Classification Term: 168695
苯环型化合物 (ontology term: cc1e878f5b989df85cfc9a3674f49dc7)
苯环型化合物
found 500 associated metabolites at class metabolite taxonomy ontology rank level.
Child Taxonomies: 外源苯环型化合物, 苯二酚类, 苯及其取代衍生物, 芳香烃类, 卤代乙酰苯胺类, 多元芳香环
Salicylic acid
Salicylic acid is a monohydroxybenzoic acid that is benzoic acid with a hydroxy group at the ortho position. It is obtained from the bark of the white willow and wintergreen leaves. It has a role as an antiinfective agent, an antifungal agent, a keratolytic drug, an EC 1.11.1.11 (L-ascorbate peroxidase) inhibitor, a plant metabolite, an algal metabolite and a plant hormone. It is a conjugate acid of a salicylate. It is a colorless solid, it is a precursor to and a metabolite of aspirin (acetylsalicylic acid). It is a plant hormone. The name is from Latin salix for willow tree. It is an ingredient in some anti-acne products. Salts and esters of salicylic acid are known as salicylates. Salicylic acid modulates COX1 enzymatic activity to decrease the formation of pro-inflammatory prostaglandins. Salicylate may competitively inhibit prostaglandin formation. Salicylates antirheumatic (nonsteroidal anti-inflammatory) actions are a result of its analgesic and anti-inflammatory mechanisms. Salicylic acid works by causing the cells of the epidermis to slough off more readily, preventing pores from clogging up, and allowing room for new cell growth. Salicylic acid inhibits the oxidation of uridine-5-diphosphoglucose (UDPG) competitively with nicotinamide adenosine dinucleotide and noncompetitively with UDPG. It also competitively inhibits the transferring of glucuronyl group of uridine-5-phosphoglucuronic acid to the phenolic acceptor. The wound-healing retardation action of salicylates is probably due mainly to its inhibitory action on mucopolysaccharide synthesis. Salicylic acid is biosynthesized from the amino acid phenylalanine. In Arabidopsis thaliana, it can be synthesized via a phenylalanine-independent pathway. Salicylic acid is an odorless white to light tan solid. Sinks and mixes slowly with water. (USCG, 1999) Salicylic acid is a monohydroxybenzoic acid that is benzoic acid with a hydroxy group at the ortho position. It is obtained from the bark of the white willow and wintergreen leaves. It has a role as an antiinfective agent, an antifungal agent, a keratolytic drug, an EC 1.11.1.11 (L-ascorbate peroxidase) inhibitor, a plant metabolite, an algal metabolite and a plant hormone. It is a conjugate acid of a salicylate. A compound obtained from the bark of the white willow and wintergreen leaves, and also prepared synthetically. It has bacteriostatic, fungicidal, and keratolytic actions. Its salts, the salicylates, are used as analgesics. Salicylic acid is a metabolite found in or produced by Escherichia coli (strain K12, MG1655). Salicylic Acid is a beta hydroxy acid that occurs as a natural compound in plants. It has direct activity as an anti-inflammatory agent and acts as a topical antibacterial agent due to its ability to promote exfoliation. A compound obtained from the bark of the white willow and wintergreen leaves, and also prepared synthetically. It has bacteriostatic, fungicidal, and keratolytic actions. Its salts, the salicylates, are used as analgesics. A compound obtained from the bark of the white willow and wintergreen leaves. It has bacteriostatic, fungicidal, and keratolytic actions. See also: Benzoic Acid (has active moiety); Methyl Salicylate (active moiety of); Benzyl salicylate (is active moiety of) ... View More ... A monohydroxybenzoic acid that is benzoic acid with a hydroxy group at the ortho position. It is obtained from the bark of the white willow and wintergreen leaves. Salicylic acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=69-72-7 (retrieved 2024-06-29) (CAS RN: 69-72-7). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). Salicylic acid (2-Hydroxybenzoic acid) inhibits cyclo-oxygenase-2 (COX-2) activity independently of transcription factor (NF-κB) activation[1]. Salicylic acid (2-Hydroxybenzoic acid) inhibits cyclo-oxygenase-2 (COX-2) activity independently of transcription factor (NF-κB) activation[1].
4-Hydroxybenzoic acid
4-Hydroxybenzoic acid, also known as p-hydroxybenzoate or 4-carboxyphenol, belongs to the class of organic compounds known as hydroxybenzoic acid derivatives. Hydroxybenzoic acid derivatives are compounds containing a hydroxybenzoic acid (or a derivative), which is a benzene ring bearing a carboxyl and a hydroxyl groups. 4-Hydroxybenzoic acid is a white crystalline solid that is slightly soluble in water and chloroform but more soluble in polar organic solvents such as alcohols and acetone. It is a nutty and phenolic tasting compound. 4-Hydroxybenzoic acid exists in all living species, ranging from bacteria to plants to humans. 4-Hydroxybenzoic acid can be found naturally in coconut. It is one of the main catechins metabolites found in humans after consumption of green tea infusions. It is also found in wine, in vanilla, in Açaí oil, obtained from the fruit of the açaí palm (Euterpe oleracea), at relatively high concetrations (892±52 mg/kg). It is also found in cloudy olive oil and in the edible mushroom Russula virescens. It has been detected in red huckleberries, rabbiteye blueberries, and corianders and in a lower concentration in olives, red raspberries, and almonds. In humans, 4-hydroxybenzoic acid is involved in ubiquinone biosynthesis. In particular, the enzyme 4-hydroxybenzoate polyprenyltransferase uses a polyprenyl diphosphate and 4-hydroxybenzoate to produce diphosphate and 4-hydroxy-3-polyprenylbenzoate. This enzyme participates in ubiquinone biosynthesis. 4-Hydroxybenzoic acid can be biosynthesized by the enzyme Chorismate lyase. Chorismate lyase is an enzyme that transforms chorismate into 4-hydroxybenzoate and pyruvate. This enzyme catalyses the first step in ubiquinone biosynthesis in Escherichia coli and other Gram-negative bacteria. 4-Hydroxybenzoate is an intermediate in many enzyme-mediated reactions in microbes. For instance, the enzyme 4-hydroxybenzaldehyde dehydrogenase uses 4-hydroxybenzaldehyde, NAD+ and H2O to produce 4-hydroxybenzoate, NADH and H+. This enzyme participates in toluene and xylene degradation in bacteria such as Pseudomonas mendocina. 4-hydroxybenzaldehyde dehydrogenase is also found in carrots. The enzyme 4-hydroxybenzoate 1-hydroxylase transforms 4-hydroxybenzoate, NAD(P)H, 2 H+ and O2 into hydroquinone, NAD(P)+, H2O and CO2. This enzyme participates in 2,4-dichlorobenzoate degradation and is found in Candida parapsilosis. The enzyme 4-hydroxybenzoate 3-monooxygenase transforms 4-hydroxybenzoate, NADPH, H+ and O2 into protocatechuate, NADP+ and H2O. This enzyme participates in benzoate degradation via hydroxylation and 2,4-dichlorobenzoate degradation and is found in Pseudomonas putida and Pseudomonas fluorescens. 4-Hydroxybenzoic acid is a popular antioxidant in part because of its low toxicity. 4-Hydroxybenzoic acid has estrogenic activity both in vitro and in vivo (PMID 9417843).
Isolated from many plants, free and combined. Alkyl esters of 4-hydroxybenzoic acid (see below) are used as food and cosmetic preservatives, mainly in their Na salt form, which makes them more water soluble. They are active at low concentrations and more pH-independent than the commonly used Benzoic acid
4-Vinylphenol
4-hydroxystyrene is a member of the class of phenols that is styrene carrying a hydroxy substituent at position 4. It has a role as a human urinary metabolite and a human xenobiotic metabolite. It derives from a hydride of a styrene. 4-Vinylphenol is a natural product found in Streptomyces, Cedronella canariensis, and other organisms with data available. 4-Vinylphenol is a metabolite found in or produced by Saccharomyces cerevisiae. 4-hydroxystyrene occurs frequently in different ciders, wines, foods and berries, e.g. cloudberry. Styrene is a prohapten metabolized in the skin by aryl hydrocarbon hydroxylase (AHH, EC 1.14.14.1) to styrene epoxide acting as the true hapten. Styrene occurs in nature and as a synthetic product.(PMID: 6713846). Flavour component of tea; flavouring ingredient
2-Hydroxycinnamic acid
2-coumaric acid, also known as o-coumaric acid, is a monohydroxycinnamic acid in which the hydroxy substituent is located at C-2 of the phenyl ring. It has a role as a plant metabolite. It is a conjugate acid of a 2-coumarate. It is a hydroxycinnamic acid, an organic compound that is a hydroxy derivative of cinnamic acid. There are three isomers of coumaric acids: o-coumaric acid, m-coumaric acid, and p-coumaric acid, that differ by the position of the hydroxy substitution of the phenyl group. 2-Hydroxycinnamic acid belongs to the class of organic compounds known as hydroxycinnamic acids. Hydroxycinnamic acids are compounds containing an cinnamic acid where the benzene ring is hydroxylated. 2-Hydroxycinnamic acid exists in all living organisms, ranging from bacteria to humans. 2-Hydroxycinnamic acid has been found in a few different foods, such as corns, hard wheats, and olives and in a lower concentration in pomegranates, american cranberries, and peanuts. 2-Hydroxycinnamic acid has also been detected, but not quantified in several different foods, such as carrots, soy beans, ryes, rye bread, and turmerics. Coumaric acid is a hydroxycinnamic acid, an organic compound that is a hydroxy derivative of cinnamic acid. There are three isomers, o-coumaric acid, m-coumaric acid, and p-coumaric acid, that differ by the position of the hydroxy substitution of the phenyl group. p-Coumaric acid is the most abundant isomer of the three in nature. o-Coumaric acid is found in many foods, some of which are common wheat, date, bilberry, and corn. 2-coumaric acid is a monohydroxycinnamic acid in which the hydroxy substituent is located at C-2 of the phenyl ring. It has a role as a plant metabolite. It is a conjugate acid of a 2-coumarate. 2-Hydroxycinnamic acid is a natural product found in Mikania glomerata, Coffea arabica, and other organisms with data available. See also: Ipomoea aquatica leaf (part of). The trans-isomer of 2-coumaric acid. o-Coumaric acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=583-17-5 (retrieved 2024-07-01) (CAS RN: 583-17-5). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).
2-Methoxy-4-vinylphenol
2-methoxy-4-vinylphenol is a member of the class of phenols that is guaiacol in which the hydrogen para- to the hydroxy group is replaced by a vinyl group. It has a role as a pheromone, a flavouring agent and a plant metabolite. 2-Methoxy-4-vinylphenol is a natural product found in Coffea, Coffea arabica, and other organisms with data available. 4-Vinylguaiacol is a metabolite found in or produced by Saccharomyces cerevisiae. See also: Moringa oleifera leaf oil (part of). 2-Methoxy-4-vinylphenol is an aromatic substance used as a flavoring agent. It is one of the compounds responsible for the natural aroma of buckwheat. A member of the class of phenols that is guaiacol in which the hydrogen para- to the hydroxy group is replaced by a vinyl group. Responsible for off-flavour of old fruit in stored orange juice 2-Methoxy-4-vinylphenol (2M4VP), a naturally Germination inhibitor, exerts potent anti-inflammatory effects[1][2]. 2-Methoxy-4-vinylphenol (2M4VP), a naturally Germination inhibitor, exerts potent anti-inflammatory effects[1][2].
