Gene Association: EHHADH
UniProt Search:
EHHADH (PROTEIN_CODING)
Function Description: enoyl-CoA hydratase and 3-hydroxyacyl CoA dehydrogenase
found 130 associated metabolites with current gene based on the text mining result from the pubmed database.
Betulafolienetriol
Protopanaxadiol is found in tea. Sapogenin of Ginsenosides Rb1, Rb2 and Re from Panax ginseng (ginseng) Protopanaxadiol (PPD) is an organic coumpound characterizing a group of ginsenosides. It is a dammarane-type tetracyclic terpene sapogenin found in ginseng (Panax ginseng) and in notoginseng (Panax pseudoginseng) (20S)-protopanaxadiol is a diastereomer of protopanaxadiol in which the 20-hydroxy substituent has been introduced at the pro-S position. (20S)-Protopanaxadiol is a natural product found in Gynostemma pentaphyllum, Panax ginseng, and Aralia elata with data available. 20S-protopanaxadiol (aPPD) is a metabolite of ginseng saponins, inhibits Akt activity and induces apoptosis in various tumor cells[1]. 20S-protopanaxadiol (aPPD) is a metabolite of ginseng saponins, inhibits Akt activity and induces apoptosis in various tumor cells[1].
L-Threonine
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].
Gynosaponin S
Gypenoside XVII is a ginsenoside found in Panax species that is dammarane which is substituted by hydroxy groups at the 3beta, 12beta and 20 pro-S positions, in which the hydroxy groups at positions 3 and 20 have been converted to the corresponding beta-D-glucopyranoside and beta-D-glucopyranosyl-(1->6)-beta-D-glucopyranoside respectively, and in which a double bond has been introduced at the 24-25 position. It has a role as a plant metabolite. It is a 12beta-hydroxy steroid, a beta-D-glucoside, a disaccharide derivative, a ginsenoside and a tetracyclic triterpenoid. It derives from a hydride of a dammarane. Gypenoside XVII is a natural product found in Panax vietnamensis, Gynostemma pentaphyllum, and other organisms with data available. Gynosaponin S is found in tea. Gynosaponin S is a constituent of Panax species. Constituent of Panax subspecies Gynosaponin S is found in tea. Gypenoside XVII, a novel phytoestrogen belonging to the gypenosides, can activate estrogen receptors. Gypenoside XVII, a novel phytoestrogen belonging to the gypenosides, can activate estrogen receptors.
Ginsenoside F2
Ginsenoside F2 is a ginsenoside found in Panax species that is dammarane which is substituted by hydroxy groups at the 3beta, 12beta and 20 pro-S positions, in which the hydroxy groups at positions 3 and 20 have been converted to the corresponding beta-D-glucopyranosides, and in which a double bond has been introduced at the 24-25 position. It has a role as an apoptosis inducer, an antineoplastic agent and a plant metabolite. It is a ginsenoside, a tetracyclic triterpenoid, a 12beta-hydroxy steroid and a beta-D-glucoside. It derives from a hydride of a dammarane. ginsenoside F2 is a natural product found in Panax ginseng, Panax notoginseng, and Aralia elata with data available. Ginsenoside F2 is found in tea. Ginsenoside F2 is isolated from Panax species. Isolated from Panax subspecies Ginsenoside F2 is found in tea. Ginsenoside F2, a metabolite from Ginsenoside Rb1, induces apoptosis accompanied by protective autophagy in breast cancer stem cells[1]. Ginsenoside F2, a metabolite from Ginsenoside Rb1, induces apoptosis accompanied by protective autophagy in breast cancer stem cells[1].
Tabersonine
Tabersonine is a monoterpenoid indole alkaloid with cytotoxic activity. It has a role as an antineoplastic agent and a metabolite. It is an alkaloid ester, a monoterpenoid indole alkaloid, a methyl ester and an organic heteropentacyclic compound. It is a conjugate base of a tabersoninium(1+). Tabersonine is a natural product found in Voacanga schweinfurthii, Tabernaemontana citrifolia, and other organisms with data available. A monoterpenoid indole alkaloid with cytotoxic activity. Annotation level-1 Tabersonine is an indole alkaloid mainly isolated from Catharanthus roseus. Tabersonine disrupts Aβ(1-42) aggregation and ameliorates Aβ aggregate-induced cytotoxicity. Tabersonine has anti-inflammatory activities and acts as a potential therapeutic candidate for the treatment of ALI/ARDS[1]. Tabersonine is an indole alkaloid mainly isolated from Catharanthus roseus. Tabersonine disrupts Aβ(1-42) aggregation and ameliorates Aβ aggregate-induced cytotoxicity. Tabersonine has anti-inflammatory activities and acts as a potential therapeutic candidate for the treatment of ALI/ARDS[1].
Glycyrrhetinic acid
Glycyrrhetinic acid is a pentacyclic triterpenoid that is olean-12-ene substituted by a hydroxy group at position 3, an oxo group at position 11 and a carboxy group at position 30. It has a role as an immunomodulator and a plant metabolite. It is a pentacyclic triterpenoid, a cyclic terpene ketone and a hydroxy monocarboxylic acid. It is a conjugate acid of a glycyrrhetinate. It derives from a hydride of an oleanane. Enoxolone (glycyrrhetic acid) has been investigated for the basic science of Apparent Mineralocorticoid Excess (AME). Enoxolone is a natural product found in Glycyrrhiza, Echinopora lamellosa, and other organisms with data available. Enoxolone is a pentacyclic triterpenoid aglycone metabolite of glycyrrhizin, which is a product of the plant Glycyrrhiza glabra (licorice), with potential expectorant, and gastrokinetic activities. After administration, enoxolone inhibits the metabolism of prostaglandins by both 15-hydroxyprostaglandin dehydrogenase [NAD(+)] and prostaglandin reductase 2. Therefore, this agent potentiates the activity of prostaglandin E2 and F2alpha, which inhibits gastric secretion while stimulating pancreatic secretion and the secretion of intestinal and respiratory mucus, leading to increased intestinal motility and antitussive effects. Additionally, this agent inhibits 11 beta-hydroxysteroid dehydrogenase and other enzymes involved in the conversion of cortisol to cortisone in the kidneys. An oleanolic acid from GLYCYRRHIZA that has some antiallergic, antibacterial, and antiviral properties. It is used topically for allergic or infectious skin inflammation and orally for its aldosterone effects in electrolyte regulation. See also: Glycyrrhizin (is active moiety of); Glycyrrhiza Glabra (part of). Glycyrrhetinic acid is a pentacyclic triterpenoid derivative of the beta-amyrin type obtained from the hydrolysis of glycyrrhizic acid, which was first obtained from the herb liquorice. It is used in flavouring and it masks the bitter taste of drugs like aloe and quinine. It is effective in the treatment of peptic ulcer and also has expectorant (antitussive) properties (PMID:32106571). In glycyrrhetinic acid the functional group (R) is a hydroxyl group. Research in 2005 demonstrated that with a proper functional group a very effective glycyrrhetinic artificial sweetener can be obtained. When R is an anionic NHCO(CH2)CO2K side chain, the sweetening effect is found to 1200 times that of sugar (human sensory panel data). A shorter or longer spacer reduces the sweetening effect. One explanation is that the taste bud cell receptor has 1.3 nanometers (13 angstroms) available for docking with the sweetener molecule. In addition the sweetener molecule requires three proton donor positions of which two reside at the extremities to be able to interact efficiently with the receptor cavity. 18α-Glycyrrhetinic acid, a diet-derived compound, is an inhibitor of NF-kB and an activator of proteasome, which serves as pro-longevity and anti-aggregation factor in a multicellular organism. 18α-Glycyrrhetinic acid induces apoptosis[1][2]. 18α-Glycyrrhetinic acid, a diet-derived compound, is an inhibitor of NF-kB and an activator of proteasome, which serves as pro-longevity and anti-aggregation factor in a multicellular organism. 18α-Glycyrrhetinic acid induces apoptosis[1][2]. 18β-Glycyrrhetinic acid is the major bioactive component of Glycyrrhiza uralensis and possesses anti-ulcerative, anti-inflammatory and antiproliferative properties. 18β-Glycyrrhetinic acid is the major bioactive component of Glycyrrhiza uralensis and possesses anti-ulcerative, anti-inflammatory and antiproliferative properties.
Linamarin
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].
2,5-Bis(hydroxymethyl)furan
2,5-furandimethanol is a furan carrying two hydroxymethyl substituents at the 2- and 5-positions. It is a member of furans and a diol. 2,5-Furandimethanol is a natural product found in Wallemia sebi with data available. 2,5-Furandimethanol is obtained from 5-Hydroxymethylfurfural. 5-hydroxymethylfurfural, as a building block, is considered an important intermediate due to its rich chemistry and potential availability from carbohydrates such as fructose, glucose, sucrose, cellulose and inulin[1][2]. 2,5-Furandimethanol is obtained from 5-Hydroxymethylfurfural. 5-hydroxymethylfurfural, as a building block, is considered an important intermediate due to its rich chemistry and potential availability from carbohydrates such as fructose, glucose, sucrose, cellulose and inulin[1][2].
