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MAO-B inhibition reduces the breakdown mainly of dopamine and phenethylamine, so there are no associated dietary restrictions. MAO-B would also metabolize tyramine, as the only differences between dopamine, phenethylamine, and tyramine are two phenylhydroxyl groups on carbons 3 and 4. The 4-OH would not be a steric hindrance to MAO-B on ...
Monoamine oxidase A, also known as MAO-A, is an enzyme (E.C. 1.4.3.4) that in humans is encoded by the MAOA gene. [ 5 ] [ 6 ] This gene is one of two neighboring gene family members that encode mitochondrial enzymes which catalyze the oxidative deamination of amines , such as norepinephrine , serotonin and tyramine .
Monoamine oxidases (MAO) (EC 1.4.3.4) are a family of enzymes that catalyze the oxidation of monoamines, employing oxygen to clip off their amine group. [1] [2] They are found bound to the outer membrane of mitochondria in most cell types of the body. The first such enzyme was discovered in 1928 by Mary Bernheim in the liver and was named ...
2-NAP is a potent monoamine oxidase inhibitor (MAOI), specifically of monoamine oxidase A (MAO-A) (IC 50 Tooltip half-maximal effective concentration = 420 nM). [8] [3] 1-NAP is an MAOI as well, also of MAO-A (IC 50 = 5,630 nM), but was about 13-fold less potent than 2-NAP. [3] Neither 2-NAP or 1-NAP inhibited monoamine oxidase B (MAO-B) (IC 50 ...
In both mice and humans, a mutation was located on the eighth exon of the MAO-A gene, which created a dysfunctional MAO-A gene. [6] [7] The regular function of MAO-A, breaking down monoamines, is disrupted, and monoamines build up within the brain. Mice that lacked a functional MAO-A gene displayed higher levels of aggression, in comparison to ...
It is a dual or non-selective irreversible monoamine oxidase A (MAO-A) and monoamine oxidase B (MAO-B) inhibitor, with preference for inhibition of MAO-B over MAO-A. [3] [4] It is less selective for MAO-B inhibition than AGN-1135 (racemic rasagiline) or rasagiline. [3]
Tryptolines are competitive selective inhibitors of the enzyme monoamine oxidase type A (). 5-Hydroxytryptoline and 5-methoxytryptoline (pinoline) are the most active monoamine oxidase inhibitors (MAOIs) with IC 50 s of 0.5 μM and 1.5 μM respectively.
Tranylcypromine, sold under the brand name Parnate among others, [1] is a monoamine oxidase inhibitor (MAOI). [4] [7] More specifically, tranylcypromine acts as nonselective and irreversible inhibitor of the enzyme monoamine oxidase (MAO).