Dopamine
Dopamine is a member of the catecholamine family of neurotransmitters in the brain and is a precursor to epinephrine (adrenaline) and norepinephrine (noradrenaline). Dopamine is synthesized in the body (mainly by nervous tissue and adrenal glands) first by the hydration of the amino acid tyrosine to DOPA by tyrosine hydroxylase and then by the decarboxylation of DOPA by aromatic-L-amino-acid decarboxylase. Dopamine is a major transmitter in the extrapyramidal system of the brain, and important in regulating movement. A family of receptors (dopamine receptors) mediates its action, which plays a major role in reward-motivated behaviour. Dopamine has many other functions outside the brain. In blood vessels, dopamine inhibits norepinephrine release and acts as a vasodilator (at normal concentrations); in the kidneys, it increases sodium excretion and urine output; in the pancreas, it reduces insulin production; in the digestive system, it reduces gastrointestinal motility and protects intestinal mucosa; and in the immune system, it reduces the activity of lymphocytes. Parkinsons disease, a degenerative condition causing tremor and motor impairment, is caused by a loss of dopamine-secreting neurons in an area of the midbrain called the substantia nigra. There is evidence that schizophrenia involves altered levels of dopamine activity, and most antipsychotic drugs used to treat this are dopamine antagonists, which reduce dopamine activity. Attention deficit hyperactivity disorder, bipolar disorder, and addiction are also characterized by defects in dopamine production or metabolism. It has been suggested that animals derived their dopamine-synthesizing machinery from bacteria via horizontal gene transfer that may have occurred relatively late in evolutionary time. This is perhaps a result of the symbiotic incorporation of bacteria into eukaryotic cells that gave rise to mitochondria. Dopamine is elevated in the urine of people who consume bananas. When present in sufficiently high levels, dopamine can be a neurotoxin and a metabotoxin. A neurotoxin is a compound that disrupts or attacks neural tissue. A metabotoxin is an endogenously produced metabolite that causes adverse health effects at chronically high levels. Chronically high levels of dopamine are associated with neuroblastoma, Costello syndrome, leukemia, phaeochromocytoma, aromatic L-amino acid decarboxylase deficiency, and Menkes disease (MNK). High levels of dopamine can lead to hyperactivity, insomnia, agitation and anxiety, depression, delusions, excessive salivation, nausea, and digestive problems. A study has shown that urinary dopamine is produced by Bacillus and Serratia (PMID: 24621061) Occurs in several higher plants, such as banana (Musa sapientum). As a member of the catecholamine family, dopamine is a precursor to norepinephrine (noradrenaline) and then epinephrine (adrenaline) in the biosynthetic pathways for these neurotransmitters. Dopamine is elevated in the urine of people who consume bananas. Dopamine is found in many foods, some of which are garden onion, purslane, garden tomato, and swiss chard. Dopamine (DA, a contraction of 3,4-dihydroxyphenethylamine) is a neuromodulatory molecule that plays several important roles in cells. It is an organic chemical of the catecholamine and phenethylamine families. Dopamine constitutes about 80\% of the catecholamine content in the brain. It is an amine synthesized by removing a carboxyl group from a molecule of its precursor chemical, L-DOPA, which is synthesized in the brain and kidneys. Dopamine is also synthesized in plants and most animals. In the brain, dopamine functions as a neurotransmitter—a chemical released by neurons (nerve cells) to send signals to other nerve cells. Neurotransmitters are synthesized in specific regions of the brain, but affect many regions systemically. The brain includes several distinct dopamine pathways, one of which plays a major role in the motivational component of reward-motivated behavior. The anticipation of most types of rewards increases the level of dopamine in the brain,[4] and many addictive drugs increase dopamine release or block its reuptake into neurons following release.[5] Other brain dopamine pathways are involved in motor control and in controlling the release of various hormones. These pathways and cell groups form a dopamine system which is neuromodulatory.[5] In popular culture and media, dopamine is often portrayed as the main chemical of pleasure, but the current opinion in pharmacology is that dopamine instead confers motivational salience;[6][7][8] in other words, dopamine signals the perceived motivational prominence (i.e., the desirability or aversiveness) of an outcome, which in turn propels the organism's behavior toward or away from achieving that outcome.[8][9] Outside the central nervous system, dopamine functions primarily as a local paracrine messenger. In blood vessels, it inhibits norepinephrine release and acts as a vasodilator; in the kidneys, it increases sodium excretion and urine output; in the pancreas, it reduces insulin production; in the digestive system, it reduces gastrointestinal motility and protects intestinal mucosa; and in the immune system, it reduces the activity of lymphocytes. With the exception of the blood vessels, dopamine in each of these peripheral systems is synthesized locally and exerts its effects near the cells that release it. Several important diseases of the nervous system are associated with dysfunctions of the dopamine system, and some of the key medications used to treat them work by altering the effects of dopamine. Parkinson's disease, a degenerative condition causing tremor and motor impairment, is caused by a loss of dopamine-secreting neurons in an area of the midbrain called the substantia nigra. Its metabolic precursor L-DOPA can be manufactured; Levodopa, a pure form of L-DOPA, is the most widely used treatment for Parkinson's. There is evidence that schizophrenia involves altered levels of dopamine activity, and most antipsychotic drugs used to treat this are dopamine antagonists which reduce dopamine activity.[10] Similar dopamine antagonist drugs are also some of the most effective anti-nausea agents. Restless legs syndrome and attention deficit hyperactivity disorder (ADHD) are associated with decreased dopamine activity.[11] Dopaminergic stimulants can be addictive in high doses, but some are used at lower doses to treat ADHD. Dopamine itself is available as a manufactured medication for intravenous injection. It is useful in the treatment of severe heart failure or cardiogenic shock.[12] In newborn babies it may be used for hypotension and septic shock.[13] Dopamine is synthesized in a restricted set of cell types, mainly neurons and cells in the medulla of the adrenal glands.[22] The primary and minor metabolic pathways respectively are: Primary: L-Phenylalanine → L-Tyrosine → L-DOPA → Dopamine[19][20] Minor: L-Phenylalanine → L-Tyrosine → p-Tyramine → Dopamine[19][20][21] Minor: L-Phenylalanine → m-Tyrosine → m-Tyramine → Dopamine[21][23][24] The direct precursor of dopamine, L-DOPA, can be synthesized indirectly from the essential amino acid phenylalanine or directly from the non-essential amino acid tyrosine.[25] These amino acids are found in nearly every protein and so are readily available in food, with tyrosine being the most common. Although dopamine is also found in many types of food, it is incapable of crossing the blood–brain barrier that surrounds and protects the brain.[26] It must therefore be synthesized inside the brain to perform its neuronal activity.[26] L-Phenylalanine is converted into L-tyrosine by the enzyme phenylalanine hydroxylase, with molecular oxygen (O2) and tetrahydrobiopterin as cofactors. L-Tyrosine is converted into L-DOPA by the enzyme tyrosine hydroxylase, with tetrahydrobiopterin, O2, and iron (Fe2+) as cofactors.[25] L-DOPA is converted into dopamine by the enzyme aromatic L-amino acid decarboxylase (also known as DOPA decarboxylase), with pyridoxal phosphate as the cofactor.[25] Dopamine itself is used as precursor in the synthesis of the neurotransmitters norepinephrine and epinephrine.[25] Dopamine is converted into norepinephrine by the enzyme dopamine β-hydroxylase, with O2 and L-ascorbic acid as cofactors.[25] Norepinephrine is converted into epinephrine by the enzyme phenylethanolamine N-methyltransferase with S-adenosyl-L-methionine as the cofactor.[25] Some of the cofactors also require their own synthesis.[25] Deficiency in any required amino acid or cofactor can impair the synthesis of dopamine, norepinephrine, and epinephrine.[25] Degradation Dopamine is broken down into inactive metabolites by a set of enzymes—monoamine oxidase (MAO), catechol-O-methyl transferase (COMT), and aldehyde dehydrogenase (ALDH), acting in sequence.[27] Both isoforms of monoamine oxidase, MAO-A and MAO-B, effectively metabolize dopamine.[25] Different breakdown pathways exist but the main end-product is homovanillic acid (HVA), which has no known biological activity.[27] From the bloodstream, homovanillic acid is filtered out by the kidneys and then excreted in the urine.[27] The two primary metabolic routes that convert dopamine into HVA are:[28] Dopamine → DOPAL → DOPAC → HVA – catalyzed by MAO, ALDH, and COMT respectively Dopamine → 3-Methoxytyramine → HVA – catalyzed by COMT and MAO+ALDH respectively In clinical research on schizophrenia, measurements of homovanillic acid in plasma have been used to estimate levels of dopamine activity in the brain. A difficulty in this approach however, is separating the high level of plasma homovanillic acid contributed by the metabolism of norepinephrine.[29][30] Although dopamine is normally broken down by an oxidoreductase enzyme, it is also susceptible to oxidation by direct reaction with oxygen, yielding quinones plus various free radicals as products.[31] The rate of oxidation can be increased by the presence of ferric iron or other factors. Quinones and free radicals produced by autoxidation of dopamine can poison cells, and there is evidence that this mechanism may contribute to the cell loss that occurs in Parkinson's disease and other conditions.[32]
3-Hydroxyanthranilic acid
3-Hydroxyanthranilic acid, also known as 2-amino-3-hydroxy-benzoate or 3-ohaa, belongs to the class of organic compounds known as hydroxybenzoic acid derivatives. Hydroxybenzoic acid derivatives are compounds containing a hydroxybenzoic acid (or a derivative), which is a benzene ring bearing a carboxyl and a hydroxyl groups. 3-Hydroxyanthranilic acid is a drug. 3-Hydroxyanthranilic acid exists in all living species, ranging from bacteria to humans. Within humans, 3-hydroxyanthranilic acid participates in a number of enzymatic reactions. In particular, 3-hydroxyanthranilic acid and L-alanine can be biosynthesized from L-3-hydroxykynurenine through the action of the enzyme kynureninase. In addition, 3-hydroxyanthranilic acid can be converted into cinnavalininate through the action of the enzyme catalase. 3-Hydroxyanthranilic acid is an intermediate in the metabolism of tryptophan. In humans, 3-hydroxyanthranilic acid is involved in tryptophan metabolism. Outside of the human body, 3-hydroxyanthranilic acid has been detected, but not quantified in brassicas. This could make 3-hydroxyanthranilic acid a potential biomarker for the consumption of these foods. It is new antioxidant isolated from methanol extract of tempeh. It is effective in preventing autoxidation of soybean oil and powder, while antioxidant 6,7,4-trihydroxyisoflavone is not. D000975 - Antioxidants > D016166 - Free Radical Scavengers [Raw Data] CBA14_3-OH-anthranili_pos_30eV_1-6_01_808.txt [Raw Data] CBA14_3-OH-anthranili_neg_40eV_1-6_01_832.txt [Raw Data] CBA14_3-OH-anthranili_pos_40eV_1-6_01_809.txt [Raw Data] CBA14_3-OH-anthranili_neg_20eV_1-6_01_830.txt [Raw Data] CBA14_3-OH-anthranili_neg_10eV_1-6_01_829.txt [Raw Data] CBA14_3-OH-anthranili_pos_10eV_1-6_01_806.txt [Raw Data] CBA14_3-OH-anthranili_pos_20eV_1-6_01_807.txt [Raw Data] CBA14_3-OH-anthranili_neg_30eV_1-6_01_831.txt D020011 - Protective Agents > D000975 - Antioxidants Isolated from Brassica oleracea (cauliflower) 3-Hydroxyanthranilic acid is a tryptophan metabolite in the kynurenine pathway.