Cyprodinil
CONFIDENCE standard compound; INTERNAL_ID 810; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 9314; ORIGINAL_PRECURSOR_SCAN_NO 9312 CONFIDENCE standard compound; INTERNAL_ID 810; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 9293; ORIGINAL_PRECURSOR_SCAN_NO 9292 CONFIDENCE standard compound; INTERNAL_ID 810; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 9313; ORIGINAL_PRECURSOR_SCAN_NO 9312 CONFIDENCE standard compound; INTERNAL_ID 810; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 9269; ORIGINAL_PRECURSOR_SCAN_NO 9268 CONFIDENCE standard compound; INTERNAL_ID 810; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 9257; ORIGINAL_PRECURSOR_SCAN_NO 9256 CONFIDENCE standard compound; INTERNAL_ID 810; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 9258; ORIGINAL_PRECURSOR_SCAN_NO 9257 CONFIDENCE standard compound; EAWAG_UCHEM_ID 148 CONFIDENCE standard compound; INTERNAL_ID 2569 KEIO_ID C172; [MS2] KO008908 Cyprodinil is a fungicide. Cyprodinil is a fungicide KEIO_ID C172
Sulfathiazole
Sulfathiazole is only found in individuals that have used or taken this drug.It is a short-acting sulfa drug. It used to be a common oral and topical antimicrobial until less toxic alternatives were discovered. It is still occasionally used, sometimes in combination with sulfabenzamide and sulfacetamide. CONFIDENCE standard compound; INTERNAL_ID 1024; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2323; ORIGINAL_PRECURSOR_SCAN_NO 2321 CONFIDENCE standard compound; INTERNAL_ID 1024; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2327; ORIGINAL_PRECURSOR_SCAN_NO 2325 CONFIDENCE standard compound; INTERNAL_ID 1024; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 7417; ORIGINAL_PRECURSOR_SCAN_NO 7415 CONFIDENCE standard compound; INTERNAL_ID 1024; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2326; ORIGINAL_PRECURSOR_SCAN_NO 2324 CONFIDENCE standard compound; INTERNAL_ID 1024; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2315; ORIGINAL_PRECURSOR_SCAN_NO 2312 CONFIDENCE standard compound; INTERNAL_ID 1024; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 7355; ORIGINAL_PRECURSOR_SCAN_NO 7354 CONFIDENCE standard compound; INTERNAL_ID 1024; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 7401; ORIGINAL_PRECURSOR_SCAN_NO 7397 CONFIDENCE standard compound; INTERNAL_ID 1024; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 7346; ORIGINAL_PRECURSOR_SCAN_NO 7344 CONFIDENCE standard compound; INTERNAL_ID 1024; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2323; ORIGINAL_PRECURSOR_SCAN_NO 2320 CONFIDENCE standard compound; INTERNAL_ID 1024; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2314; ORIGINAL_PRECURSOR_SCAN_NO 2312 CONFIDENCE standard compound; INTERNAL_ID 1024; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 7406; ORIGINAL_PRECURSOR_SCAN_NO 7404 CONFIDENCE standard compound; INTERNAL_ID 1024; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 7390; ORIGINAL_PRECURSOR_SCAN_NO 7388 D - Dermatologicals > D06 - Antibiotics and chemotherapeutics for dermatological use > D06B - Chemotherapeutics for topical use > D06BA - Sulfonamides J - Antiinfectives for systemic use > J01 - Antibacterials for systemic use > J01E - Sulfonamides and trimethoprim > J01EB - Short-acting sulfonamides C254 - Anti-Infective Agent > C29739 - Sulfonamide Anti-Infective Agent D000890 - Anti-Infective Agents > D013432 - Sulfathiazoles D000890 - Anti-Infective Agents > D013424 - Sulfanilamides CONFIDENCE standard compound; EAWAG_UCHEM_ID 185 CONFIDENCE standard compound; INTERNAL_ID 2360 CONFIDENCE standard compound; INTERNAL_ID 1023 KEIO_ID S079; [MS2] KO009251 KEIO_ID S079
Dodecanedioic acid
Dodecanedioic acid is an aliphatic dicarboxylic acid containing 12 carbon atoms. More formally it is an alpha,omega-dicarboxylic acid with both the first and last carbons of the aliphatic chain having carboxylic acids. Dodecanedioic acid is water soluble. It can be produced in yeast and fungi through the oxidation of dodecane via fungal peroxygenases (PMID: 27573441). High levels of dodecanedioic acid is an indicator of hepatic carnitine palmitoyltransferase I (CPT IA) deficiency (PMID: 16146704). CPT IA deficiency is characterized by hypoketotic dicarboxylic aciduria with high urinary levels of dodecanedioic acid. It is thought that carnitine palmitoyltransferase I may play a role in the uptake of long-chain dicarboxylic acids by mitochondria after their initial shortening by beta-oxidation in peroxisomes (PMID: 16146704). CPT IA deficiency is characterized by acute encephalopathy with hypoglycemia and hepatomegaly. Dodecanedioic acid is a dicarboxylic acid which is water soluble and involves in a metabolic pathway intermediate to those of lipids and carbohydrates. (PMID 9591306). Dodecanedioid acid is an indicator of hepatic carnitine palmitoyltransferase I (CPT IA) deficiency. CPT IA deficiency is characterized by hypoketotic dicarboxylic aciduria with high urinary levels of dodecanedioic acid. This C12 dicarboxylic aciduria suggests that carnitine palmitoyltransferase I may play a role in the uptake of long-chain dicarboxylic acids by mitochondria after their initial shortening by beta-oxidation in peroxisomes. (PMID: 16146704) [HMDB] Dodecanedioic acid (C12) is a dicarboxylic acid with a metabolic pathway intermediate to those of lipids and carbohydrates.
Suberic acid
Suberic acid, also octanedioic acid, is a dicarboxylic acid, with formula C6H12(COOH)2. It is present in the urine of patients with fatty acid oxidation disorders (PMID 10404733). A metabolic breakdown product derived from oleic acid. Elevated levels of this unstaruated dicarboxylic acid are found in individuals with medium-chain acyl-CoA dehydrogenase deficiency (MCAD). Suberic acid is also found to be associated with carnitine-acylcarnitine translocase deficiency, malonyl-Coa decarboxylase deficiency, which are also inborn errors of metabolism. Isolated from the roots of Phaseolus vulgaris (kidney bean) CONFIDENCE standard compound; INTERNAL_ID 153 KEIO_ID S013 Suberic acid (Octanedioic acid) is found to be associated with carnitine-acylcarnitine translocase deficiency, malonyl-Coa decarboxylase deficiency. Suberic acid (Octanedioic acid) is found to be associated with carnitine-acylcarnitine translocase deficiency, malonyl-Coa decarboxylase deficiency.
Pretilachlor
CONFIDENCE standard compound; EAWAG_UCHEM_ID 3117
linustatin
methapyrilene
R - Respiratory system > R06 - Antihistamines for systemic use > R06A - Antihistamines for systemic use > R06AC - Substituted ethylene diamines D002491 - Central Nervous System Agents > D002492 - Central Nervous System Depressants > D006993 - Hypnotics and Sedatives D018377 - Neurotransmitter Agents > D018494 - Histamine Agents > D006633 - Histamine Antagonists C308 - Immunotherapeutic Agent > C29578 - Histamine-1 Receptor Antagonist D018926 - Anti-Allergic Agents
Safrole
Safrole, also known as shikimol, is a colorless or slightly yellow oily liquid. It is typically extracted from the root-bark or the fruit of sassafras plants in the form of sassafras oil, or synthesized from other related methylenedioxy compounds. It is the principal component of brown camphor oil, and is found in small amounts in a wide variety of plants, where it functions as a natural pesticide. Safrole is found in anise and nutmeg. Banned by FDA for use in food. Safrole is formerly used as a food flavour It is a precursor in the synthesis of the insecticide synergist piperonyl butoxide and the recreational drug MDMA ("Ecstacy"). Safrole is a natural plant constituent, found in oil of sassafras and certain other essential oils. It is a member of the methylenedioxybenzene group of compounds, many of which (e.g. piperonyl butoxide) are extensively used as insecticide synergists. Safrole is a major source of human exposure to safrole is through consumption of spices, such as nutmeg, cinnamon and black pepper, in which safrole is a constituent. Safrole is also present in root beer, and has been used as an additive in chewing gum, toothpaste, soaps and certain pharmaceutical preparations. Safrole is a weak hepatocarcinogen and it is a matter of considerable interest whether the ally1 moiety or the methylenedioxy group, or both, are involved in the mechanism of its carcinogenesis. Safrole is extensively metabolized, giving rise to a large number of metabolites. Metabolism involves essentially two major routes, oxidation of the ally1 side chain, and oxidation of the methylenedioxy group with subsequent cleavage to form the catechol. Safrole undergoes oxidation of the allylic group to yield the 2, 3-epoxide (safrole epoxide). The dihydrodiol is one of the metabolites of safrole, and presumably arises from the hydration of the 2, 3-epoxide. The principal route of metabolism of safrole is through cleavage of the methylenedioxy group, the major metabolites being allylcatechol and its isomer, propenylcatechol. Eugenol and its isomer I-methoxy- 2-hydroxy-4-allylbenzene have been detected as minor metabolites in rat, mouse and human (PMID:6719936). The Ocotea cymbarum oil made of the Ocotea pretiosa, a plant growing in Brazil, and sassafras oil made of Sassafras albidum, a tree growing in eastern North America, are the main natural sources for safrole. It has a characteristic "candy-shop" aroma Occurs in nutmeg. Banned by FDA for use in food. Formerly used as a food flavour
Catharanthine
Catharanthine is an organic heteropentacyclic compound and monoterpenoid indole alkaloid produced by the medicinal plant Catharanthus roseus via strictosidine. It is a bridged compound, an organic heteropentacyclic compound, a methyl ester, a monoterpenoid indole alkaloid, a tertiary amino compound and an alkaloid ester. It is a conjugate base of a catharanthine(1+). Catharanthine is a natural product found in Catharanthus trichophyllus, Tabernaemontana catharinensis, and other organisms with data available. An organic heteropentacyclic compound and monoterpenoid indole alkaloid produced by the medicinal plant Catharanthus roseus via strictosidine. D000970 - Antineoplastic Agents > D014748 - Vinca Alkaloids Annotation level-1 Catharanthine is an alkaloid isolated from Catharanthus roseus, inhibits voltage-operated L-type Ca2+ channel, with anti-cancer and blood pressure-lowering activity[1]. Catharanthine is an alkaloid isolated from Catharanthus roseus, inhibits voltage-operated L-type Ca2+ channel, with anti-cancer and blood pressure-lowering activity[1].
