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Cytochrome P450 2E1 (abbreviated CYP2E1, EC 1.14.13.n7) is a member of the cytochrome P450 mixed-function oxidase system, which is involved in the metabolism of xenobiotics in the body. This class of enzymes is divided up into a number of subcategories, including CYP1, CYP2, and CYP3, which as a group are largely responsible for the breakdown ...
While playing only a minor role in ethanol metabolism in average individuals, MEOS activity increases after chronic alcohol consumption. The MEOS pathway requires the CYP2E1 enzyme, part of the cytochrome P450 family of enzymes, to convert ethanol to acetaldehyde. Ethanol’s affinity for CYP2E1 is lower than its affinity for alcohol dehydrogenase.
For example, CYP2E1 is the gene that encodes the enzyme CYP2E1—one of the enzymes involved in paracetamol (acetaminophen) metabolism. The CYP nomenclature is the official naming convention, although occasionally CYP450 or CYP 450 is used synonymously. These names should never be used as according to the nomenclature convention (as they denote ...
In adults, the primary metabolic pathway for paracetamol is glucuronidation. [1] This yields a relatively non-toxic metabolite, which is excreted into bile and passed out of the body. A small amount of the drug is metabolized via the cytochrome P-450 pathway (to be specific, CYP3A4 and CYP2E1 ) into NAPQI, which is extremely toxic to liver ...
The first four seem to be involved in the hydroxylation of toluene to benzyl alcohol. CYP2E1 seems to be the primary enzyme in the hydroxylation of toluene, accounting for roughly 44% of toluene metabolism; [1] however, there is a great deal of ethnic variability, in the Finnish population for example the primary enzyme is CYP2B6.
Repeated or chronic use of ethanol increases the activity of CYP2E1. [4] [6] The activity of ADH and CYP2E1 alone does not appear sufficient to fully explain the increase in ethanol metabolism rate. There may be one or more additional pathways that metabolize as much as 25 to 35% of ethanol at typical concentrations. [3]
Enzyme Inhibitors Inducers; CYP1A1: Certain foods (e.g., cumin, turmeric) Certain herbs/herbal teas (e.g., peppermint, German chamomile, dandelion, Kava) Amiodarone ...
The latter hydroxy metabolites can be converted by an unidentified cytochrome P450 enzyme to maresin like-1 (Mar-L1) and Mar-L2 by omega oxidation; alternatively, DHA may be first metabolized to 22-hydroxy-DHA by CYP1A2, CYP2C8, CYP2C9, CYP2D6, CYP2E1, or CYP3A4 and then metabolized through the cited epoxide-forming pathways to Mar-L1 and MaR ...