4-hydroxymandelic acid
p-Hydroxymandelic acid, also known as 4-hydroxymandelate or 4-hydroxyphenylglycolate, belongs to the class of organic compounds known as 1-hydroxy-2-unsubstituted benzenoids. These are phenols that are unsubstituted at the 2-position. p-Hydroxymandelic acid has been detected, but not quantified in, a few different foods, such as anatidaes (Anatidae), chickens (Gallus gallus), and domestic pigs (Sus scrofa domestica). This could make p-hydroxymandelic acid a potential biomarker for the consumption of these foods. p-Hydroxymandelic acid is a secondary metabolite. Secondary metabolites are metabolically or physiologically non-essential metabolites that may serve a role as defense or signalling molecules. In some cases they are simply molecules that arise from the incomplete metabolism of other secondary metabolites. Based on a literature review a significant number of articles have been published on p-Hydroxymandelic acid. p-Hydroxymandelic acid is a valuable aromatic fine chemical and widely used for production of pharmaceuticals and food additives.
Epinephrine
Epinephrine, also known as adrenaline, is both a neurotransmitter and a hormone. It plays an important role in your body’s “fight-or-flight” response. It’s also used as a medication to treat many life-threatening conditions. Epinephrine is a catecholamine, a sympathomimetic monoamine derived from the amino acids phenylalanine and tyrosine. It is the active sympathomimetic hormone secreted from the adrenal medulla in most species. It stimulates both the alpha- and beta- adrenergic systems, causes systemic vasoconstriction and gastrointestinal relaxation, stimulates the heart, and dilates bronchi and cerebral vessels. It is used in asthma and cardiac failure and to delay absorption of local anesthetics. Epinephrine also constricts arterioles in the skin and gut while dilating arterioles in leg muscles. It elevates the blood sugar level by increasing hydrolysis of glycogen to glucose in the liver, and at the same time begins the breakdown of lipids in adipocytes. Epinephrine has a suppressive effect on the immune system. [HMDB] Epinephrine, also called adrenaline, is both a hormone and a neurotransmitter. As a hormone, it’s made and released by your adrenal glands, which are hat-shaped glands that sit on top of each kidney. As a central nervous system neurotransmitter, it’s a chemical messenger that helps transmit nerve signals across nerve endings to another nerve cell, muscle cell or gland cell. Epinephrine is part of your sympathetic nervous system, which is part of your body’s emergency response system to danger — the “fight-or-flight” response. Medically, the flight-or-flight response is known as the acute stress response. Epinephrine is also called a catecholamine, as are norepinephrine and dopamine. They’re given this name because of a certain molecule in its structure. As a hormone, epinephrine is made from norepinephrine inside of your adrenal gland. As a neurotransmitter, epinephrine plays a small role. Only a small amount is produced in your nerves. It plays a role in metabolism, attention, focus, panic and excitement. Abnormal levels are linked to sleep disorders, anxiety, hypertension and lowered immunity. Epinephrine’s major action is in its role as a hormone. Epinephrine is released by your adrenal glands in response to stress. This reaction causes a number of changes in your body and is known as the fight-or-flight response.
Norepinephrine
Norepinephrine is the precursor of epinephrine that is secreted by the adrenal medulla and is a widespread central and autonomic neurotransmitter. Norepinephrine is the principal transmitter of most postganglionic sympathetic fibers and of the diffuse projection system in the brain arising from the locus ceruleus. It is also found in plants and is used pharmacologically as a sympathomimetic. Norepinephrine is elevated in the urine of people who consume bananas. Norepinephrine is also a microbial metabolite; urinary noradrenaline is produced by Escherichia, Bacillus, and Saccharomyces (PMID: 24621061). Norepinephrine is found in alcoholic beverages, banana peels and pulp (Musa paradisiaca), red plum fruit (Prunus domestica), orange pulp (Citrus sinensis), potato tubers (Solanum tuberosum), and whole purslane (Portulaca oleracea). P. oleracea is the richest of these sources. Norepinephrine has also been identified as a uremic toxin according to the European Uremic Toxin Working Group (PMID: 22626821). Present in banana peel and pulp (Musa paradisiaca), red plum fruit (Prunus domestica), orange pulp (Citrus sinensis), potato tubers (Solanum tuberosum) and whole purslane (Portulaca oleracea). P. oleracea is the richest of these sources. xi-Norepinephrine is found in many foods, some of which are potato, green vegetables, alcoholic beverages, and fruits.
Urocanic acid
Urocanic acid (CAS: 104-98-3) is a breakdown (deamination) product of histidine. In the liver, urocanic acid is an intermediate in the conversion of histidine to glutamic acid, whereas, in the epidermis, it accumulates and may be both a UV protectant and an immunoregulator. Urocanic acid (UA) exists as a trans isomer (t-UA, approximately 30 mg/cm2) in the uppermost layer of the skin (stratum corneum). t-UA is formed as the cells of the second layer of the skin become metabolically inactive. During this process, proteins and membranes degrade, histidine is released, and histidase (histidine ammonia lyase) catalyzes the deamination of histidine to form t-UA. t-UA accumulates in the epidermis until removal by either the monthly skin renewal cycle or sweat. Upon absorption of UV light, the naturally occurring t-UA isomerizes to its cis form, c-UA. Because DNA lesions (e.g., pyrimidine dimers) in the lower epidermis can result from UV-B absorption, initial research proposed that t-UA acted as a natural sunscreen absorbing UV-B in the stratum corneum before the damaging rays could penetrate into lower epidermal zones. Researchers have found that c-UA also suppresses contact hypersensitivity and delayed hypersensitivity, reduces the Langerhans cell count in the epidermis, prolongs skin-graft survival time, and affects natural killer cell activity. (E)-Urocanic acid is found in mushrooms. It has been isolated from Coprinus atramentarius (common ink cap) and Phallus impudicus (common stinkhorn). Trans-urocanic acid, also known as 4-imidazoleacrylic acid or urocanate, belongs to imidazolyl carboxylic acids and derivatives class of compounds. Those are organic compounds containing a carboxylic acid chain (of at least 2 carbon atoms) linked to an imidazole ring. Trans-urocanic acid is soluble (in water) and a weakly acidic compound (based on its pKa). Trans-urocanic acid can be found in mung bean, which makes trans-urocanic acid a potential biomarker for the consumption of this food product. Trans-urocanic acid can be found primarily in most biofluids, including sweat, feces, blood, and urine, as well as in human liver and skin tissues. Trans-urocanic acid exists in all living organisms, ranging from bacteria to humans. In humans, trans-urocanic acid is involved in the histidine metabolism. Trans-urocanic acid is also involved in a couple of metabolic disorders, which include ammonia recycling and histidinemia. Urocanic acid, produced in the upper layers of mammalian skin, is a major absorber of ultraviolet radiation (UVR). Urocanic acid, produced in the upper layers of mammalian skin, is a major absorber of ultraviolet radiation (UVR).
2,6-Dihydroxybenzoic acid
2,6-dihydroxybenzoic acid, also known as gamma-resorcylic acid or 6-hydroxysalicylic acid, is a member of the class of compounds known as salicylic acids. Salicylic acids are ortho-hydroxylated benzoic acids. 2,6-dihydroxybenzoic acid is slightly soluble (in water) and a moderately acidic compound (based on its pKa). 2,6-dihydroxybenzoic acid can be found in beer and olive, which makes 2,6-dihydroxybenzoic acid a potential biomarker for the consumption of these food products. 2,6-dihydroxybenzoic acid can be found primarily in blood and urine. 2,6-Dihydroxybenzoic acid (γ-resorcylic acid) is a dihydroxybenzoic acid. It is a very strong acid due to its intramolecular hydrogen bonding . 2,6-dihydroxybenzoic acid is a secondary metabolite of salicylic acid which has been hydrolyzed by liver enzymes during phase I metabolism. 2,6-Dihydroxybenzoic acid is a secondary metabolite of salicylic acid which has been hydrolyzed by liver enzymes during phase I metabolism. 2,6-Dihydroxybenzoic acid is a secondary metabolite of salicylic acid which has been hydrolyzed by liver enzymes during phase I metabolism.
4-Hydroxyphenylpyruvic acid
3-(4-hydroxy-phenyl)pyruvic acid, also known as 4-hydroxy a-oxobenzenepropanoate or 3-(p-hydroxyphenyl)-2-oxopropanoate, belongs to phenylpyruvic acid derivatives class of compounds. Those are compounds containing a phenylpyruvic acid moiety, which consists of a phenyl group substituted at the second position by an pyruvic acid. 3-(4-hydroxy-phenyl)pyruvic acid is slightly soluble (in water) and a moderately acidic compound (based on its pKa). 3-(4-hydroxy-phenyl)pyruvic acid can be synthesized from pyruvic acid. 3-(4-hydroxy-phenyl)pyruvic acid can also be synthesized into 4-hydroxyphenylpyruvic acid oxime. 3-(4-hydroxy-phenyl)pyruvic acid can be found in a number of food items such as garden onion (variety), rose hip, sourdough, and horseradish tree, which makes 3-(4-hydroxy-phenyl)pyruvic acid a potential biomarker for the consumption of these food products. 3-(4-hydroxy-phenyl)pyruvic acid can be found primarily in blood and urine, as well as in human prostate tissue. 3-(4-hydroxy-phenyl)pyruvic acid exists in all eukaryotes, ranging from yeast to humans. In humans, 3-(4-hydroxy-phenyl)pyruvic acid is involved in few metabolic pathways, which include disulfiram action pathway, phenylalanine and tyrosine metabolism, and tyrosine metabolism. 3-(4-hydroxy-phenyl)pyruvic acid is also involved in several metabolic disorders, some of which include tyrosinemia type I, phenylketonuria, tyrosinemia, transient, of the newborn, and alkaptonuria. Moreover, 3-(4-hydroxy-phenyl)pyruvic acid is found to be associated with hawkinsinuria and phenylketonuria. 4-Hydroxyphenylpyruvic acid (4-HPPA) is a keto acid that is involved in the tyrosine catabolism pathway. It is a product of the enzyme (R)-4-hydroxyphenyllactate dehydrogenase (EC 1.1.1.222) and is formed during tyrosine metabolism. The conversion from tyrosine to 4-HPPA is catalyzed by tyrosine aminotransferase. Additionally, 4-HPPA can be converted to homogentisic acid which is one of the precursors to ochronotic pigment. The enzyme 4-hydroxyphenylpyruvic acid dioxygenase (HPD) catalyzes the reaction that converts 4-hydroxyphenylpyruvic acid to homogentisic acid. A deficiency in the catalytic activity of HPD is known to lead to tyrosinemia type III, an autosomal recessive disorder characterized by elevated levels of blood tyrosine and massive excretion of tyrosine derivatives into urine. It has been shown that hawkinsinuria, an autosomal dominant disorder characterized by the excretion of hawkinsin, may also be a result of HPD deficiency (PMID: 11073718). Moreover, 4-hydroxyphenylpyruvic acid is also found to be associated in phenylketonuria, which is also an inborn error of metabolism. There are two isomers of HPPA, specifically 4HPPA and 3HPPA, of which 4HPPA is the most common. 4-HPPA has been found to be a microbial metabolite in Escherichia (ECMDB). KEIO_ID H007 4-Hydroxyphenylpyruvic acid is an intermediate in the metabolism of the amino acid phenylalanine. 4-Hydroxyphenylpyruvic acid is an intermediate in the metabolism of the amino acid phenylalanine.