Vindoline
Vindoline is a vinca alkaloid, an alkaloid ester, an organic heteropentacyclic compound, a methyl ester, an acetate ester, a tertiary amino compound and a tertiary alcohol. It is a conjugate base of a vindolinium(1+). Vindoline is a natural product found in Catharanthus ovalis, Catharanthus trichophyllus, and other organisms with data available. Vindoline is an indole alkaloid that exhibits antimitotic activity by inhibiting microtubule assembly. (NCI) D000970 - Antineoplastic Agents > D014748 - Vinca Alkaloids C1744 - Multidrug Resistance Modulator Vindoline, a vinca alkaloid extracted from the leaves of Catharanthus roseus, weakly inhibits tubulin self-assembly[1]. Vindoline, a vinca alkaloid extracted from the leaves of Catharanthus roseus, weakly inhibits tubulin self-assembly[1].
Pyrene
Pyrene is a polycyclic aromatic hydrocarbon (PAH) consisting of four fused benzene rings, resulting in a flat aromatic system. The chemical formula is C16H10. This colourless solid is the smallest peri-fused PAH (one where the rings are fused through more than one face). Pyrene forms during incomplete combustion of organic compounds. D019995 - Laboratory Chemicals > D007202 - Indicators and Reagents > D049408 - Luminescent Agents D004396 - Coloring Agents > D005456 - Fluorescent Dyes
Gluconolactone
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.
Alpha-Pinene-oxide
Alpha-pinene oxide is cheap monoterpene, which is important compound for the fragnance industry. Biocatalytic method is used to convert monoterpenes into terpenoids. The biotransformation of alpha-pinene oxide using resting cells of Pseudomonas fluorescens NCIMB 11671 produces isonovalal (cis-2-methyl-5-isopropylhexa-2,5-dienal), which is a fragrance. However, this biotransformation has technical problems including the following: alpha-pinene oxide undergoes autoxidation in water and light; it is hydrophobic and relatively toxic to the biocatalyst; and it suffers from product inhibition. the influence of other terpene byproducts on the flux of alpha-pinene oxide was investigated and found to decrease the flux into the organic phase by up to 10\\%. (PMID: 16321051) [HMDB] Alpha-pinene oxide is cheap monoterpene, which is important compound for the fragnance industry. Biocatalytic method is used to convert monoterpenes into terpenoids. The biotransformation of alpha-pinene oxide using resting cells of Pseudomonas fluorescens NCIMB 11671 produces isonovalal (cis-2-methyl-5-isopropylhexa-2,5-dienal), which is a fragrance. However, this biotransformation has technical problems including the following: alpha-pinene oxide undergoes autoxidation in water and light; it is hydrophobic and relatively toxic to the biocatalyst; and it suffers from product inhibition. the influence of other terpene byproducts on the flux of alpha-pinene oxide was investigated and found to decrease the flux into the organic phase by up to 10\\%. (PMID: 16321051).
2-Methylimidazole
CONFIDENCE standard compound; INTERNAL_ID 8017
Fluorene
Fluorene, also known as diphenylenemethane or 9h-fluorene, is a member of the class of compounds known as fluorenes. Fluorenes are compounds containing a fluorene moiety, which consists of two benzene rings connected through either a cyclopentane, cyclopentene, or cyclopenta-1,3-diene. Fluorene is practically insoluble (in water) and an extremely weak acidic compound (based on its pKa). Fluorene can be found in corn, which makes fluorene a potential biomarker for the consumption of this food product. Fluorene is formally rated as an unfounded non-carcinogenic (IARC 3) potentially toxic compound. Fluorene , or 9H-fluorene, is a polycyclic aromatic hydrocarbon. It forms white crystals that exhibit a characteristic, aromatic odor similar to that of naphthalene. It is combustible. It has a violet fluorescence, hence its name. For commercial purposes it is obtained from coal tar. It is insoluble in water and soluble in many organic solvents . PAHs are carcinogens and have been associated with the increased risk of skin, respiratory tract, bladder, stomach, and kidney cancers. They may also cause reproductive effects and depress the immune system (L10) (T3DB). D009676 - Noxae > D002273 - Carcinogens
ANTHRACENE
Anthracene, also known as anthrazen or anthracene, sodium salt, ion (1-), is a member of the class of compounds known as anthracenes. Anthracenes are organic compounds containing a system of three linearly fused benzene rings. Anthracene can be found in sorrel, which makes anthracene a potential biomarker for the consumption of this food product. Anthracene is formally rated as an unfounded non-carcinogenic (IARC 3) potentially toxic compound. Anthracene is a solid polycyclic aromatic hydrocarbon (PAH) of formula C14H10, consisting of three fused benzene rings. It is a component of coal tar. Anthracene is used in the production of the red dye alizarin and other dyes. Anthracene is colorless but exhibits a blue (400-500 nm peak) fluorescence under ultraviolet radiation . PAHs are carcinogens and have been associated with the increased risk of skin, respiratory tract, bladder, stomach, and kidney cancers. They may also cause reproductive effects and depress the immune system (L10) (T3DB).
Naphthalene
Naphthalene, also known as naftaleno or albocarbon, belongs to the class of organic compounds known as naphthalenes. Naphthalenes are compounds containing a naphthalene moiety, which consists of two fused benzene rings. Naphthalene is possibly neutral. Naphthalene is a dry, pungent, and tar tasting compound. Naphthalene is found, on average, in the highest concentration within a few different foods, such as black walnuts, corns, and cloves. Naphthalene has also been detected, but not quantified, in several different foods, such as green bell peppers, orange bell peppers, rices, yellow bell peppers, and red bell peppers. This could make naphthalene a potential biomarker for the consumption of these foods. Naphthalene was once the primary ingredient in mothballs, though its use has largely been replaced in favor of alternatives such as 1,4-dichlorobenzene. Naphthalene is formally rated as a possible carcinogen (by IARC 2B) and is also a potentially toxic compound. Inhalation of naphthalene vapor has been associated with headaches, nausea, vomiting and dizziness. Naphthalene is the most abundant single component of coal tar so most of it is now industrially derived from coal tar. Aside from coal tar, trace amounts of naphthalene are produced by magnolias and some species of deer, as well as the Formosan subterranean termite, possibly produced by the termite as a repellant against "ants, poisonous fungi and nematode worms."[23] Some strains of the endophytic fungus Muscodor albus produce naphthalene among a range of volatile organic compounds, while Muscodor vitigenus produces naphthalene almost exclusively (PMID:12427963). Found in many essential oils
(2E)-Decenoyl-ACP
(2E)-Decenoyl-ACP, also known as Cycloleucine or 1-Aminocyclopentanecarboxylic acid, is classified as a member of the L-alpha-amino acids. L-alpha-amino acids are alpha amino acids which have the L-configuration of the alpha-carbon atom. (2E)-Decenoyl-ACP is considered to be soluble (in water) and acidic Acquisition and generation of the data is financially supported in part by CREST/JST. C308 - Immunotherapeutic Agent > C574 - Immunosuppressant KEIO_ID A050
Chymosin preparation, escherichia coli k-12
Chymosin preparation, escherichia coli k-12 is used as a food additive [EAFUS] ("EAFUS: Everything Added to Food in the United States. [http://www.eafus.com/]") D064449 - Sequestering Agents > D002614 - Chelating Agents > D007502 - Iron Chelating Agents
Formic acid
Formic acid is the simplest carboxylic acid. Formate is an intermediate in normal metabolism. It takes part in the metabolism of one-carbon compounds and its carbon may appear in methyl groups undergoing transmethylation. It is eventually oxidized to carbon dioxide. Formate is typically produced as a byproduct in the production of acetate. It is responsible for both metabolic acidosis and disrupting mitochondrial electron transport and energy production by inhibiting cytochrome oxidase activity, the terminal electron acceptor of the electron transport chain. Cell death from cytochrome oxidase inhibition by formate is believed to result partly from depletion of ATP, reducing energy concentrations so that essential cell functions cannot be maintained. Furthermore, inhibition of cytochrome oxidase by formate may also cause cell death by increased production of cytotoxic reactive oxygen species (ROS) secondary to the blockade of the electron transport chain. In nature, formic acid is found in the stings and bites of many insects of the order Hymenoptera, including bees and ants. The principal use of formic acid is as a preservative and antibacterial agent in livestock feed. When sprayed on fresh hay or other silage, it arrests certain decay processes and causes the feed to retain its nutritive value longer. Urinary formate is produced by Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumonia, Enterobacter, Acinetobacter, Proteus mirabilis, Citrobacter frundii, Enterococcus faecalis, Streptococcus group B, Staphylococcus saprophyticus (PMID: 22292465). It is used as a flavouring adjunct, an animal feed additive, a brewing antiseptic and as a food preservative
Hydrogen
Hydrogen is a colorless, odorless, nonmetallic, tasteless, highly flammable diatomic gas with the molecular formula H2. With an atomic weight of 1.00794, hydrogen is the lightest element. Besides the common H1 isotope, hydrogen exists as the stable isotope Deuterium and the unstable, radioactive isotope Tritium. Hydrogen is the most abundant of the chemical elements, constituting roughly 75\\% of the universes elemental mass. Hydrogen can form compounds with most elements and is present in water and most organic compounds. It plays a particularly important role in acid-base chemistry, in which many reactions involve the exchange of protons between soluble molecules. Oxidation of hydrogen, in the sense of removing its electron, formally gives H+, containing no electrons and a nucleus which is usually composed of one proton. That is why H+ is often called a proton. This species is central to discussion of acids. Under the Bronsted-Lowry theory, acids are proton donors, while bases are proton acceptors. A bare proton H+ cannot exist in solution because of its strong tendency to attach itself to atoms or molecules with electrons. However, the term proton is used loosely to refer to positively charged or cationic hydrogen, denoted H+. H2 is a product of some types of anaerobic metabolism and is produced by several microorganisms, usually via reactions catalyzed by iron- or nickel-containing enzymes called hydrogenases. These enzymes catalyze the reversible redox reaction between H2 and its component two protons and two electrons. Creation of hydrogen gas occurs in the transfer of reducing equivalents produced during pyruvate fermentation to water. Hydrogen has been found to be a metabolite of Citrobacter, Cyanobacteria, Enterobacter, Halobacterium and Rhodobacteraceae (PMID: 28042989; PMID: 16371161) (https://www.insa.nic.in/writereaddata/UpLoadedFiles/PINSA/Vol51B_1985_2_Art16.pdf) (https://www.researchgate.net/publication/222428793_High_Hydrogen_Yield_from_a_Two-step_Process_of_Dark-_and_Photo-fermentation_of_Sucrose) (Tao, Y; Chen, Y; Wu, Y; He, Y; Zhou, Z (2007). "High hydrogen yield from a two-step process of dark- and photo-fermentation of sucrose". International Journal of Hydrogen Energy. 32 (2): 200-206). It is used as a packaging gas [DFC]
Formamide
Formamide, also known as methanamide or ameisensaeureamid, belongs to the class of organic compounds known as carboximidic acids. These are organic acids with the general formula RC(=N)-OH (R=H, organic group). Formamide, in its pure state, has been used as an alternative solvent for the electrostatic self-assembly of polymer nanofilms. Formamide exists in all living organisms, ranging from bacteria to humans. Formamide has been detected, but not quantified in several different foods, such as hyssops, rose hips, asian pears, brassicas, and green bell peppers. It has been used as a softener for paper and fiber. Inhalation of large amounts of formamide vapor may require medical attention. In the past, formamide was produced by treating formic acid with ammonia, which produces ammonium formate, which in turn yields formamide upon heating:HCOOH + NH3 → HCOO−NH+4HCOO−NH+4 → HCONH2 + H2O. Formamide is also generated by aminolysis of ethyl formate: HCOOCH2CH3 + NH3 → HCONH2 + CH3CH2OH. The current industrial process for the manufacture of formamide involves either the carbonylation of ammonia: CO + NH3 → HCONH2. An alternative two-stage process involves the ammonolysis of methyl formate, which is formed from carbon monoxide and methanol: CO + CH3OH → HCOOCH3HCO2CH3 + NH3 → HCONH2 + CH3OH. Formamide is used in the industrial production of hydrogen cyanide. Formamide has been shown to exhibit hematoxicity in animals and is considered hazardous by prolonged exposure through inhalation, oral intake and dermal absorption. Formamide is a metabolite used for biological monitoring of workers exposed to N-N-dimethylformamide (DMF).(PMID 7622279).
