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Monoamine oxidase inhibitors (MAOIs) are a class of drugs that inhibit the activity of one or both monoamine oxidase enzymes: monoamine oxidase A (MAO-A) and monoamine oxidase B (MAO-B). They are best known as effective antidepressants , especially for treatment-resistant depression and atypical depression . [ 1 ]
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.
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 .
Brunner syndrome is caused by a monoamine oxidase A (MAOA) deficiency, which leads to an excess of monoamines in the brain, such as serotonin, dopamine, and norepinephrine (noradrenaline). 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.
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Although it has been estimated that a single 300 mg dose of moclobemide inhibits 80% of monoamine oxidase-A (MAO-A) and 20-30% of MAO-B, [100] studies evaluating brain occupancy of MAO-A enzymes have shown dosages of 600 mg to only inhibit 74% of MAO-A enzymes [101] and dosages in the 900–1200 mg range to inhibit slightly less MAO-A than ...
Harmaline and harmine fluorescence under ultraviolet light.These three extractions indicate that the middle one has a higher concentration of the two compounds. As mentioned above, some harmala alkaloids can be used as a monoamine oxidase inhibitor (MAOI) to facilitate the ingestion of dimethyltryptamine (DMT) and other tryptamines; while not generally used as a hallucinogen alone, there are ...
Reversible inhibitors of MAO-A (16 P) Pages in category "Monoamine oxidase inhibitors" The following 118 pages are in this category, out of 118 total.