M-Coumaric acid
m-Coumaric acid, also known as 3-coumarate, belongs to the class of organic compounds known as hydroxycinnamic acids. Hydroxycinnamic acids are compounds containing an cinnamic acid where the benzene ring is hydroxylated. m-Coumaric acid exists in all living organisms, ranging from bacteria to humans. m-Coumaric acid (CAS: 588-30-7) is a polyphenol metabolite from caffeic acid, formed by the gut microflora. Outside of the human body, m-Coumaric acid is found, on average, in the highest concentration within a few different foods, such as olives, corns, and beers. m-Coumaric acid has also been detected, but not quantified in several different foods, such as carrots, strawberries, grape wines, garden tomato, and bilberries. MCT-mediated absorption of phenolic compounds per se and their colonic metabolites would exert a significant impact on human health (PMID:16870009, 15479001, 15479001). m-Coumaric acid is transported by the monocarboxylic acid transporter (MCT). The amount of this compound in human biofluids is diet-dependant. m-Coumaric acid is detected after the consumption of whole grain. Coumaric acid is a hydroxycinnamic acid, an organic compound that is a hydroxy derivative of cinnamic acid. There are three isomers, o-coumaric acid, m-coumaric acid, and p-coumaric acid, that differ by the position of the hydroxy substitution of the phenyl group. p-Coumaric acid is the most abundant isomer of the three in nature. m-Coumaric acid is found in many foods, some of which are corn, garden tomato (variety), grape wine, and beer. Acquisition and generation of the data is financially supported in part by CREST/JST. (E)-m-Coumaric acid (3-Hydroxycinnamic acid) is an aromatic acid that highly abundant in food. (E)-m-Coumaric acid (3-Hydroxycinnamic acid) is an antioxidant. (E)-m-Coumaric acid (3-Hydroxycinnamic acid) is an aromatic acid that highly abundant in food. (E)-m-Coumaric acid (3-Hydroxycinnamic acid) is an antioxidant. m-Coumaric acid is a polyphenol metabolite from caffeic acid, formed by the gut microflora and the amount in human biofluids is diet-dependant. m-Coumaric acid is a polyphenol metabolite from caffeic acid, formed by the gut microflora and the amount in human biofluids is diet-dependant.
Tyramine
Tyramine is a monoamine compound derived from the amino acid tyrosine. Tyramine is metabolized by the enzyme monoamine oxidase. In foods, it is often produced by the decarboxylation of tyrosine during fermentation or decay. Foods containing considerable amounts of tyramine include fish, chocolate, alcoholic beverages, cheese, soy sauce, sauerkraut, and processed meat. A large dietary intake of tyramine can cause an increase in systolic blood pressure of 30 mmHg or more. Tyramine acts as a neurotransmitter via a G protein-coupled receptor with high affinity for tyramine called TA1. The TA1 receptor is found in the brain as well as peripheral tissues including the kidney. An indirect sympathomimetic, Tyramine can also serve as a substrate for adrenergic uptake systems and monoamine oxidase so it prolongs the actions of adrenergic transmitters. It also provokes transmitter release from adrenergic terminals. Tyramine is a biomarker for the consumption of cheese [Spectral] Tyramine (exact mass = 137.08406) and L-Methionine (exact mass = 149.05105) were not completely separated on HPLC under the present analytical conditions as described in AC$XXX. Additionally some of the peaks in this data contains dimers and other unidentified ions. [Spectral] Tyramine (exact mass = 137.08406) and Glutathione (exact mass = 307.08381) were not completely separated on HPLC under the present analytical conditions as described in AC$XXX. Additionally some of the peaks in this data contains dimers and other unidentified ions. D018377 - Neurotransmitter Agents > D014179 - Neurotransmitter Uptake Inhibitors > D018759 - Adrenergic Uptake Inhibitors D018373 - Peripheral Nervous System Agents > D001337 - Autonomic Agents > D013566 - Sympathomimetics Acquisition and generation of the data is financially supported in part by CREST/JST. D018377 - Neurotransmitter Agents > D018663 - Adrenergic Agents IPB_RECORD: 267; CONFIDENCE confident structure CONFIDENCE standard compound; INTERNAL_ID 5105 D049990 - Membrane Transport Modulators KEIO_ID T008 Tyramine is an amino acid that helps regulate blood pressure. Tyramine occurs naturally in the body, and it's found in certain foods[1]. Tyramine is an amino acid that helps regulate blood pressure. Tyramine occurs naturally in the body, and it's found in certain foods[1].
p-Cresol
para-Cresol, also 4-methylphenol, is an organic compound with the formula CH3C6H4(OH). P-cresol is a cresol that consists of toluene substituted by a hydroxy group at position 4. It is a metabolite of aromatic amino acid metabolism produced by intestinal microflora in humans and animals. It has a role as a uremic toxin, a human metabolite and an Escherichia coli metabolite. It is a colourless solid that is widely used intermediate in the production of other chemicals. It is a derivative of phenol and is an isomer of o-cresol and m-cresol. It is a partially lipophilic moiety which strongly binds to plasma protein (close to 100\\%) under normal conditions. p-Cresol is metabolized through conjugation, mainly sulphation and glucuronization, but removal of the unconjugated p-cresol is, at least in part, via the urine. Therefore it is not surprising that this compound, together with several other phenoles, is retained when the kidneys fail. P-Cresol is an end-product of protein breakdown, and an increase of the nutritional protein load in healthy individuals results in enhanced generation and urinary excretion. The serum p-cresol concentration in uremic patients can be decreased by changing to a low-protein diet. p-Cresol is one of the metabolites of the amino acid tyrosine, and to a certain extent also of phenylalanine, which are converted to 4-hydroxyphenylacetic acid by intestinal bacteria, before being decarboxylated to p-cresol (putrefaction). The main contributing bacteria are aerobes (mainly enterobacteria), but to a certain extent also anaerobes play a role (mainly Clostridium perfringens). In uremia, modifications in the intestinal flora result in the specific overgrowth of bacteria that are specific p-cresol producers. The administration of antibiotics reduces urinary excretion of p-cresol, as a result of the liquidation of the producing bacteria. Environmental factors might also contribute. The liver cytochrome P450 metabolizes toluene to benzyl alcohol, but also to o-cresol and p-cresol. Toluene is not only used industrially, but it is also the most widely abusively inhaled solvent. Furthermore, p-cresol is a metabolite of menthofuran, one of the metabolites of R-(+)-pulegone, which is found in extracts from the plants Mentha pulegium and Hedeoma pulegioides, commonly known as pennyroyal oil and pennyroyal tea. These extracts are popular as unconventional herbal therapeutic agents and are applied as abortiva, diaphoretics, emmenagogues, and psychedelic drugs. Pennyroyal oil is extensively used for its pleasant mint-like smell in the flavoring industry. The toxicity of pennyroyal oil and menthofuran is well known. Another compound used in traditional medicine, especially in Japan, which is a precursor of p-cresol is wood tar creosote. p-Cresol has been reported to affect several biochemical, biological and physiological functions: (i) it diminishes the oxygen uptake of rat cerebral cortex slices; (ii) it increases the free active drug concentration of warfarin and diazepam; (iii) it has been related to growth retardation in the weanling pig; (iv) it alters cell membrane permeability, at least in bacteria; (v) it induces LDH leakage from rat liver slices; (vi) it induces susceptibility to auditive epileptic crises; and (vii) it blocks cell K+ channels. (PMID:10570076). p-Cresol is a uremic toxin that is at least partially removed by peritoneal dialysis in haemodialysis patients, and has been involved in the progression of renal failure (PMID:11169029). At concentrations encountered during uremia, p-cresol inhibits phagocyte function and decreases leukocyte adhesion to cytokine-stimulated endothelial cells. (PMID:14681860). p-Cresol can be found in Bacteroides, Bifidobacterium, Clostridium, Enterobacter and Lactobacillus (PMID:2394806; PMID:30208103). As a volatile organic compound, it has been identified as a fecal biomarker of Clostridium difficile infection (PMID:30986230). Present in blackcurrant buds, asparagus, cooked cured pork, black tea, fermented tea, yellow passion fruit juice, malt, peated malt, kumazasa (Sasa albo-marginata), lambs lettuce, squid and cuttlefish. Flavouring ingredient. 4-Methylphenol is found in many foods, some of which are animal foods, cereals and cereal products, tamarind, and tarragon.
3-(4-hydroxyphenyl)lactate
Hydroxyphenyllactic acid or 4-hydroxyphenyllactate (the L-form) is a tyrosine metabolite. The level of L-hydroxyphenyllactic acid is elevated in patients with a deficiency of the enzyme p-hydroxyphenylpyruvate oxidase (EC 1.14.2.2) (PMID: 4720815). L-hydroxyphenyllactate is present in relatively higher concentrations in the cerebrospinal fluid and urine of patients with phenylketonuria (PKU) and tyrosinemia (PMID: 3126358). However, the D-form of hydroxyphenyllactate is of bacterial origin and is also found in individuals with bacterial overgrowth or unusual gut microflora (PMID: 3126358). Microbial hydroxyphenyllactate is likely derived from phenolic or polyphenolic compounds in the diet. Bifidobacteria and lactobacilli produce considerable amounts of phenyllactic and p-hydroxyphenyllactic acids (PMID: 23061754). It has also been shown that hydroxyphenyllactate decreases ROS (reactive oxygen species) production in both mitochondria and neutrophils and so hydroxyphenyllactate may function as a natural anti-oxidant (PMID: 23061754). Hydroxyphenyllactic acid is a microbial metabolite found in Acinetobacter, Bacteroides, Bifidobacteria, Bifidobacterium, Clostridium, Enterococcus, Escherichia, Eubacterium, Klebsiella, Lactobacillus, Pseudomonas and Staphylococcus (PMID: 19961416). Acquisition and generation of the data is financially supported in part by CREST/JST. Hydroxyphenyllactic acid is an antifungal metabolite.