Hydrogen cyanide
Hydrogen cyanide (with the historical common name of Prussic acid) is a chemical compound with chemical formula HCN. It is a colorless, extremely poisonous liquid that boils slightly above room temperature at 26 °C (79 °F). Hydrogen cyanide is a linear molecule, with a triple bond between carbon and nitrogen. A minor tautomer of HCN is HNC, hydrogen isocyanide. Hydrogen cyanide is weakly acidic with a pKa of 9.2. It partly ionizes in water solution to give the cyanide anion, CN. (Wikipedia) D009676 - Noxae > D011042 - Poisons > D002619 - Chemical Warfare Agents
Octane
Octane, also known as N-oktanis a hydrocarbon and an alkane with the chemical formula C8H18, and the condensed structural formula CH3(CH2)6CH3. Octane has many structural isomers that differ by the amount and location of branching in the carbon chain. One of these isomers, 2,2,4-trimethylpentane (commonly called iso-octane) is used as one of the standard values in the octane rating scale. Octane 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. Thus, octane is considered to be a hydrocarbon lipid molecule. Octane is a very hydrophobic molecule, practically insoluble in water, and relatively neutral. Octane is an alkane and gasoline tasting compound. Outside of the human body, octane has been detected, but not quantified in several different foods, such as pepper (Capsicum annuum), celery stalks, cauliflowers, alcoholic beverages, and corns. One of the isomers, 2,2,4-trimethylpentane or isooctane, is of major importance, as it has been selected as the 100 point on the octane rating scale, with n-heptane as the zero point. Octane is an alkane with the chemical formula C8H18. Octane is a potentially toxic compound. Treatment is mainly symptomatic and supportive. It has 18 isomers. Octane ratings are ratings used to represent the anti-knock performance of petroleum-based fuels (octane is less likely to prematurely combust under pressure than heptane), given as the percentage of 2,2,4-trimethylpentane in an 2,2,4-trimethylpentane / n-heptane mixture that would have the same performance. Found in hop oil
Benzene
Benzene is an organic chemical compound with the molecular formula C6H6. The benzene molecule is composed of six carbon atoms joined in a planar ring with one hydrogen atom attached to each. Because it contains only carbon and hydrogen atoms, benzene is classed as a hydrocarbon. Benzene, also known as benzol or [6]annulene, belongs to the class of organic compounds known as benzene and substituted derivatives. These are aromatic compounds containing one monocyclic ring system consisting of benzene. Benzene is a natural constituent of crude oil and is one of the elementary petrochemicals. Due to the cyclic continuous pi bonds between the carbon atoms, benzene is classed as an aromatic hydrocarbon. It is sometimes abbreviated PhH. Benzene is a colorless and highly flammable liquid with a sweet smell, and is partially responsible for the aroma around petrol (gasoline) stations. It is used primarily as a precursor to the manufacture of chemicals with more complex structure, such as ethylbenzene and cumene, of which billions of kilograms are produced annually. Although a major industrial chemical, benzene finds limited use in consumer items because of its toxicity. Benzene is formally rated as a carcinogen (by IARC 1) and is also a potentially toxic compound. Benzene has been found to be associated with several diseases such as autism and pervasive developmental disorder not otherwise specified. It is used in processing of modified hop extract
Methane
Methane (CH4), is a gas produced by a group of colonic anaerobes, absorbed from the colon and excreted in expired air. As a result, breath CH4 excretion can be used as an indicator of the in situ activity of the methanogenic flora. All CH4 produced in human beings is a metabolic product of intestinal bacteria, and about 50\\% of CH4 produced in the gut is absorbed and excreted in expired air. Because there appears to be no catabolism of this gas by other colonic organisms or host cells, breath CH4 measurements provide a rapid, simple means of semi quantitatively assessing the ongoing in situ metabolism of the methanogenic flora. It could seem likely that the intracolonic activity of a variety of bacteria similarly might be assessed quantitatively via analysis of expired air. However, the application of this methodology has been confounded by the rapid catabolism of many volatile bacterial products by other bacteria or human tissue. A striking aspect of the studies of breath CH4 measurements is the enormous individual variations in the excretion of this gas. Virtually all children under 5 years of age and 66\\% of the adult population do not exhale appreciable quantities of CH4. The remaining 34\\% of the adult population has appreciable breath methane concentrations of up to 80 ppm (mean, 15.2 ppm; median, 11.8 ppm). On this basis the population can be divided into CH4 producers or nonproducers, although a more accurate term would be to define subjects as being low or high CH4 producers. The primary methanogen present in the human colon, Methanobrevibacter smithii, produces methane via a reaction that relies entirely on H2 produced by other organisms to reduce CO2 to CH4. Thus, breath CH4 concentrations might be expected to mirror breath H2 concentrations; however, the high levels of CH4 observed in the fasting state may result from H2 derived from endogenous rather than dietary substrates. A diverse assortment of conditions has been associated with a high prevalence of methane producers including diverticulosis, cystic fibrosis, high fasting serum cholesterol levels, encopresis in children, and aorto-iliac vascular disease, whereas obesity (measured as skin-fold thickness) was related inversely to methane production. The challenge that remains is to determine to what extent methanogens actively influence body physiology vs. simply serve as passive indicators of colonic function. (PMID: 16469670, Clinical Gastroenterology and Hepatology Volume 4, Issue 2, February 2006, Pages 123-129). Methane can be found in Desulfovibrio, Methanobacterium, Methanobrevibacter, Methanococcus, Methanocorpusculum, Methanoculleus, Methanoflorens, Methanofollis, Methanogenium, Methanomicrobium, Methanopyrus, Methanoregula, Methanosaeta, Methanosarcina, Methanosphaera, Methanospirillium, Methanothermobacter (Wikipedia). Methane (CH4), is a gas produced by a group of colonic anaerobes, absorbed from the colon and excreted in expired air. As a result, breath CH4 excretion can be used as an indicator of the in situ activity of the methanogenic flora. All CH4 produced in human beings is a metabolic product of intestinal bacteria, and about 50\\% of CH4 produced in the gut is absorbed and excreted in expired air. Because there appears to be no catabolism of this gas by other colonic organisms or host cells, breath CH4 measurements provide a rapid, simple means of semi quantitatively assessing the ongoing in situ metabolism of the methanogenic flora. It could seem likely that the intracolonic activity of a variety of bacteria similarly might be assessed quantitatively via analysis of expired air. However, the application of this methodology has been confounded by the rapid catabolism of many volatile bacterial products by other bacteria or human tissue. A striking aspect of the studies of breath CH4 measurements is the enormous individual variations in the excretion of this gas. Virtually all children under 5 years of age and 66\\% of the adult population do not exhale appreciable quantities of CH4. The remaining 34\\% of the adult population has appreciable breath methane concentrations of up to 80 ppm (mean, 15.2 ppm; median, 11.8 ppm). On this basis the population can be divided into CH4 producers or nonproducers, although a more accurate term would be to define subjects as being low or high CH4 producers. The primary methanogen present in the human colon, Methanobrevibacter smithii, produces methane via a reaction that relies entirely on H2 produced by other organisms to reduce CO2 to CH4. Thus, breath CH4 concentrations might be expected to mirror breath H2 concentrations; however, the high levels of CH4 observed in the fasting state may result from H2 derived from endogenous rather than dietary substrates. A diverse assortment of conditions has been associated with a high prevalence of methane producers including diverticulosis, cystic fibrosis, high fasting serum cholesterol levels, encopresis in children, and aorto-iliac vascular disease, whereas obesity (measured as skin-fold thickness) was related inversely to methane production. The challenge that remains is to determine to what extent methanogens actively influence body physiology vs. simply serve as passive indicators of colonic function. (PMID: 16469670, Clinical Gastroenterology and Hepatology Volume 4, Issue 2, February 2006, Pages 123-129) [HMDB]
Toluene
Toluene, also known as methylbenzene or phenylmethane, belongs to the class of organic compounds known as toluenes. Toluenes are compounds containing a benzene ring which bears a methane group. Toluene is a drug which is used for the removal of ascarids (toxocara canis and toxascaris leonina) and hookworms (ancylostoma caninum and uncinaria stenocephala) and as an aid in removing tapeworms (taenia pisiformis, dipylidium caninum, and echinococcus granulosus) from dogs and cats. Toluene is possibly neutral. Toluene exists in all living species, ranging from bacteria to humans. Toluene is a sweet and paint tasting compound. Toluene is found, on average, in the highest concentration within a few different foods, such as black walnuts, rosemaries, and corianders and in a lower concentration in milk (cow) and kohlrabis. Toluene has also been detected, but not quantified, in several different foods, such as prickly pears, citrus, yellow bell peppers, apples, and garden tomato (var.). This could make toluene a potential biomarker for the consumption of these foods. Toluene is a potentially toxic compound. Toluene, with regard to humans, has been found to be associated with several diseases such as pervasive developmental disorder not otherwise specified, perillyl alcohol administration for cancer treatment, autism, and asthma; toluene has also been linked to the inborn metabolic disorder celiac disease. Isolated from distilled tolu balsam (Myroxylon balsamum). Minor constituent of lime oil (Citrus aurantifolia) D012997 - Solvents
Acetylene
Polyacetylene is also known as ethyne or ethin. Polyacetylene can be found in german camomile and roman camomile, which makes polyacetylene a potential biomarker for the consumption of these food products. Polyacetylene (IUPAC name: polyethyne) usually refers to an organic polymer with the repeating unit (C2H2)n. The name refers to its conceptual construction from polymerization of acetylene to give a chain with repeating olefin groups. This compound is conceptually important as the discovery of polyacetylene and its high conductivity upon doping helped to launch the field of organic conductive polymers. The high electrical conductivity discovered by Hideki Shirakawa, Alan Heeger, and Alan MacDiarmid for this polymer led to intense interest in the use of organic compounds in microelectronics (organic semiconductors). This discovery was recognized by the Nobel Prize in Chemistry in 2000. Early work in the field of polyacetylene research was aimed at using doped polymers as easily processable and lightweight "plastic metals". Despite the promise of this polymer in the field of conductive polymers, many of its properties such as instability to air and difficulty with processing have led to avoidance in commercial applications .
