Classification Term: 3492
Phenylacetaldehydes (ontology term: CHEMONTID:0001257)
Compounds containing a phenylacetaldehyde moiety, which consists of a phenyl group substituted at the second position by an acetalydehyde." []
found 19 associated metabolites at sub_class metabolite taxonomy ontology rank level.
Ancestor: Benzene and substituted derivatives
Child Taxonomies: There is no child term of current ontology term.
Phenylacetaldehyde
Phenylacetaldehyde is one important oxidation-related aldehyde. Exposure to styrene gives phenylacetaldehyde as a secondary metabolite. Styrene has been implicated as reproductive toxicant, neurotoxicant, or carcinogen in vivo or in vitro. Phenylacetaldehyde could be formed by diverse thermal reactions during the cooking process together with C8 compounds is identified as a major aroma- active compound in cooked pine mushroom. Phenylacetaldehyde is readily oxidized to phenylacetic acid. Therefore will eventually be hydrolyzed and oxidized to yield phenylacetic acid that will be excreted primarily in the urine in conjugated form. (PMID: 16910727, 7818768, 15606130). Found in some essential oils, e.g. Citrus subspecies, Tagetes minuta (Mexican marigold) and in the mushroom Phallus impudicus (common stinkhorn). Flavouring ingredient COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS
4-Hydroxyphenylacetaldehyde
4-Hydroxyphenylacetaldehyde is a byproduct of tyrosine metabolism. COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS
3,4-Dihydroxyphenylacetaldehyde
3,4-Dihydroxyphenylacetaldehyde (DOPAL) is a metabolite of the monoamine oxidase-catalyzed oxidative deamination of dopamine. Aldehydes are highly reactive molecules formed during the biotransformation of numerous endogenous and exogenous compounds, including biogenic amines. DOPAL generates a free radical and activates mitochondrial permeability transition, a mechanism implicated in neuron death. There is an increasing body of evidence suggesting that these compounds are neurotoxic, and it has been recently hypothesized that neurodegenerative disorders may be associated with increased levels of this biogenic aldehyde. It is possible to speculate that reduced detoxification of 3,4- dihydroxymandelaldehyde from impaired or deficient aldehyde dehydrogenase function may be a contributing factor in the suggested neurotoxicity of these compounds. Aldehyde dehydrogenases are a group of NAD(P)+ -dependent enzymes that catalyze the oxidation of aldehydes, such as those derived from catecholamines, to their corresponding carboxylic acids. To date, 19 aldehyde dehydrogenase genes have been identified in the human genome. Mutations in these genes and subsequent inborn errors in aldehyde metabolism are the molecular basis of several diseases. Several pharmaceutical agents and environmental toxins (i.e.: 4-hydroxy-2-nonenal) are also known to disrupt or inhibit aldehyde dehydrogenase function. (PMID: 17379813, 14697885, 11164826, 16956664 [HMDB]. 3,4-Dihydroxyphenylacetaldehyde is found in many foods, some of which are asian pear, pak choy, papaya, and abiyuch. 3,4-Dihydroxyphenylacetaldehyde (DOPAL) is a metabolite of the monoamine oxidase-catalyzed oxidative deamination of dopamine. Aldehydes are highly reactive molecules formed during the biotransformation of numerous endogenous and exogenous compounds, including biogenic amines. DOPAL generates a free radical and activates mitochondrial permeability transition, a mechanism implicated in neuron death. There is an increasing body of evidence suggesting that these compounds are neurotoxic, and it has been recently hypothesized that neurodegenerative disorders may be associated with increased levels of this biogenic aldehyde. It is possible to speculate that reduced detoxification of 3,4- dihydroxymandelaldehyde from impaired or deficient aldehyde dehydrogenase function may be a contributing factor in the suggested neurotoxicity of these compounds. Aldehyde dehydrogenases are a group of NAD(P)+ -dependent enzymes that catalyze the oxidation of aldehydes, such as those derived from catecholamines, to their corresponding carboxylic acids. To date, 19 aldehyde dehydrogenase genes have been identified in the human genome. Mutations in these genes and subsequent inborn errors in aldehyde metabolism are the molecular basis of several diseases. Several pharmaceutical agents and environmental toxins (i.e.: 4-hydroxy-2-nonenal) are also known to disrupt or inhibit aldehyde dehydrogenase function. (PMID: 17379813, 14697885, 11164826, 16956664. COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS
3,4-Dihydroxymandelaldehyde
3,4-Dihydroxymandelaldehyde is the monoamine oxidase (MAO) aldehyde metabolite of both norepinephrine and epinephrine. 3,4- dihydroxymandelaldehyde generates a free radical and activates mitochondrial permeability transition, a mechanism implicated in neuron death. There is an increasing body of evidence suggesting that these compounds are neurotoxic, and it has been recently hypothesized that neurodegenerative disorders may be associated with increased levels of this biogenic aldehyde. It is possible to speculate that reduced detoxification of 3,4- dihydroxymandelaldehyde from impaired or deficient aldehyde dehydrogenase function may be a contributing factor in the suggested neurotoxicity of these compounds. Aldehyde dehydrogenases are a group of NAD(P)+ -dependent enzymes that catalyze the oxidation of aldehydes, such as those derived from catecholamines, to their corresponding carboxylic acids. To date, 19 aldehyde dehydrogenase genes have been identified in the human genome. Mutations in these genes and subsequent inborn errors in aldehyde metabolism are the molecular basis of several diseases. Several pharmaceutical agents and environmental toxins are also known to disrupt or inhibit aldehyde dehydrogenase function. (PMID: 17379813, 14697885, 11164826). 3,4-dihydroxymandelaldehyde, also known as alpha,3,4-trihydroxybenzeneacetaldehyde or dhmal, is a member of the class of compounds known as phenylacetaldehydes. Phenylacetaldehydes are compounds containing a phenylacetaldehyde moiety, which consists of a phenyl group substituted at the second position by an acetalydehyde. 3,4-dihydroxymandelaldehyde is soluble (in water) and a very weakly acidic compound (based on its pKa). 3,4-dihydroxymandelaldehyde can be found in a number of food items such as canola, lentils, grass pea, and moth bean, which makes 3,4-dihydroxymandelaldehyde a potential biomarker for the consumption of these food products. In humans, 3,4-dihydroxymandelaldehyde is involved in a couple of metabolic pathways, which include disulfiram action pathway and tyrosine metabolism. 3,4-dihydroxymandelaldehyde is also involved in several metabolic disorders, some of which include dopamine beta-hydroxylase deficiency, alkaptonuria, hawkinsinuria, and tyrosinemia, transient, of the newborn. COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS
Atropaldehyde
Atropaldehyde is a metabolite of felbamate. Felbamate (marketed under the brand name Felbatol by MedPointe) is an anti-epileptic drug used in the treatment of epilepsy. It is used to treat partial seizures (with and without generalization) in adults and partial and generalized seizures associated with Lennox-Gastaut syndrome in children. However, an increased risk of potentially fatal aplastic anemia and/or liver failure limit the drugs usage to severe refractory epilepsy. (Wikipedia)
3-Carbamoyl-2-phenylpropionaldehyde
3-Carbamoyl-2-phenylpropionaldehyde is a metabolite of felbamate. Felbamate (marketed under the brand name Felbatol by MedPointe) is an anti-epileptic drug used in the treatment of epilepsy. It is used to treat partial seizures (with and without generalization) in adults and partial and generalized seizures associated with Lennox-Gastaut syndrome in children. However, an increased risk of potentially fatal aplastic anemia and/or liver failure limit the drugs usage to severe refractory epilepsy. (Wikipedia)
2-Phenyl-2-butenal
(E)-2-Phenyl-2-butenal is found in tea. (E)-2-Phenyl-2-butenal is a flavouring ingredient. (E)-2-Phenyl-2-butenal is a odorous component of black tea Glutamic acid (Glu), also referred to as glutamate (the anion), is one of the 20 proteinogenic amino acids. It is not among the essential amino acids. Glutamate is a key molecule in cellular metabolism. In humans, dietary proteins are broken down by digestion into amino acids, which serves as metabolic fuel or other functional roles in the body. Glutamate is the most abundant fast excitatory neurotransmitter in the mammalian nervous system. At chemical synapses, glutamate is stored in vesicles. Nerve impulses trigger release of glutamate from the