Styrene
Styrene, also known as vinylbenzene or phenylethylene, belongs to the class of organic compounds known as styrenes. These are organic compounds containing an ethenylbenzene moiety. The metabolites of styrene are excreted mainly in the urine. Styrene is possibly neutral. Styrene is a sweet, balsamic, and floral tasting compound. Styrene has been detected, but not quantified, in several different foods, such as coffee and coffee products, fruits, cocoa and cocoa products, alcoholic beverages, and chinese cinnamons. This could make styrene a potential biomarker for the consumption of these foods. A minor pathway of styrene metabolism involves the formation of phenylacetaldehyde from styrene 7,8-oxide or cytochrome P450 conversion of styrene to pheylethanol and subsequent metabolism to phenylacetic acid. Styrene is formally rated as a possible carcinogen (by IARC 2B) and is also a potentially toxic compound. Styrene oxide is predominantly metabolized by epoxide hydrolase to form styrene glycol; the styrene glycol is subsequently converted to mandelic acid, phenylglyoxylic acid, and hippuric acid. Styrene, with regard to humans, has been found to be associated with several diseases such as nonalcoholic fatty liver disease and ulcerative colitis; styrene has also been linked to the inborn metabolic disorder celiac disease. Styrene may be absorbed following ingestion, inhalation, or dermal exposure. Breathing high levels of styrene may cause nervous system effects such as changes in color vision, tiredness, feeling drunk, slowed reaction time, concentration problems, or balance problems. Chest burning, wheezing, and dyspnea may also occur. Styrene causes nervous system depression and may be carcinogenic. Present in cranberry, bilberry, currants, grapes, vinegar, parsley, milk and dairy products, whisky, cocoa, coffee, tea, roasted filberts and peanuts. Flavouring ingredient. Polymers are used in ion-exchange resins in food processing. Indirect food additive arising from adhesives, oatings and packaging materials
3-(3-hydroxyphenyl)propionate
3-(3-Hydroxyphenyl)propanoic (hMPP) acid is one of the major metabolites of ingested caffeic acid (PMID: 15479001) and of the phenolic degradation products of proanthocyanidins (the most abundant polyphenol present in chocolate) by the microflora in the colon (PMID: 12663291). mHPP is suspected to have antioxidants properties and is actively absorbed by the monocarboxylic acid transporter (MCT) in intestinal Caco-2 cell monolayers (PMID: 15479001, 12663291). hMPP has been found to be a metabolite of Clostridium, Escherichia, and Eubacterium (PMID: 28393285, 19520845). 3-(3-Hydroxyphenyl)propanoic acid is a flavonoid metabolite. 3-(3-Hydroxyphenyl)propanoic acid is a phenolic acid metabolite formed by the gut microflora detected after the consumption of whole grain. 3-(3-Hydroxyphenyl)propanoic (hMPP) acid is one of the major metabolites of ingested caffeic acid (PMID 15479001) and of the phenolic degradation products of proanthocyanidins (the most abundant polyphenol present in chocolate) by the microflora in the colon (PMID 12663291). mHPP is suspected to have antioxidants properties and is actively absorbed by the monocarboxylic acid transporter (MCT) in intestinal Caco-2 cell monolayers (PMID 15479001, 12663291). [HMDB] 3-(3-Hydroxyphenyl)propionic acid is a flavonoid metabolite formed by human microflora. 3-(3-Hydroxyphenyl)propionic acid shows vasodilatory activity[1]. 3-(3-Hydroxyphenyl)propionic acid is a flavonoid metabolite formed by human microflora. 3-(3-Hydroxyphenyl)propionic acid shows vasodilatory activity[1].
P-Hydroxyphenylethanolamine
Alkaloid from leaves of tabasco pepper (Capsicum frutescens), nutgrass (Cyperus rotundus) and leaves or fruit of Citrus subspecies Occurs in many animal tissues; found in high concs. in octopus p-Octopamine is an amine in traces quantities in plasma and cerebrospinal fluid in humans with septic encephalopathy (PMID 15932098). D018377 - Neurotransmitter Agents > D018663 - Adrenergic Agents > D000322 - Adrenergic Agonists D002317 - Cardiovascular Agents > D014662 - Vasoconstrictor Agents C - Cardiovascular system > C01 - Cardiac therapy > C01C - Cardiac stimulants excl. cardiac glycosides > C01CA - Adrenergic and dopaminergic agents C78272 - Agent Affecting Nervous System > C29747 - Adrenergic Agent > C87053 - Adrenergic Agonist
Phenol sulfate
Phenol sulphate, also known as phenylsulfate or aryl sulphate, belongs to the class of organic compounds known as phenylsulfates. Phenylsulfates are compounds containing a sulfate group conjugated to a phenyl group. In normal humans, phenol sulphate is primarily a gut-derived metabolite that arises from the activity of the bacterial enzyme tyrosine phenol-lyase, which is responsible for the synthesis of phenol from dietary tyrosine (PMID: 31015435). Phenol sulphate can also arise from the consumption of phenol or from phenol poisoning (PMID: 473790). Phenol sulphate is produced from the conjugation of phenol with sulphate in the liver. In particular, phenol sulphate can be biosynthesized from phenol and phosphoadenosine phosphosulfate through the action of the enzyme sulfotransferase 1A1 in the liver. Phenol sulphate can be found in most mammals (mice, rats, sheep, dogs, humans) and likely most animals. Phenol sulphate is a uremic toxin (PMID: 30068866). It is a protein-bound uremic solute that induces reactive oxygen species (ROS) production and decreases glutathione levels, rendering cells vulnerable to oxidative stress (PMID: 29474405). In experimental models of diabetes, phenol sulphate administration has been shown to induce albuminuria and podocyte damage. In a diabetic patient cohort, phenol sulphate levels were found to significantly correlate with basal and predicted 2-year progression of albuminuria in patients with microalbuminuria (PMID: 31015435).
Isoeugenol
Isoeugenol is a pale yellow oily liquid with a spice-clove odor. Freezes at 14 °F. Density 1.08 g / cm3. Occurs in ylang-ylang oil and other essential oils. Isoeugenol is a phenylpropanoid that is an isomer of eugenol in which the allyl substituent is replaced by a prop-1-enyl group. It has a role as an allergen and a sensitiser. It is a phenylpropanoid and an alkenylbenzene. It is functionally related to a guaiacol. Isoeugenol is a commonly used fragrance added to many commercially available products, and occurs naturally in the essential oils of plants such as ylang-ylang. It is also a significant dermatologic sensitizer and allergen, and as a result has been restricted to 200 p.p.m. since 1998 according to guidelines issued by the fragrance industry. Allergic reactivity to Isoeugenol may be identified with a patch test. Isoeugenol is a natural product found in Chaerophyllum macrospermum, Origanum sipyleum, and other organisms with data available. Isoeugenol is is a clear to pale yellow oily liquid extracted from certain essential oils especially from clove oil and cinnamon. It is very slightly soluble in water and soluble in organic solvents. It has a spicy odor and taste of clove. Isoeugenol is prepared from eugenol by heating. Eugenol is used in perfumeries, flavorings, essential oils and in medicine (local antiseptic and analgesic). It is used in the production of isoeugenol for the manufacture of vanillin. Eugenol derivatives or methoxyphenol derivatives in wider classification are used in perfumery and flavoring. They are used in formulating insect attractants and UV absorbers, analgesics, biocides and antiseptics. They are also used in manufacturing stabilizers and antioxidants for plastics and rubbers. Isoeugenol is used in manufacturing perfumeries, flavorings, essential oils (odor description: Clove, spicy, sweet, woody) and in medicine (local antiseptic and analgesic) as well as vanillin. (A7915). E-4-Propenyl-2-methoxyphenol is a metabolite found in or produced by Saccharomyces cerevisiae. Isoeugenol is an isomer of eugenol, wherein the double bond on the alkyl chain is shifted by one carbon. It also known as propenylgualacol, belongs to the class of organic compounds known as methoxyphenols. Methoxyphenols are compounds containing a methoxy group attached to the benzene ring of a phenol moiety. Isoeugenol is also classified as a phenylpropene, a propenyl-substituted guaiacol. Isoeugenol may occur as either the cis (Z) or trans (E) isomer. Trans (E) isoeugenol is crystalline while cis (Z) isoeugenol is a pale, yellow liquid. Isoeugenol is very slightly soluble in water and soluble in organic solvents. It has a spicy, sweet, carnation-like odour and tastes of sweet spice and clove. Isoeugenol is a widely used food flavoring agent and a perfuming agent. As a food flavoring agent, it is responsible for the flavor of nutmeg (in pumpkin pies), As a fragrance, it is extensively used as a scent agent in consumer products such as soaps, shampoos, perfumes, detergents and bath tissues (often labeled as ‚ÄúFragrance‚Äù rather than isoeugenol). However, some individuals can develop allergies to isoeugenol as it appears to be a strong contact allergen (PMID:10554062 ). Isoeugenol can be prepared from eugenol by heating. In addition to its industrial production via eugenol, isoeugenol can also be extracted from certain essential oils especially from clove oil and cinnamon. It is found naturally in a wide number of foods, spices and plants including allspice, basil, blueberries, cinnamon, cloves, coffee, dill, ginber, nutmeg, thyme and turmeric. Isoeugenol is also a component of wood smoke and liquid smoke. It is one of several phenolic compounds responsible for the mold-inhibiting effect of smoke on meats and cheeses. Isoeugenol (specifically the acetate ester) has also been used in the production of vanillin. Isoeugenol is one of several non-cannabinoid phenols found in cannabis plants (PMID:6991645 ). (e)-isoeugenol, also known as 2-methoxy-4-propenylphenol or propenylgualacol, is a member of the class of compounds known as methoxyphenols. Methoxyphenols are compounds containing a methoxy group attached to the benzene ring of a phenol moiety (e)-isoeugenol is slightly soluble (in water) and a very weakly acidic compound (based on its pKa). (e)-isoeugenol is a sweet, carnation, and clove tasting compound and can be found in a number of food items such as corn salad, coconut, flaxseed, and winter squash, which makes (e)-isoeugenol a potential biomarker for the consumption of these food products (e)-isoeugenol can be found primarily in saliva (e)-isoeugenol exists in all eukaryotes, ranging from yeast to humans (e)-isoeugenol is a non-carcinogenic (not listed by IARC) potentially toxic compound. Isoeugenol is an essential oil constituent of nutmeg, clove, and cinnamon. Isoeugenol inhibits growth of Escherichia coli and Listeria innocua with MICs of 0.6 mg/mL and 1 mg/mL, respectively[1]. Isoeugenol is an essential oil constituent of nutmeg, clove, and cinnamon. Isoeugenol inhibits growth of Escherichia coli and Listeria innocua with MICs of 0.6 mg/mL and 1 mg/mL, respectively[1].