TOLRESTAT
A - Alimentary tract and metabolism > A10 - Drugs used in diabetes > A10X - Other drugs used in diabetes > A10XA - Aldose reductase inhibitors C471 - Enzyme Inhibitor > C72880 - Aldose Reductase Inhibitor D004791 - Enzyme Inhibitors
Naphthazarin
A naphthoquinone that is 1,4-naphthoquinone in which the hydrogens at positions 5 and 8 are replaced by hydroxy groups. D000970 - Antineoplastic Agents
Diethyl sulfide
Diethyl sulfide is found in alcoholic beverages. Diethyl sulfide is a food additive listed in the EAFUS food Additive Database (Jan 2001). Diethyl sulfide is found in various foods and brandies. Diethyl sulfide is a food flavour ingredient. Diethyl sulfide is a clear, flammable chemical compound with a pungent garlic-like odor. It has the chemical formula C4H10S. It is prepared by treating ethanol with concentrated sulfuric acid, partially neutralizing the new solution with sodium carbonate, then distilling the resulting sodium ethyl sulfate in a solution containing potassium sulfide Food additive listed in the EAFUS Food Additive Database (Jan 2001). Found in various foods and brandies. Food flavour ingredient
Tiglyl-CoA
Tiglyl-CoA is a metabolite in the degradation of isoleucine to propionic acid pathway. A defect in the conversion of tiglyl-CoA to alpha-methyl-beta-hydroxybutyryl-CoA, results in episodic abdominal pain and acidosis in patients with Tiglic acidemia (OMIM 275190). Tiglyl-CoA is a metabolite in the degradation of isoleucine to propionic acid pathway.
O-Methylsterigmatocystin
O-Methylsterigmatocystin is a mycotoxin of Aspergillus flavu D009676 - Noxae > D011042 - Poisons > D009183 - Mycotoxins
Androst-5-ene-3beta,17beta-diol
5-Androstenediol is a direct metabolite of the most abundant steroid produced by the human adrenal cortex, dehydroepiandrosterone (DHEA). 5-Androstenediol is less androgenic than 4-androstenediol, and stimulates the immune system. When administered to rats in vivo, 5-androstenediol has approximately 1/70 the androgenicity of DHEA, 1/185 the androgenicity of androstenedione, and 1/475 the androgenicity of testosterone (Wikipedia). Because it induces production of white blood cells and platelets, 5-androstenediol is being developed as a radiation countermeasure as Neumune (HE2100). An intermediate in testosterone biosynthesis, found in the testis or the adrenal glands. 5-Androstenediol, derived from dehydroepiandrosterone by the reduction of the 17-keto group (17-hydroxysteroid dehydrogenases), is converted to testosterone by the oxidation of the 3-beta hydroxyl group to a 3-keto group (3-fydroxysteroid dehydrogenase). Androstenediol is a term used to refer to two different steroids with molecular weights of 290.44: 4-androstenediol (4-androstene-3beta,17beta-diol) and 5-androstenediol (5-androstene-3beta,17beta-diol). 4-Androstenediol is closer to testosterone structurally, and has androgenic effects. 5-Androstenediol is a direct metabolite of the most abundant steroid produced by the human adrenal cortex, dehydroepiandrosterone (DHEA). 5-Androstenediol is less androgenic than 4-androstenediol, and stimulates the immune system. When administered to rats in vivo, 5-androstenediol has approximately 1/70 the androgenicity of DHEA, 1/185 the androgenicity of androstenedione, and 1/475 the androgenicity of testosterone (Coffey, 1988). Because it induces production of white blood cells and platelets, 5-androstenediol is being developed as a radiation countermeasure as Neumune(HE2100). D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006728 - Hormones > D045930 - Anabolic Agents C147908 - Hormone Therapy Agent > C548 - Therapeutic Hormone > C2360 - Anabolic Steroid
Pentaporphyrin I
Pentaporphyrin I is a porphyrin intermediate detected in liver, kidney and erythrocytes (PubMed ID 8803328 ).
Vitamin K1 2,3-epoxide
Vitamin K1 2,3-epoxide (CAS: 25486-55-9) is a vitamin K derivative. Vitamin K is needed for the posttranslational modification of certain proteins, mostly required for blood coagulation. Within the cell, vitamin K undergoes electron reduction to a reduced form of vitamin K (called vitamin K hydroquinone) by the enzyme vitamin K epoxide reductase (or VKOR). Another enzyme then oxidizes vitamin K hydroquinone to allow carboxylation of glutamate into gamma-carboxyglutamate (Gla). This enzyme is called the gamma-glutamyl carboxylase or the vitamin K-dependent carboxylase. The carboxylation reaction will only proceed if the carboxylase enzyme is able to oxidize vitamin K hydroquinone into vitamin K epoxide at the same time; the carboxylation and epoxidation reactions are said to be coupled reactions. Vitamin K epoxide is then re-converted into vitamin K by the vitamin K epoxide reductase. These two enzymes comprise the so-called vitamin K cycle. One of the reasons why vitamin K is rarely deficient in a human diet is because vitamin K is continually recycled in our cells. Vitamin K 2,3-epoxide is the substrate for vitamin K 2,3-epoxide reductase (VKOR) complex. Significantly increased level of serum vitamin K epoxide has been found in patients with familial multiple coagulation factor deficiency (PMID: 12384421). Accumulation of vitamin K1-2,3-epoxide in plasma is also a sensitive marker of the coumarin-like activity of drugs (PMID: 2401753). Vitamin K1 2,3-epoxide is a vitamin K derivative. Vitamin K needed for the posttranslational modification of certain proteins, mostly required for blood coagulation. Within the cell, Vitamin K undergoes electron reduction to a reduced form of Vitamin K (called Vitamin K hydroquinone) by the enzyme Vitamin K epoxide reductase (or VKOR). Another enzyme then oxidizes Vitamin K hydroquinone to allow carboxylation of Glutamate to Gamma-cabroxygluatmate (Gla); this enzyme is called the gamma-glutamyl carboxylase or the Vitamin K-dependent carboxylase. The carboxylation reaction will only proceed if the carboxylase enzyme is able to oxidize Vitamin K hydroquinone to vitamin K epoxide at the same time; the carboxylation and epoxidation reactions are said to be coupled reactions. Vitamin K epoxide is then re-converted to Vitamin K by the Vitamin K epoxide reductase. These two enzymes comprise the so-called Vitamin K cycle. One of the reasons why Vitamin K is rarely deficient in a human diet is because Vitamin K is continually recycled in our cells. Vitamin K 2,3-epoxide is the substrate for vitamin K 2,3-epoxide reductase (VKOR) complex. Significantly increased level of serum vitamin K epoxide has been found in patients with familial multiple coagulation factor deficiency. (PMID 12384421) Accumulation of vitamin K1-2,3-epoxide in plasma is also a sensitive marker of coumarin-like activity of drugs. (PMID 2401753) [HMDB]
Ethylbenzene
Ethyl benzene, also known as ethylbenzol or alpha-methyltoluene, belongs to benzene and substituted derivatives class of compounds. Those are aromatic compounds containing one monocyclic ring system consisting of benzene. Ethyl benzene can be found in black walnut and safflower, which makes ethyl benzene a potential biomarker for the consumption of these food products. Ethyl benzene can be found primarily in blood and feces. Ethyl benzene exists in all eukaryotes, ranging from yeast to humans. Ethyl benzene is formally rated as possibly a carcinogenic (IARC 2B) potentially toxic compound. Ethyl benzene is an organic compound with the formula C6H5CH2CH3. It is a highly flammable, colorless liquid with an odor similar to that of gasoline. This monocyclic aromatic hydrocarbon is important in the petrochemical industry as an intermediate in the production of styrene, the precursor to polystyrene, a common plastic material. In 2012, more than 99\\% of ethylbenzene produced was consumed in the production of styrene. Ethyl benzene is also used to make other chemicals, in fuel, and as a solvent in inks, rubber adhesives, varnishes, and paints. Ethyl benzene exposure can be determined by testing for the breakdown products in urine . Following oral exposure, a gastric lavage is recommended. Protect airway by placement in Trendelenburg and left lateral decubitus position or by endotracheal intubation. Control any seizures first. Following inhalation, move patient to fresh air. Monitor for respiratory distress. If cough or difficulty breathing develops, evaluate for respiratory tract irritation, bronchitis, or pneumonitis. Administer oxygen and assist ventilation as required. Following eye exposure, irrigate exposed eyes with copious amounts of room temperature water for at least 15 minutes. In case of dermal exposure, remove contaminated clothing and wash exposed area thoroughly with soap and water. Treat dermal irritation or burns with standard topical therapy. Patients developing dermal hypersensitivity reactions may require treatment with systemic or topical corticosteroids or antihistamines. Some chemicals can produce systemic poisoning by absorption through intact skin. Carefully observe patients with dermal exposure for the development of any systemic signs or symptoms and administer symptomatic treatment as necessary (T36) (T3DB). Ethylbenzene belongs to the family of Substituted Benzenes. These are aromatic compounds containing a benzene substituted at one or more positions.