pre-synaptic cell. In the opposing post-synaptic cell, glutamate receptors, such as the NMDA receptor, bind glutamate and are activated. Because of its role in synaptic plasticity, it is believed that glutamic acid is involved in cognitive functions like learning and memory in the brain. Glutamate transporters are found in neuronal and glial membranes. They rapidly remove glutamate from the extracellular space. In brain injury or disease, they can work in reverse and excess glutamate can accumulate outside cells. This process causes calcium ions to enter cells via NMDA receptor channels, leading to neuronal damage and eventual cell death, and is called excitotoxicity. The mechanisms of cell death include: * Damage to mitochondria from excessively high intracellular Ca2+. * Glu/Ca2+-mediated promotion of transcription factors for pro-apoptotic genes, or downregulation of transcription factors for anti-apoptotic genes. Excitotoxicity due to glutamate occurs as part of the ischemic cascade and is associated with stroke and diseases like amyotrophic lateral sclerosis, lathyrism, and Alzheimers disease. glutamic acid has been implicated in epileptic seizures. Microinjection of glutamic acid into neurons produces spontaneous depolarization around one second apart, and this firing pattern is similar to what is known as paroxysmal depolarizing shift in epileptic attacks. This change in the resting membrane potential at seizure foci could cause spontaneous opening of voltage activated calcium channels, leading to glutamic acid release and further depolarization. (http://en.wikipedia.org/wiki/Glutamic_acid); In addition to being one of the building blocks in protein synthesis, it is the most widespread neurotransmitter in brain function, as an excitatory neurotransmitter and as a precursor for the synthesis of GABA in GABAergic neurons. It is used as a food additive .
Phenylglyoxal
Phenylglyoxal belongs to the class of organic compounds known as phenylacetaldehydes. These are compounds containing a phenylacetaldehyde moiety, which consists of a phenyl group substituted at the second position by an acetalydehyde. D019995 - Laboratory Chemicals > D007202 - Indicators and Reagents D004791 - Enzyme Inhibitors
5-Methyl-2-phenyl-2-hexenal
5-Methyl-2-phenyl-2-hexenal is found in cocoa and cocoa products. 5-Methyl-2-phenyl-2-hexenal is a constituent of various plant species and cooked foods e.g. cocoa beans and roasted peanut. 5-Methyl-2-phenyl-2-hexenal is a flavouring ingredient Constituent of various plant subspecies and cooked foods e.g. cocoa beans and roasted peanut. Flavouring ingredient. 5-Methyl-2-phenyl-2-hexenal is found in cocoa and cocoa products and nuts.
(4-Methylphenyl)acetaldehyde
(4-Methylphenyl)acetaldehyde is a flavouring ingredient with bitter almond odour and flavou Flavouring ingredient with bitter almond odour and flavour
2-Phenylpropanal
(±)-2-Phenylpropanal is found in mushrooms. (±)-2-Phenylpropanal is a flavour ingredien Found in various mushrooms
3-Methyl-2-phenylbutanal
(±)-3-Methyl-2-phenylbutanal is a flavouring ingredient. It is used as a food additive .
2-Phenyl-4-pentenal
(±)-2-Phenyl-4-pentenal is a flavouring ingredient. It is used as a food additive
3-(2-Furanyl)-2-phenyl-2-propenal
3-(2-Furanyl)-2-phenyl-2-propenal is a flavourant for tobacco and food product Flavourant for tobacco and food products
4-Methyl-2-phenyl-2-pentenal
Present in aroma volatiles of roast filbert, tea, peppermint and krill seasoning. Ingredient of cocoa and chocolate-type flavours. 4-Methyl-2-phenyl-2-pentenal is found in many foods, some of which are herbs and spices, tea, crustaceans, and potato. 4-Methyl-2-phenyl-2-pentenal is found in crustaceans. 4-Methyl-2-phenyl-2-pentenal is present in aroma volatiles of roast filbert, tea, peppermint and krill seasoning. Ingredient of cocoa and chocolate-type flavours.
trans-[6]-Shogaol
Trans-[6]-shogaol is a member of the class of compounds known as phenylacetaldehydes. Phenylacetaldehydes are compounds containing a phenylacetaldehyde moiety, which consists of a phenyl group substituted at the second position by an acetalydehyde. Trans-[6]-shogaol is slightly soluble (in water) and an extremely weak acidic compound (based on its pKa). Trans-[6]-shogaol can be found in ginger, which makes trans-[6]-shogaol a potential biomarker for the consumption of this food product.