5-(12-Heptadecenyl)-1,3-benzenediol
5-(12-Heptadecenyl)-1,3-benzenediol is found in fruits. 5-(12-Heptadecenyl)-1,3-benzenediol is a constituent of peel of mango fruit (Mangifera indica). Constituent of peel of mango fruit (Mangifera indica). 5-(12-Heptadecenyl)-1,3-benzenediol is found in mango and fruits.
Cinnamyl acetate
Constituent of Cassia and basil oilsand is also present in guava fruit and peel, starfruit, melon and strawberry jam. Flavouring ingredient. Cinnamyl acetate is found in many foods, some of which are chinese cinnamon, fruits, sweet bay, and ceylon cinnamon. Cinnamyl acetate is found in ceylan cinnamon. Cinnamyl acetate is a constituent of Cassia and basil oils. Also present in guava fruit and peel, starfruit, melon and strawberry jam. Cinnamyl acetate is a flavouring ingredient Cinnamyl acetate has a wide application in the flavor and fragrance industry[1]. Cinnamyl acetate is a new broad spectrum antibacterial agent[2]. Cinnamyl acetate has a wide application in the flavor and fragrance industry[1]. Cinnamyl acetate is a new broad spectrum antibacterial agent[2].
Dopamine 3-O-sulfate
Dopamine 3-O-sulfate is a sulfonated form of dopamine. In human blood circulation endogenous dopamine exists predominantly in the sulfated form and dopamine sulfate accounts for more than 90\\% of all dopamine. Dopamine-3-O-sulfate predominates in human plasma, with concentrations about 10-fold higher than those of the regioisomer dopamine-4-O-sulfate. Sulfonation is the most important metabolic pathway that interferes with the binding of dopamine to its receptors. The origins of this preponderance for Dopamine-3-O-sulfate have not been determined, although there has been speculation about the contribution of the specificity of transport proteins and/or arylsulfatases. It has also been proposed to depend on the regiospecificity of the metabolizing enzyme(s) for the 3-hydroxy group of dopamine. It is believed that the vast majority of circulating dopamine sulfate originates in the upper gastrointestinal tract, and indeed that is the main site of expression of the enzyme responsible for its formation. Aryl sulfotransferase (SULT1A3, EC 2.8.2.1) is an enzyme that catalyzes the sulfonation of many endogenous and exogenous phenols and catechols; the most important endogenous substrate is dopamine. SULT1A3 strongly favors the 3-hydroxy group of dopamine over the 4-hydroxy group and may indeed be primarily responsible for the difference between the circulating levels of dopamine sulfates in human blood. (PMID: 17548063) [HMDB] Dopamine 3-O-sulfate is a sulfonated form of dopamine. In human blood circulation endogenous dopamine exists predominantly in the sulfated form and dopamine sulfate accounts for more than 90\\% of all dopamine. Dopamine-3-O-sulfate predominates in human plasma, with concentrations about 10-fold higher than those of the regioisomer dopamine-4-O-sulfate. Sulfonation is the most important metabolic pathway that interferes with the binding of dopamine to its receptors. The origins of this preponderance for Dopamine-3-O-sulfate have not been determined, although there has been speculation about the contribution of the specificity of transport proteins and/or arylsulfatases. It has also been proposed to depend on the regiospecificity of the metabolizing enzyme(s) for the 3-hydroxy group of dopamine. It is believed that the vast majority of circulating dopamine sulfate originates in the upper gastrointestinal tract, and indeed that is the main site of expression of the enzyme responsible for its formation. Aryl sulfotransferase (SULT1A3, EC 2.8.2.1) is an enzyme that catalyzes the sulfonation of many endogenous and exogenous phenols and catechols; the most important endogenous substrate is dopamine. SULT1A3 strongly favors the 3-hydroxy group of dopamine over the 4-hydroxy group and may indeed be primarily responsible for the difference between the circulating levels of dopamine sulfates in human blood. (PMID: 17548063).
Dopamine 4-sulfate
Dopamine 4-sulfate is one of the metabolic products of the endogenous catecholamine dopamine which have also been implicated as intermediate in noradrenaline biosynthesis. In human blood circulation endogenous dopamine exists predominantly in the sulfated form and dopamine sulfate accounts for more than 90\\% of all dopamine. Sulfonation is the most important metabolic pathway that interferes with the binding of dopamine to its receptors. Dopamine-4-O-sulfate has concentrations about a 10th of those of the regioisomer dopamine-3-O-sulfate. It is believed that the vast majority of circulating dopamine sulfate originates in the upper gastrointestinal tract, and indeed that is the main site of expression of the enzyme responsible for its formation. Aryl sulfotransferase (SULT1A3, EC 2.8.2.1) is an enzyme that catalyzes the sulfonation of many endogenous and exogenous phenols and catechols; the most important endogenous substrate is dopamine. SULT1A3 strongly favors the 3-hydroxy group of dopamine over the 4-hydroxy group and may indeed be primarily responsible for the difference between the circulating levels of dopamine sulfates in human blood. (PMID: 17548063) [HMDB] Dopamine 4-sulfate is one of the metabolic products of the endogenous catecholamine dopamine which have also been implicated as intermediate in noradrenaline biosynthesis. In human blood circulation endogenous dopamine exists predominantly in the sulfated form and dopamine sulfate accounts for more than 90\\% of all dopamine. Sulfonation is the most important metabolic pathway that interferes with the binding of dopamine to its receptors. Dopamine-4-O-sulfate has concentrations about a 10th of those of the regioisomer dopamine-3-O-sulfate. It is believed that the vast majority of circulating dopamine sulfate originates in the upper gastrointestinal tract, and indeed that is the main site of expression of the enzyme responsible for its formation. Aryl sulfotransferase (SULT1A3, EC 2.8.2.1) is an enzyme that catalyzes the sulfonation of many endogenous and exogenous phenols and catechols; the most important endogenous substrate is dopamine. SULT1A3 strongly favors the 3-hydroxy group of dopamine over the 4-hydroxy group and may indeed be primarily responsible for the difference between the circulating levels of dopamine sulfates in human blood. (PMID: 17548063).
alpha-Methylstyrene
alpha-Methylstyrene belongs to the family of Phenylpropenes. These are compounds containing a phenylpropene moeity, which consists of a propene substituent bound to a phenyl group.
Isopropylbenzene
Isopropylbenzene, also known as 2-phenylpropane or benzene, isopropyl, belongs to the class of organic compounds known as cumenes. These are aromatic compounds containing a prop-2-ylbenzene moiety. Isopropylbenzene is found, on average, in the highest concentration within ceylon cinnamons and gingers. Isopropylbenzene has also been detected, but not quantified, in several different foods, such as celery stalks, cumins , herbs and spices, and sweet cherries. Isopropylbenzene is formally rated as a possible carcinogen (by IARC 2B) and is also a potentially toxic compound. Isopropylbenzene is a component of petroleum destillates. Petroleum distillate poisoning may cause nausea, vomiting, cough, pulmonary irritation progressing to pulmonary edema, bloody sputum, and bronchial pneumonia. Petroleum distillates are also irritating to the skin. Petroleum distillates are aspiration hazards and may cause pulmonary damage, central nervous system depression, and cardiac effects such as cardiac arrhythmias. They may also affect the blood, immune system, liver, and kidney. At high amounts, central nervous system depression may also occur, with symptoms such as weakness, dizziness, slow and shallow respiration, unconsciousness, and convulsions. Gastric lavage, emesis, and the administration of activated charcoal should be avoided, as vomiting increases the risk of aspiration. Treatment is mainly symptomatic and supportive. Volatile hydrocarbons are absorbed mainly through the lungs, and may also enter the body after ingestion via aspiration. Trace constituent of ginger oil (Zingiber officinale)
Chavicol
Chavicol is found in allspice. Chavicol is found in many essential oils, e.g. anise and Gardenia. Chavicol is used in perfumery and flavours. Found in many essential oils, e.g. anise and Gardenia. It is used in perfumery and flavours.
4-hydroxymandelic acid
p-Hydroxymandelic acid is an acidic metabolite of p-octopamine and p-synephrine (p-phenylephrine). It is also a naturally occurring metabolite of tyramine. A specific enantiomer of p-hydroxymandelic aicd ((R)-(-)-p-hydroxymandelic -- also called pisolithin B) has been shown to exhibit antifungal properties. An acidic metabolite of p-octopamine and p-synephrine (p-phenylephrine). It is also a naturally occurring metabolite of tyramine. A specific enantiomer of p-hydroxymandelic aicd ((R)-(-)-p-hydroxymandelic -- also called pisolithin B) has been shown to exhibit antifungal properties. [HMDB] D000890 - Anti-Infective Agents > D000892 - Anti-Infective Agents, Urinary > D008333 - Mandelic Acids p-Hydroxymandelic acid is a valuable aromatic fine chemical and widely used for production of pharmaceuticals and food additives.
3,4,5-Trimethoxycinnamic acid
3, 4, 5-trimethoxycinnamic acid is a methoxycinnamic acid with three methoxy substituents at the 3-, 4- and 5-positions. It has a role as an allergen. It is a conjugate acid of a 3,4,5-trimethoxycinnamate. 3, 4, 5-Trimethoxycinnamic acid is an organic acid found in normal human urine (PMID:6992730, 6511847). Trimethoxycinnamate is a natural aromatic ester from Piper longum that inhibits expression of cell adhesion molecules on endothelial cells (TNF- -induced expression of intercellular adhesion molecule-1 (ICAM-1) and E-Selectin and vascular adhesion molecules-1 (VCAM-1)), without being toxic to endothelial cells. (PMID:16313198). 3,4,5-trimethoxycinnamic acid is a methoxycinnamic acid with three methoxy substituents at the 3-, 4- and 5-positions. It has a role as an allergen. It is a conjugate acid of a 3,4,5-trimethoxycinnamate. 3,4,5-Trimethoxycinnamic acid is a natural product found in Piper tuberculatum, Polygala tenuifolia, and Piper swartzianum with data available. 3,4,5-Trimethoxycinnamic acid is an organic acid found in normal human urine. (PMID: 6992730, 6511847) (E)-3,4,5-Trimethoxycinnamic acid (TMCA) is a cinnamic acid substituted by multi-methoxy groups. (E)-3,4,5-Trimethoxycinnamic acid is an orally active and potent GABAA/BZ receptor agonist. (E)-3,4,5-Trimethoxycinnamic exhibits favourable binding affinity to 5-HT2C and 5-HT1A receptor, with IC50 values of 2.5 and 7.6 μM, respectively. (E)-3,4,5-Trimethoxycinnamic acid shows anticonvulsant and sedative activity. (E)-3,4,5-Trimethoxycinnamic acid can be used for the research of insomnia, headache and epilepsy[1][2][3]. (E)-3,4,5-Trimethoxycinnamic acid (TMCA) is a cinnamic acid substituted by multi-methoxy groups. (E)-3,4,5-Trimethoxycinnamic acid is an orally active and potent GABAA/BZ receptor agonist. (E)-3,4,5-Trimethoxycinnamic exhibits favourable binding affinity to 5-HT2C and 5-HT1A receptor, with IC50 values of 2.5 and 7.6 μM, respectively. (E)-3,4,5-Trimethoxycinnamic acid shows anticonvulsant and sedative activity. (E)-3,4,5-Trimethoxycinnamic acid can be used for the research of insomnia, headache and epilepsy[1][2][3]. 3,4,5-Trimethoxycinnamic acid is a phenylpropanoid isolated from the roots of Polygala tenuifolia WILLD, with anti-stress effect, prolonging the sleeping time in animals[1][2]. 3,4,5-Trimethoxycinnamic acid increases expression of GAD65 and γ-subunit of GABAA receptor, but shows no effect on the amounts of α-, β-subunits[2]. 3,4,5-Trimethoxycinnamic acid is a phenylpropanoid isolated from the roots of Polygala tenuifolia WILLD, with anti-stress effect, prolonging the sleeping time in animals[1][2]. 3,4,5-Trimethoxycinnamic acid increases expression of GAD65 and γ-subunit of GABAA receptor, but shows no effect on the amounts of α-, β-subunits[2]. 3,4,5-Trimethoxycinnamic acid is a phenylpropanoid isolated from the roots of Polygala tenuifolia WILLD, with anti-stress effect, prolonging the sleeping time in animals[1][2]. 3,4,5-Trimethoxycinnamic acid increases expression of GAD65 and γ-subunit of GABAA receptor, but shows no effect on the amounts of α-, β-subunits[2].