Phenformin
A biguanide hypoglycemic agent with actions and uses similar to those of metformin. Although it is generally considered to be associated with an unacceptably high incidence of lactic acidosis, often fatal, it is still available in some countries. (From Martindale, The Extra Pharmacopoeia, 30th ed, p290) A - Alimentary tract and metabolism > A10 - Drugs used in diabetes > A10B - Blood glucose lowering drugs, excl. insulins > A10BA - Biguanides C78276 - Agent Affecting Digestive System or Metabolism > C29711 - Anti-diabetic Agent > C98234 - Biguanide Antidiabetic Agent D007004 - Hypoglycemic Agents > D001645 - Biguanides
Propiverine
Propiverine is an anticholinergic drug used for the treatment of urinary urgency, frequency and urge incontinence, all symptoms of overactive bladder syndrome. A modified release preparation is also available, taken once daily. G - Genito urinary system and sex hormones > G04 - Urologicals > G04B - Urologicals > G04BD - Drugs for urinary frequency and incontinence C78272 - Agent Affecting Nervous System > C66880 - Anticholinergic Agent > C29704 - Antimuscarinic Agent D018373 - Peripheral Nervous System Agents > D001337 - Autonomic Agents > D010276 - Parasympatholytics D018377 - Neurotransmitter Agents > D018678 - Cholinergic Agents > D018680 - Cholinergic Antagonists C78272 - Agent Affecting Nervous System > C29698 - Antispasmodic Agent D000089162 - Genitourinary Agents > D064804 - Urological Agents
Neolinustatin
Isolated from flaxseed meal. Neolinustatin is found in many foods, some of which are yardlong bean, european cranberry, hyssop, and macadamia nut. Neolinustatin is found in cereals and cereal products. Neolinustatin is isolated from flaxseed meal.
5-Methyl-2-furancarboxaldehyde
5-Methyl-2-furancarboxaldehyde, also known as 5-methyl-2-furfural or 2-formyl-5-methylfuran, belongs to the class of organic compounds known as aryl-aldehydes. Aryl-aldehydes are compounds containing an aldehyde group directly attached to an aromatic ring. 5-Methyl-2-furancarboxaldehyde is an almond, burnt sugar, and caramel tasting compound. 5-methyl-2-furancarboxaldehyde has been detected, but not quantified, in several different foods, such as green bell peppers, red bell peppers, pepper (c. frutescens), orange bell peppers, and pepper (c. annuum). This could make 5-methyl-2-furancarboxaldehyde a potential biomarker for the consumption of these foods. Isolated from brown algae and other plant sources, doubtless as a secondary production from saccharides. Flavouring ingredient. 5-Methyl-2-furancarboxaldehyde is found in many foods, some of which are pepper (c. frutescens), yellow bell pepper, red bell pepper, and pepper (c. annuum).
Nafenopin
C78276 - Agent Affecting Digestive System or Metabolism > C29711 - Anti-diabetic Agent > C154291 - Peroxisome Proliferator-Activated Receptor Agonist C78276 - Agent Affecting Digestive System or Metabolism > C29703 - Antilipidemic Agent > C98150 - Fibrate Antilipidemic Agent D009676 - Noxae > D002273 - Carcinogens > D020025 - Peroxisome Proliferators D057847 - Lipid Regulating Agents > D000960 - Hypolipidemic Agents D009676 - Noxae > D000963 - Antimetabolites Same as: D05102
Propylene
Propene, also known as 1-propylene or methylethene, is a member of the class of compounds known as unsaturated aliphatic hydrocarbons. Unsaturated aliphatic hydrocarbons are aliphatic Hydrocarbons that contains one or more unsaturated carbon atoms. These compounds contain one or more double or triple bonds. Propene can be found in soft-necked garlic, which makes propene a potential biomarker for the consumption of this food product.
Potassium nitrate (KNO3)
Preservative for cod roe, cured red meat and poultry products. Potassium nitrate (KNO3) is found in fishes, animal foods, and common sage. D053834 - Explosive Agents Same as: D02051
Cyclopropanamine
A primary aliphatic amine that consists of cyclopropane bearing a single amino substituent.
2,4-Pentanedione
2,4-Pentanedione is found in papaya. 2,4-Pentanedione is isolated from ethereal oil of Pinus sylvestris (Scotch pine Isolated from ethereal oil of Pinus sylvestris (Scotch pine). 2,4-Pentanedione is found in papaya.
Beryllium
Beryllium is a light-weight metallic element, which was first recognized as a lung hazard in Europe in the 1930s, shortly after its first production in modern industry. People exposed to beryllium compounds are at increased risk of developing beryllium sensitization and chronic beryllium disease (CBD). The chronic lung disease was first described among workers exposed to beryllium-containing materials used in the manufacture of fluorescent lamps. In primary production of beryllium metal, which was used in nuclear weapons components, physicians recognized severe dermatitis, reversible pneumonitis, and chronic granulomatous lung disease. Physiologically, this metal/element exists as an ion in the body. It is now recognized that the physicochemical properties of beryllium compounds may account for the differing clinical presentations in different industries. In primary production of beryllium metal, soluble salts are present and cause rashes in approximately one fourth of exposed workers and reversible acute pneumonitis in a smaller portion of the workforce. After heavy inhalation exposures, radiographic abnormalities evolve at approximately three weeks; resolution of symptoms and radiologic abnormalities away from exposure occur only after months, but symptoms recur immediately upon reexposure. The granulomatous nature of chronic beryllium disease is now known to be caused by cell-mediated sensitization to beryllium. Chronic beryllium disease (CBD) is a granulomatous lung disorder characterized by the accumulation of beryllium-specific CD4(+) T cells. Depending on genetic susceptibility and the nature of the exposure, CBD occurs in up to 20\\% of exposed workers. Genetic susceptibility has been associated with particular HLA-DP alleles, especially those possessing a negatively charged glutamic acid residue at the 69th position of the beta-chain. The mechanism for this association lies in the ability of these HLA-DP molecules to bind and present beryllium to pathogenic CD4(+) T cells. Large numbers of effector memory, beryllium-specific CD4(+) T cells are recruited to the lung of these subjects and secrete Th1-type cytokines upon beryllium recognition. The presence of circulating beryllium-specific CD4(+) T cells directly correlates with the severity of lymphocytic alveolitis. Since 1987, this biomarker of sensitization has enabled medical surveillance of beryllium-exposed workforces. Beryllium lymphocyte proliferation tests have been used to screen workers to detect sensitization, to characterize epidemiologically workplace risks for beryllium sensitization, and to evaluate the effectiveness of interventions intended to prevent sensitization. The most compelling real-world example of genetic testing for susceptibility to a workplace exposure involves those industries that process or fabricate beryllium. Under reasonable assumptions, the longitudinal positive predictive value of the HLA-DPB1-Glu69 marker of susceptibility to beryllium disease is 12\\%. Interpretive challenges further limit the utility of the test and may inadvertently suggest a false sense of safety among workers. Reduction in inhalation exposure to beryllium has not resulted in a concomitant reduction in the occurrence of beryllium sensitization or CBD, suggesting that continued prevalence may be due, in part, to unchecked skin exposure to beryllium-containing particles. (PMID: 17094767, 16697706, 16231190) [HMDB]. Beryllium is found in spinach. Beryllium is a light-weight metallic element, which was first recognized as a lung hazard in Europe in the 1930s, shortly after its first production in modern industry. People exposed to beryllium compounds are at increased risk of developing beryllium sensitization and chronic beryllium disease (CBD). The chronic lung disease was first described among workers exposed to beryllium-containing materials used in the manufacture of fluorescent lamps. In primary production of beryllium metal, which was used in nuclear weapons components, physicians recognized severe dermatitis, reversible pneumonitis, and chronic granulomatous lung disease. Physiologically, this metal/element exists as an ion in the body. It is now recognized that the physicochemical properties of beryllium compounds may account for the differing clinical presentations in different industries. In primary production of beryllium metal, soluble salts are present and cause rashes in approximately one fourth of exposed workers and reversible acute pneumonitis in a smaller portion of the workforce. After heavy inhalation exposures, radiographic abnormalities evolve at approximately three weeks; resolution of symptoms and radiologic abnormalities away from exposure occur only after months, but symptoms recur immediately upon reexposure. The granulomatous nature of chronic beryllium disease is now known to be caused by cell-mediated sensitization to beryllium. Chronic beryllium disease (CBD) is a granulomatous lung disorder characterized by the accumulation of beryllium-specific CD4(+) T cells. Depending on genetic susceptibility and the nature of the exposure, CBD occurs in up to 20\\% of exposed workers. Genetic susceptibility has been associated with particular HLA-DP alleles, especially those possessing a negatively charged glutamic acid residue at the 69th position of the beta-chain. The mechanism for this association lies in the ability of these HLA-DP molecules to bind and present beryllium to pathogenic CD4(+) T cells. Large numbers of effector memory, beryllium-specific CD4(+) T cells are recruited to the lung of these subjects and secrete Th1-type cytokines upon beryllium recognition. The presence of circulating beryllium-specific CD4(+) T cells directly correlates with the severity of lymphocytic alveolitis. Since 1987, this biomarker of sensitization has enabled medical surveillance of beryllium-exposed workforces. Beryllium lymphocyte proliferation tests have been used to screen workers to detect sensitization, to characterize epidemiologically workplace risks for beryllium sensitization, and to evaluate the effectiveness of interventions intended to prevent sensitization. The most compelling real-world example of genetic testing for susceptibility to a workplace exposure involves those industries that process or fabricate beryllium. Under reasonable assumptions, the longitudinal positive predictive value of the HLA-DPB1-Glu69 marker of susceptibility to beryllium disease is 12\\%. Interpretive challenges further limit the utility of the test and may inadvertently suggest a false sense of safety among workers. Reduction in inhalation exposure to beryllium has not resulted in a concomitant reduction in the occurrence of beryllium sensitization or CBD, suggesting that continued prevalence may be due, in part, to unchecked skin exposure to beryllium-containing particles. (PMID: 17094767, 16697706, 16231190).
