutanoic acid

C4H10N2O2 (118.0742)

(2s,3s)-2,3-diaminobutanoic acid

C4H10N2O2 (118.0742)

(2s,3r,4s,5r)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl (4r)-2-methyl-3,4,5,6-tetrahydropyrimidine-4-carboperoxoate

C11H18N2O7 (290.1114)