p-Cresol sulfate
p-Cresol sulfate is a microbial metabolite that is found in urine and likely derives from secondary metabolism of p-cresol. It appears to be elevated in the urine of individuals with progressive multiple sclerosis (PMID:10775436). p-Cresol sulfate is the major component of urinary MBPLM (myelin basic protein-like material). p-Cresol sulfate is a small protein-bound molecule that is poorly cleared with dialysis. It has been identified as a uremic toxin according to the European Uremic Toxin Working Group (PMID:22626821). Uremic toxins include other low-molecular-weight compounds such as indoxyl sulfate, 3-carboxy-4-methyl-5-propyl-2-furanpropionic acid, and asymmetric dimethylarginine (PMID:18941347). It has also been linked to cardiovascular disease and oxidative injury. Higher levels are associated with overgrowth of intestinal bacteria from Clostridia species, including C. difficile. p-Cresol is generated by the partial breakdown of tyrosine and phenylalanine by a wide range of intestinal obligate or facultative anaerobes, including the genera Bacteroides, Lactobacillus, Enterobacter, Bifidobacterium, and especially Clostridium (PMID:2394806). p-Cresol sulfate is a microbial metabolite that is found in urine and likely derives from secondary metabolism of p-cresol. It appears to be elevated in the urine of individuals with progressive multiple sclerosis (PMID: 10775436). p-Cresol sulfate is the major component of urinary MBPLM (myelin basic protein-like material). p-Cresol sulfate is a small protein-bound molecule that is poorly cleared with dialysis and is often considered to be a uremic toxin. Uremic toxins include low-molecular-weight compounds such as indoxyl sulfate, p-cresol sulfate, 3-carboxy-4-methyl-5-propyl-2-furanpropionic acid and asymmetric dimethylarginine (PMID: 18941347). It has been linked to cardiovascular disease and oxidative injury. [HMDB] p-Cresol sulfate. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=3233-58-7 (retrieved 2024-07-01) (CAS RN: 3233-58-7). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). p-Cresyl Sulfate, a major uremic toxin derived from the metabolites of tyrosine and phenylalanine through liver, existed in the blood of patients with chronic kidney disease (CKD).
Cardoltriene
Cardoltriene is found in nuts. Cardoltriene is a constituent of Anacardium occidentale (cashew). Constituent of Anacardium occidentale (cashew). Cardoltriene is found in nuts.
cis-3-Hexenyl phenylacetate
cis-3-Hexenyl phenylacetate is a flavouring ingredient. cis-3-Hexenyl phenylacetate is present in Mentha species. Flavouring ingredient. Present in Mentha subspecies
1-Phenyl-2,4-pentadiyn-1-one
1-Phenyl-2,4-pentadiyn-1-one is found in herbs and spices. 1-Phenyl-2,4-pentadiyn-1-one is isolated from Chrysanthemum coronarium (chop-suey greens). Isolated from Chrysanthemum coronarium (chop-suey greens). 1-Phenyl-2,4-pentadiyn-1-one is found in herbs and spices.
1,2-Dimethoxy-4-vinylbenzene
1,2-Dimethoxy-4-vinylbenzene is found in cereals and cereal products. 1,2-Dimethoxy-4-vinylbenzene is a flavouring ingredient. 1,2-Dimethoxy-4-vinylbenzene is a constituent of roasted coffee aroma and boiled buckwheat flour flavour. Flavouring ingredient. Constituent of roasted coffee aroma and boiled buckwheat flour flavour. 1,2-Dimethoxy-4-vinylbenzene is found in cereals and cereal products and coffee and coffee products.
3-Hydroxy-3-phenylpropanoic acid
3-Hydroxy-3-phenylpropanoic acid (CAS: 3480-87-3) belongs to the class of organic compounds known as phenylpropanoic acids. Phenylpropanoic acids are compounds with a structure containing a benzene ring conjugated to a propanoic acid. 3-Hydroxy-3-phenylpropanoic acid is an extremely weak basic (essentially neutral) compound (based on its pKa). BioTransformer predicts that 3-hydroxy-3-phenylpropanoic acid is a product of 3-hydroxy-3-(4-hydroxyphenyl)propanoic acid metabolism via a -4p-dehydroxylation-of-substituted-benzene reaction occurring in human gut microbiota and catalyzed by a dehydroxylase enzyme (PMID: 30612223).
2,6-Dimethoxy-4-vinylphenol
4-Vinylsyringol is a phenolic compound with potential antioxidant activity, which can be isolated from rapeseed oil[1].
6-Phenyl-3-hexen-2-one
6-Phenyl-3-hexen-2-one is found in beverages. 6-Phenyl-3-hexen-2-one is found in kava (Piper methysticum). FDA advises against use of kava in food due to potential risk of severe liver damage (2002
Cinnamylideneacetone
Cinnamylideneacetone is found in beverages. Cinnamylideneacetone is found in kava (Piper methysticum). FDA advises against use of kava in food due to potential risk of severe liver damage (2002
p-Mentha-1,3,5,8-tetraene
Occurs in Chamaecyparis, Citrus, Eucalyptus, Juniperus and Ribes subspecies oils and juices. Flavouring ingredient. p-Mentha-1,3,5,8-tetraene is found in many foods, some of which are lemon, parsley, spearmint, and roman camomile. p-Mentha-1,3,5,8-tetraene is found in citrus. p-Mentha-1,3,5,8-tetraene occurs in Chamaecyparis, Citrus, Eucalyptus, Juniperus and Ribes species oils and juices. p-Mentha-1,3,5,8-tetraene is a flavouring ingredien
Benzyl trans-2-methyl-2-butenoate
Benzyl trans-2-methyl-2-butenoate is used as a food additive [EAFUS] ("EAFUS: Everything Added to Food in the United States. [http://www.eafus.com/]")
3-(3-Hydroxyphenyl)-3-hydroxypropanoic acid
3-(3-Hydroxyphenyl)-3-hydroxypropanoic acid (HPHPA) is an organic acid detected in human urine. It is relatively abundant in adult human urine and it is normally relatively benign. It is thought that the presence of this acid is from nutritional sources (i.e. dietary phenylalanine or polyphenols). However, there has been a considerable degree of ambiguity in the origin and/or significance of this compound (PMID:11978597). Recently, it has been reported that HPHPA is actually an abnormal phenylalanine metabolite arising from bacterial metabolism in the gastrointestinal tract. Specifically, HPHPA appears to arise from the action of the anaerobic bacteria Clostridia sp. (PMID:20423563; PMID:24063620). Elevated levels of HPHPA have been reported in the urine of children with autism as well as in adult patients with schizophrenia. It has been proposed that HPHPA may be a bacterial metabolite of m-tyrosine, a tyrosine analog that causes symptoms of autism in experimental animals. Under certain conditions, HPHPA can act as a neurotoxin and a metabotoxin. A neurotoxin causes damage to nerve cells and nerve tissues. A metabotoxin is an endogenously produced metabolite that causes adverse health effects at chronically high levels. Chronically high levels of HPHPA are associated with autism and schizophrenia. The mechanism by which HPHPA exerts its toxic effects is not clear. It may function as a catecholamine analog and disrupt catecholamine signalling, especially in younger individuals. Alternately, HPHPA may function as an amino acid analog to tyrosine and phenylalanine. High plasma concentrations of phenylalanine (and possibly HPHPA) are known to influence the blood-brain barrier transport of large neutral amino acids. This altered transport is believed to interfere with the function of different cerebral enzyme systems in the developing brain. Studies have shown that higher levels of HPHPA are associated with overgrowth of Clostridia in the gut, including Clostridium difficile, Clostridium sporogenes, Clostridium botulinum, Clostridium calortolerans, Clostridium mangenoyi, Clostridium ghoni, Clostridium bifermentans, Clostridium sordelli. (PMID:20423563; PMID:24063620) (3-Hydroxyphenyl)hydracrylate (HPHPA) is an organic acid detected in human urine. It is thought that the presence of this acid is from nutritional sources (i.e. dietary phenylalanine). However, there has been a considerable degree of ambiguity in the origin and/or significance of this compound (PMID:11978597). Recently it has been reported that HPHPA is actually an abnormal phenylalanine metabolite arising from bacterial metabolism in the gastrointestinal tract. Specifically HPHPA appears to arise from the action of the anaerobic bacteria Clostrida species (PMID:20423563). Elevated levels of HPHPA have been reported in the urine of children with autism as well as in adult patients with schizophrenia. It has been proposed that HPHPA may be a bacterial metabolite of m-tyrosine, a tyrosine analog that causes symptoms of autism in experimental animals. [HMDB]
3-Methyl-4-phenyl-3-buten-2-one
(E)-3-Methyl-4-phenyl-3-buten-2-one is a flavouring ingredien It is used as a food additive .
2-Propenyl phenylacetate
2-Propenyl phenylacetate is a flavouring ingredient. Flavouring ingredient
Cinnamyl propionate
Cinnamyl propionate is used in fruit food flavouring. It is used in fruit food flavouring
4-Methylstyrene
P-methylstyrene, also known as 4-vinyltoluene or 1-ethenyl-4-methylbenzene, is a member of the class of compounds known as styrenes. Styrenes are organic compounds containing an ethenylbenzene moiety. P-methylstyrene can be found in guava, which makes P-methylstyrene a potential biomarker for the consumption of this food product. α-Methylstyrene (AMS) is a chemical intermediate used in the manufacture of plasticizers, resins and polymers. It is a co-product formed in a variation of the cumene process. The homopolymer obtained from this monomer, poly(α-methylstyrene), is unstable, being characterized by a low ceiling temperature .