Threonine #
2-amino-3-hydroxybutanoic acid is an alpha-amino acid that is butanoic acid substituted by an amino group at position 2 and a hydroxy group at position 3. It has a role as a plant metabolite. An alpha-amino acid that is butanoic acid substituted by an amino group at position 2 and a hydroxy group at position 3. D-Allothreonine is the D type stereoisomer of Allothreonine. D-Allothreonine is a peptido-lipid derived from bacteria. D-Allothreonine, amide-linked to the D-galacturonic acid, is also a constituent in the polysaccharide[1][2]. DL-Threonine, an essential amino acid, has the potential to treat hypostatic leg ulceration[1]. L-Allothreonine (H-allo-Thr-OH) is an endogenous metabolite. 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].
Androst-5-ene-3beta,17beta-diol
D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006728 - Hormones > D045930 - Anabolic Agents
2,3-Epoxyphylloquinone
Vitamin K1 2,3-epoxide is a vitamin K derivative. Vitamin K needed for the posttranslational modification of certain proteins, mostly required for blood coagulation. Within the cell, Vitamin K undergoes electron reduction to a reduced form of Vitamin K (called Vitamin K hydroquinone) by the enzyme Vitamin K epoxide reductase (or VKOR). Another enzyme then oxidizes Vitamin K hydroquinone to allow carboxylation of Glutamate to Gamma-cabroxygluatmate (Gla); this enzyme is called the gamma-glutamyl carboxylase or the Vitamin K-dependent carboxylase. The carboxylation reaction will only proceed if the carboxylase enzyme is able to oxidize Vitamin K hydroquinone to vitamin K epoxide at the same time; the carboxylation and epoxidation reactions are said to be coupled reactions. Vitamin K epoxide is then re-converted to Vitamin K by the Vitamin K epoxide reductase. These two enzymes comprise the so-called Vitamin K cycle. One of the reasons why Vitamin K is rarely deficient in a human diet is because Vitamin K is continually recycled in our cells. Vitamin K 2,3-epoxide is the substrate for vitamin K 2,3-epoxide reductase (VKOR) complex. Significantly increased level of serum vitamin K epoxide has been found in patients with familial multiple coagulation factor deficiency. (PMID 12384421) Accumulation of vitamin K1-2,3-epoxide in plasma is also a sensitive marker of coumarin-like activity of drugs. (PMID 2401753) [HMDB]
5,8-Dihydroxy-1,4-naphthoquinone
D000970 - Antineoplastic Agents
TRIPHENYLPHOSPHINE OXIDE
CONFIDENCE standard compound; INTERNAL_ID 825; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 8827; ORIGINAL_PRECURSOR_SCAN_NO 8826 CONFIDENCE standard compound; INTERNAL_ID 825; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 8840; ORIGINAL_PRECURSOR_SCAN_NO 8839 CONFIDENCE standard compound; INTERNAL_ID 825; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 8870; ORIGINAL_PRECURSOR_SCAN_NO 8869 CONFIDENCE standard compound; INTERNAL_ID 825; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 8871; ORIGINAL_PRECURSOR_SCAN_NO 8868 CONFIDENCE standard compound; INTERNAL_ID 825; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 8916; ORIGINAL_PRECURSOR_SCAN_NO 8915 CONFIDENCE standard compound; INTERNAL_ID 825; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 8887; ORIGINAL_PRECURSOR_SCAN_NO 8885 CONFIDENCE standard compound; INTERNAL_ID 2472 CONFIDENCE standard compound; INTERNAL_ID 8813 CONFIDENCE standard compound; INTERNAL_ID 8250 CONFIDENCE standard compound; EAWAG_UCHEM_ID 3587 EAWAG_UCHEM_ID 3587; CONFIDENCE standard compound
5-Methyl-2-furancarboxaldehyde
5-Methyl-2-furancarboxaldehyde, also known as 5-methyl-2-furfural or 2-formyl-5-methylfuran, belongs to the class of organic compounds known as aryl-aldehydes. Aryl-aldehydes are compounds containing an aldehyde group directly attached to an aromatic ring. 5-Methyl-2-furancarboxaldehyde is an almond, burnt sugar, and caramel tasting compound. 5-methyl-2-furancarboxaldehyde has been detected, but not quantified, in several different foods, such as green bell peppers, red bell peppers, pepper (c. frutescens), orange bell peppers, and pepper (c. annuum). This could make 5-methyl-2-furancarboxaldehyde a potential biomarker for the consumption of these foods. 5-methyl-2-furaldehyde is a member of furans and an aldehyde. It has a role as a Maillard reaction product, a human metabolite, an EC 2.2.1.6 (acetolactate synthase) inhibitor and a flavouring agent. 5-Methylfurfural is a natural product found in Campsis grandiflora, Castanopsis cuspidata, and other organisms with data available. 5-methyl-2-furancarboxaldehyde is a metabolite found in or produced by Saccharomyces cerevisiae. Isolated from brown algae and other plant sources, doubtless as a secondary production from saccharides. Flavouring ingredient. 5-Methyl-2-furancarboxaldehyde is found in many foods, some of which are pepper (c. frutescens), yellow bell pepper, red bell pepper, and pepper (c. annuum).
sulfathiazole
D - Dermatologicals > D06 - Antibiotics and chemotherapeutics for dermatological use > D06B - Chemotherapeutics for topical use > D06BA - Sulfonamides J - Antiinfectives for systemic use > J01 - Antibacterials for systemic use > J01E - Sulfonamides and trimethoprim > J01EB - Short-acting sulfonamides C254 - Anti-Infective Agent > C29739 - Sulfonamide Anti-Infective Agent D000890 - Anti-Infective Agents > D013432 - Sulfathiazoles D000890 - Anti-Infective Agents > D013424 - Sulfanilamides
Cycloleucine
C308 - Immunotherapeutic Agent > C574 - Immunosuppressant
DODECANEDIOIC ACID
An alpha,omega-dicarboxylic acid that is dodecane in which the methyl groups have been oxidised to the corresponding carboxylic acids. Dodecanedioic acid (C12) is a dicarboxylic acid with a metabolic pathway intermediate to those of lipids and carbohydrates.
Suberic acid
An alpha,omega-dicarboxylic acid that is the 1,6-dicarboxy derivative of hexane. Suberic acid (Octanedioic acid) is found to be associated with carnitine-acylcarnitine translocase deficiency, malonyl-Coa decarboxylase deficiency. Suberic acid (Octanedioic acid) is found to be associated with carnitine-acylcarnitine translocase deficiency, malonyl-Coa decarboxylase deficiency.
triphenylphosphineoxide
CONFIDENCE Reference Standard (Level 1); INTERNAL_ID 1081
Enterobactin
A macrotriolide produced by certain members of Enterobacteriaceae, e.g. Escherichia coli and Salmonella. D064449 - Sequestering Agents > D002614 - Chelating Agents > D007502 - Iron Chelating Agents
Pretilachlor
Precursor ion is [M+H]+ of 37Cl-containing molecule.; The sample was injected by direct infusion.; This record was created by the financial support of MEXT/JSPS KAKENHI Grant Number 19HP8024 to the Mass Spectrometry Society of Japan. The sample was injected by direct infusion.; This record was created by the financial support of MEXT/JSPS KAKENHI Grant Number 19HP8024 to the Mass Spectrometry Society of Japan.
PHENFORMIN
A - Alimentary tract and metabolism > A10 - Drugs used in diabetes > A10B - Blood glucose lowering drugs, excl. insulins > A10BA - Biguanides C78276 - Agent Affecting Digestive System or Metabolism > C29711 - Anti-diabetic Agent > C98234 - Biguanide Antidiabetic Agent D007004 - Hypoglycemic Agents > D001645 - Biguanides CONFIDENCE standard compound; INTERNAL_ID 210; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 5226; ORIGINAL_PRECURSOR_SCAN_NO 5225 ORIGINAL_ACQUISITION_NO 5226; CONFIDENCE standard compound; INTERNAL_ID 210; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_PRECURSOR_SCAN_NO 5225 CONFIDENCE standard compound; INTERNAL_ID 210; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 5228; ORIGINAL_PRECURSOR_SCAN_NO 5227 CONFIDENCE standard compound; INTERNAL_ID 210; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 5267; ORIGINAL_PRECURSOR_SCAN_NO 5265 CONFIDENCE standard compound; INTERNAL_ID 210; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 5263; ORIGINAL_PRECURSOR_SCAN_NO 5262 CONFIDENCE standard compound; INTERNAL_ID 210; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 5259; ORIGINAL_PRECURSOR_SCAN_NO 5258 CONFIDENCE standard compound; INTERNAL_ID 210; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 5264; ORIGINAL_PRECURSOR_SCAN_NO 5262
safrole
A member of the class of benzodioxoles that is 1,3-benzodioxole which is substituted by an allyl group at position 5. It is found in several plants, including black pepper, cinnamon and nutmeg, and is present in several essential oils, notably that of sassafras. It has insecticidal properties and has been used as a topical antiseptic. Although not thought to pose a significant carcinogenic risk to humans, findings of weak carcinogenicity in rats have resulted in the banning of its (previously widespread) use in perfumes and soaps, and as a food additive.
Betulafolientriol
CoA 5:1
naphthalene
An aromatic hydrocarbon comprising two fused benzene rings. It occurs in the essential oils of numerous plant species e.g. magnolia.
Nafenopin
C78276 - Agent Affecting Digestive System or Metabolism > C29711 - Anti-diabetic Agent > C154291 - Peroxisome Proliferator-Activated Receptor Agonist C78276 - Agent Affecting Digestive System or Metabolism > C29703 - Antilipidemic Agent > C98150 - Fibrate Antilipidemic Agent D009676 - Noxae > D002273 - Carcinogens > D020025 - Peroxisome Proliferators D057847 - Lipid Regulating Agents > D000960 - Hypolipidemic Agents D009676 - Noxae > D000963 - Antimetabolites Same as: D05102
Hydrogen cyanide
A one-carbon compound consisting of a methine group triple bonded to a nitrogen atom D009676 - Noxae > D011042 - Poisons > D002619 - Chemical Warfare Agents Hydrogen cyanide, also known as hydrocyanic acid or cyanide, is a member of the class of compounds known as nitriles. Nitriles are compounds having the structure RC#N; thus C-substituted derivatives of hydrocyanic acid, HC#N. Hydrogen cyanide is slightly soluble (in water) and a very weakly acidic compound (based on its pKa). Hydrogen cyanide can be found in a number of food items such as kiwi, java plum, yellow wax bean, and mamey sapote, which makes hydrogen cyanide a potential biomarker for the consumption of these food products. Hydrogen cyanide exists in all living organisms, ranging from bacteria to humans. Hydrogen cyanide is a non-carcinogenic (not listed by IARC) potentially toxic compound. Hydrogen cyanide (HCN), sometimes called prussic acid, is a chemical compound with the chemical formula HCN. It is a colorless, extremely poisonous and inflammable liquid that boils slightly above room temperature, at 25.6 °C (78.1 °F). HCN is produced on an industrial scale and is a highly valuable precursor to many chemical compounds ranging from polymers to pharmaceuticals . Antidotes to cyanide poisoning include hydroxocobalamin and sodium nitrite, which release the cyanide from the cytochrome system, and rhodanase, which is an enzyme occurring naturally in mammals that combines serum cyanide with thiosulfate, producing comparatively harmless thiocyanate. Oxygen therapy can also be administered (L97) (T3DB).
GP-17
Gypenoside XVII is a ginsenoside found in Panax species that is dammarane which is substituted by hydroxy groups at the 3beta, 12beta and 20 pro-S positions, in which the hydroxy groups at positions 3 and 20 have been converted to the corresponding beta-D-glucopyranoside and beta-D-glucopyranosyl-(1->6)-beta-D-glucopyranoside respectively, and in which a double bond has been introduced at the 24-25 position. It has a role as a plant metabolite. It is a 12beta-hydroxy steroid, a beta-D-glucoside, a disaccharide derivative, a ginsenoside and a tetracyclic triterpenoid. It derives from a hydride of a dammarane. Gypenoside XVII is a natural product found in Panax vietnamensis, Gynostemma pentaphyllum, and other organisms with data available. A ginsenoside found in Panax species that is dammarane which is substituted by hydroxy groups at the 3beta, 12beta and 20 pro-S positions, in which the hydroxy groups at positions 3 and 20 have been converted to the corresponding beta-D-glucopyranoside and beta-D-glucopyranosyl-(1->6)-beta-D-glucopyranoside respectively, and in which a double bond has been introduced at the 24-25 position. Gypenoside XVII, a novel phytoestrogen belonging to the gypenosides, can activate estrogen receptors. Gypenoside XVII, a novel phytoestrogen belonging to the gypenosides, can activate estrogen receptors.
Ginsenoside
(20S)-ginsenoside Rg3 is a ginsenoside found in Panax ginseng and Panax japonicus var. major that is dammarane which is substituted by hydroxy groups at the 3beta, 12beta and 20 pro-S positions, in which the hydroxy group at position 3 has been converted to the corresponding beta-D-glucopyranosyl-beta-D-glucopyranoside, and in which a double bond has been introduced at the 24-25 position. It has a role as an apoptosis inducer, an antineoplastic agent, a plant metabolite and an angiogenesis modulating agent. It is a ginsenoside, a tetracyclic triterpenoid and a glycoside. It is functionally related to a (20S)-protopanaxadiol. It derives from a hydride of a dammarane. Ginsenoside Rg3 is a natural product found in Panax ginseng, Panax notoginseng, and other organisms with data available. A ginsenoside found in Panax ginseng and Panax japonicus var. major that is dammarane which is substituted by hydroxy groups at the 3beta, 12beta and 20 pro-S positions, in which the hydroxy group at position 3 has been converted to the corresponding beta-D-glucopyranosyl-beta-D-glucopyranoside, and in which a double bond has been introduced at the 24-25 position. D000970 - Antineoplastic Agents Ginsenoside F2 is a ginsenoside found in Panax species that is dammarane which is substituted by hydroxy groups at the 3beta, 12beta and 20 pro-S positions, in which the hydroxy groups at positions 3 and 20 have been converted to the corresponding beta-D-glucopyranosides, and in which a double bond has been introduced at the 24-25 position. It has a role as an apoptosis inducer, an antineoplastic agent and a plant metabolite. It is a ginsenoside, a tetracyclic triterpenoid, a 12beta-hydroxy steroid and a beta-D-glucoside. It derives from a hydride of a dammarane. ginsenoside F2 is a natural product found in Panax ginseng, Panax notoginseng, and Aralia elata with data available. A ginsenoside found in Panax species that is dammarane which is substituted by hydroxy groups at the 3beta, 12beta and 20 pro-S positions, in which the hydroxy groups at positions 3 and 20 have been converted to the corresponding beta-D-glucopyranosides, and in which a double bond has been introduced at the 24-25 position. 20(S)-Ginsenoside Rg3 is the main component of Panax ginseng C. A. Meyer. Ginsenoside Rg3 inhibits Na+ and hKv1.4 channel with IC50s of 32.2±4.5 and 32.6±2.2 μM, respectively. 20(S)-Ginsenoside Rg3 also inhibits Aβ levels, NF-κB activity, and COX-2 expression. 20(S)-Ginsenoside Rg3 is the main component of Panax ginseng C. A. Meyer. Ginsenoside Rg3 inhibits Na+ and hKv1.4 channel with IC50s of 32.2±4.5 and 32.6±2.2 μM, respectively. 20(S)-Ginsenoside Rg3 also inhibits Aβ levels, NF-κB activity, and COX-2 expression. Ginsenoside F2, a metabolite from Ginsenoside Rb1, induces apoptosis accompanied by protective autophagy in breast cancer stem cells[1]. Ginsenoside F2, a metabolite from Ginsenoside Rb1, induces apoptosis accompanied by protective autophagy in breast cancer stem cells[1].
formic acid
The simplest carboxylic acid, containing a single carbon. Occurs naturally in various sources including the venom of bee and ant stings, and is a useful organic synthetic reagent. Principally used as a preservative and antibacterial agent in livestock feed. Induces severe metabolic acidosis and ocular injury in human subjects.
Propiverine
G - Genito urinary system and sex hormones > G04 - Urologicals > G04B - Urologicals > G04BD - Drugs for urinary frequency and incontinence C78272 - Agent Affecting Nervous System > C66880 - Anticholinergic Agent > C29704 - Antimuscarinic Agent D018373 - Peripheral Nervous System Agents > D001337 - Autonomic Agents > D010276 - Parasympatholytics D018377 - Neurotransmitter Agents > D018678 - Cholinergic Agents > D018680 - Cholinergic Antagonists C78272 - Agent Affecting Nervous System > C29698 - Antispasmodic Agent D000089162 - Genitourinary Agents > D064804 - Urological Agents
O-Methylsterigmatocystin
D009676 - Noxae > D011042 - Poisons > D009183 - Mycotoxins
methapyrilene
R - Respiratory system > R06 - Antihistamines for systemic use > R06A - Antihistamines for systemic use > R06AC - Substituted ethylene diamines D002491 - Central Nervous System Agents > D002492 - Central Nervous System Depressants > D006993 - Hypnotics and Sedatives D018377 - Neurotransmitter Agents > D018494 - Histamine Agents > D006633 - Histamine Antagonists C308 - Immunotherapeutic Agent > C29578 - Histamine-1 Receptor Antagonist D018926 - Anti-Allergic Agents