[4]-Shogaol
[4]-shogaol is a member of the class of compounds known as shogaols. Shogaols are ginger derivatives containing a shogaol moiety, which consists of a benzene ring bearing a dec-4-en-3-one moiety, a methoxyphenyl group, a hydroxyl group and at positions 1, 3, and 4, respectively. [4]-shogaol is practically insoluble (in water) and a very weakly acidic compound (based on its pKa). [4]-shogaol can be found in ginger, which makes [4]-shogaol a potential biomarker for the consumption of this food product.
2,5-Dimethylstyrene
2,5-dimethylstyrene is a member of the class of compounds known as styrenes. Styrenes are organic compounds containing an ethenylbenzene moiety. 2,5-dimethylstyrene can be found in rosemary, which makes 2,5-dimethylstyrene a potential biomarker for the consumption of this food product.
Hydroxychavicol
4-Allylpyrocatechol is a natural product found in Dracaena draco, Piper retrofractum, and other organisms with data available. 4-Allylcatechol (4-Allylpyrocatechol, Hydroxychavicol) is an intermediate to synthetic safrole. 4-Allylcatechol (4-Allylpyrocatechol, Hydroxychavicol) is an intermediate to synthetic safrole.
Isoeugenol
A phenylpropanoid that is an isomer of eugenol in which the allyl substituent is replaced by a prop-1-enyl group. It is used in flavourings. Occurs in ylang-ylang and other essential oils. Isoeugenol is found in many foods, some of which are celeriac, spearmint, kale, and pepper (c. baccatum). Isoeugenol is an essential oil constituent of nutmeg, clove, and cinnamon. Isoeugenol inhibits growth of Escherichia coli and Listeria innocua with MICs of 0.6 mg/mL and 1 mg/mL, respectively[1]. Isoeugenol is an essential oil constituent of nutmeg, clove, and cinnamon. Isoeugenol inhibits growth of Escherichia coli and Listeria innocua with MICs of 0.6 mg/mL and 1 mg/mL, respectively[1].
Cinnamyl_acetate
Cinnamyl acetate is an acetate ester resulting from the formal condensation of cinnamyl alcohol with acetic acid. Found in cinnamon leaf oil. It has a role as a fragrance, a metabolite and an insecticide. It is functionally related to a cinnamyl alcohol. Cinnamyl acetate is a natural product found in Nicotiana bonariensis, Nicotiana langsdorffii, and other organisms with data available. See also: Chinese Cinnamon Leaf Oil (part of). Cinnamyl acetate has a wide application in the flavor and fragrance industry[1]. Cinnamyl acetate is a new broad spectrum antibacterial agent[2]. Cinnamyl acetate has a wide application in the flavor and fragrance industry[1]. Cinnamyl acetate is a new broad spectrum antibacterial agent[2].
C21H30O2_5-[(8Z,11Z)-8,11,14-Pentadecatrien-1-yl]-1,3-benzenediol
4-[(E)-3-hydroxy-8,10-dimethyl-2-(methylamino)dodec-6-enyl]phenol
2,5-Cyclohexadiene-1,4-dione,1,4-bis(O-benzoyloxime)
Benzocyclobutene
A carbobicyclic compound that is benzene fused to a cyclobutane ring.
Benzene,1-(1,1-dimethylethyl)-4-[(2-methyl-2-propen-1-yl)oxy]-
1-allyl-4-methylbenzene
4-Allyltoluene, an aromatic compound, can elicite antennal olfactory response of Mediterranean fruit fly measured by electroantennography (EAG)[1].
(2,6,6-Trimethylcyclohex-1-enylmethanesulfonyl)benzene
LS-2530
2-Methoxy-4-vinylphenol (2M4VP), a naturally Germination inhibitor, exerts potent anti-inflammatory effects[1][2]. 2-Methoxy-4-vinylphenol (2M4VP), a naturally Germination inhibitor, exerts potent anti-inflammatory effects[1][2].
AI3-01265
Cinnamyl acetate has a wide application in the flavor and fragrance industry[1]. Cinnamyl acetate is a new broad spectrum antibacterial agent[2]. Cinnamyl acetate has a wide application in the flavor and fragrance industry[1]. Cinnamyl acetate is a new broad spectrum antibacterial agent[2].
Cumyl hydroperoxide
A peroxol that is cumene in which the alpha-hydrogen is replaced by a hydroperoxy group. D009676 - Noxae > D016877 - Oxidants
2,6-Dimethoxy-4-vinylphenol
4-Vinylsyringol is a phenolic compound with potential antioxidant activity, which can be isolated from rapeseed oil[1].
β-methylamino L-alanine
beta-Methylamino-L-alanine belongs to the class of organic compounds known as alpha amino acids. These are amino acids in which the amino group is attached to the carbon atom immediately adjacent to the carboxylate group (alpha carbon). Based on a literature review very few articles have been published on beta-Methylamino-L-alanine.
2-bromo-N-{4-[(4-methylpyrimidin-2-yl)sulfamoyl]phenyl}benzamide
(0)
Pentacyclo[10.2.1.15,8.02,11.04,9]hexadeca-6,13-diene-3,10-dione
(0)
Tetracyclo[6.6.2.0(2,7).0(9,14)]hexadeca-2(7),3,5,9(14),10,12-hexaen-15-ylmethanamine
(0)
Tetracyclo[16.3.1.14,8.111,15]tetracosa-1(22),4,6,8(24),11,13,15(23),18,20-nonaene
(0)
Tricyclo[10.2.2.2(5,8)]octadeca-5,7,12,14,15,17-hexaen-6-ol
(0)
Borinic acid, diethyl-, 1-phenyl-2-butenyl ester
(0)
Propanoic acid, 3-[[3-(4-chlorophenyl)-3-hydroxy-1-thioxo-2-propenyl]thio]-, 1-methylethyl ester
(0)
Propanedinitrile, (1-methylethenyl)(phenylmethyl)-
(0)
Benzeneacetic acid, alpha-phenyl-, 2,2-diphenyl-1-(2-thioxo-1-imidazolidinyl)ethenyl ester
(0)
Benzenamine,n-[1-(dimethoxymethyl)-2,3-dimethylbutylidene]-
(0)
Benzenamine,n-(1,1-dimethyl-2-propenyl)-4-(1-methylethyl)-
(0)
Benzene, 1-[(4-chloro-2-butenyl)sulfonyl]-4-methyl-
(0)
Benzene, 1,2,3,4-tetramethyl-4-(1-methylethenyl)-
(0)
Benzene, (2-ethyl-4-methyl-1,3-pentadienyl)-, (E)-
(0)
Carbamic acid, (thiodiethylene)di-, dibenzyl ester
(0)
N-[2,2-Bis(4-chlorophenylthio)-1-cyanovinyl]-p-toluamide
(0)
9-Hydroxy-3-(methylphenylamino)-1-oxo-1H-phenalene-2-carbaldehyde
(0)
6-(Phenylcarbamoyl)cyclohex-3-ene-1-carboxylic acid
(0)
5-Benzocyclooctenol, 5,6,7,8-tetrahydro-8,8-dimethyl-
(0)
5-{[1,1,1,4,5,5,5-Heptafluoro-3-(1,1,1,2,3,3,3-heptafluoropropan-2-YL)-4-(trifluoromethyl)pent-2-EN-2-YL]oxy}benzene-1,3-diamine
(0)
5,8-Ethenobenzo[3,4]cyclobuta[1,2-d]pyridazine-6,7-dicarboxylic acid, 4,4b,5,8,8a,8b-hexahydro-1,4-diphenyl-, dimethyl ester
(0)
5,16[1',2']:8,13[1'',2'']-Dibenzenodibenzo[a,g]cyclododecene, 6,7,14,15-tetrahydro-
(0)
5,13:6,12-Dimethanodibenzo[a,f]cyclododecene, 5,6,7,12,13,14-hexahydro-
(0)
4-Methyl-1-(1-phenylvinyl)-5-(1-pyrrolidinyl)-4,5-dihydro-1H-1,2,3-triazole
(0)
3,7-Dithiabicyclo[7.3.1]trideca-1(13),9,11-triene
(0)
3,6,10,13-Tetrathiabicyclo[13.4.0]nonadeca-1(19),15,17-triene
(0)
2-Bromo-benzoic acid (3-phenyl-allylidene)-hydrazide
(0)
2-Penten-1-one, 1-(2-hydroxy-5-methylphenyl)-4-methyl-
(0)
2-Cyclopenten-1-one, 4-hydroxy-3-methyl-2-phenyl-
(0)
2-Azabicyclo[4.2.0]oct-3-ene-7,8-dicarboxylic acid, 4-cyano-2-(phenylmethyl)-, dimethyl ester
(0)
2-Propene(dithioic) acid, 3-hydroxy-3-(4-methylphenyl)-
(0)
2-Propene(dithioic) acid, 3-(4-chlorophenyl)-3-hydroxy-, propyl ester
(0)
2-[(4-Bromophenyl)diazenyl]-2-methylpropanedinitrile
(0)
2,6-Di-tert-butyl-4-(diphenylmethylene)-2,5-cyclohexadien-1-one
(0)
2,3-Pentadienoic acid, 2-methyl-4-phenyl-, ethyl ester
(0)
2-(4-Amino-3,5-dimethylphenyl)ethene-1,1,2-tricarbonitrile
(0)
2-(1-Methyl-3-phenyl-2-propenylidene)hydrazinecarboxamide
(0)
1-Phenyl-3-(4-phenylbut-3-en-2-ylideneamino)urea
(0)
1H-Indene, 2,3-dihydro-1,1-dimethyl-4-(3-methyl-3-butenyl)-
(0)
1,8-(Epoxymethano)-2,7-methanodibenzo[a,e]cyclobuta[c]cycloocten-13-one, 1,2,2a,7,8,12b-hexahydro-2-methoxy-
(0)
1,6,6-Trimethyl-4-phenyl-2-oxa-3-azabicyclo[3.1.0]hex-3-ene
(0)
1,4-Naphthalenediol, 6-ethenyl-5,6,7,8-tetrahydro-7-[1-(hydroxymethyl)ethenyl]-6-methyl-
(0)
1,1,1-Trifluoro-4-mercapto-4-(4-methylphenyl)-3-buten-2-one
(0)
Benzene, 1,1'-(4,4-dimethyl-1-butene-1,4-diyl)bis-
(0)
1-(2-Hydroxy-3-methoxy-6-methylphenyl)-2-propen-1-one
(0)
1-(1-Chloroprop-1-en-2-yl)-2-[(1-chloroprop-1-en-2-yl)oxy]benzene
(0)
[(1S,8R)-11-tricyclo[6.2.1.02,7]undeca-2,4,6-trienyl] acetate
(0)
(Z)-4-((3-fluorophenyl)amino)-4-oxobut-2-enoic acid
(0)
(E)-2-amino-3-{[(E)-(2-nitrophenyl)methylidene]amino}-2-butenedinitrile
(0)
(3E)-2-(morpholin-4-yl)-4-phenylbut-3-enenitrile
(0)
(2Z)-3-(dimethylamino)-1-(3-nitrophenyl)prop-2-en-1-one
(0)
(2E)-1-(4-chlorophenyl)-3-(dimethylamino)prop-2-en-1-one
(0)
