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α-Methyl-5-hydroxytryptophan (α-Me-5-HTP) is a synthetic tryptamine derivative, an artificial amino acid, and a prodrug of α-methylserotonin. [ 1 ] [ 2 ] It is the α- methylated derivative of 5-hydroxytryptophan (5-HTP), while αMS is the α-methylated analogue of serotonin .
5-HTP is rapidly absorbed with a t max of ≈1.5 h, and rapidly eliminated with a half-life of ≈1.5 – 2 h. Co-administration of a decarboxylase inhibitor (e.g., carbidopa, benserazide ) doubles the half-life of 5-HTP to ≈ 3 – 4 h , [ 37 ] [ 34 ] and enhances exposure several-fold, depending on the dosing regimen.
5-HTP is produced from the amino acid tryptophan through the action of the enzyme tryptophan hydroxylase. Tryptophan hydroxylase is one of the biopterin-dependent aromatic amino acid hydroxylases. Production of 5-HTP is the rate-limiting step in 5-HT (serotonin) synthesis. 5-HTP is normally rapidly converted to 5-HT by amino acid decarboxylase. [1]
Carbidopa/oxitriptan (developmental code name EVX-101), or carbidopa/5-hydroxytryptophan (carbidopa/5-HTP), is a combination of 5-hydroxytryptophan (oxitriptan), a serotonin precursor, and carbidopa, a peripherally selective aromatic L-amino acid decarboxylase inhibitor, which is under development as an antidepressant for the treatment of depressive disorders. [1]
5-Methoxytryptamine (5-MT, 5-MeO-T, or 5-OMe-T), also known as serotonin methyl ether or O-methylserotonin and as mexamine, is a tryptamine derivative closely related to the neurotransmitters serotonin and melatonin. [3] It has been shown to occur naturally in the body in low levels, especially in the pineal gland.
Later it was shown that the 5-HT 2 was very close to 5-HT 1C and thus were grouped together, renaming the 5-HT 2 into 5-HT 2A. Thus, the 5-HT 2 receptor family is composed of three separate molecular entities: the 5-HT 2A (formerly known as 5-HT 2 or D), the 5-HT 2B (formerly known as 5-HT 2F ) and the 5-HT 2C (formerly known as 5-HT 1C ...
15550 Ensembl ENSG00000178394 ENSMUSG00000021721 UniProt P08908 Q64264 RefSeq (mRNA) NM_000524 NM_008308 RefSeq (protein) NP_000515 NP_032334 Location (UCSC) Chr 5: 63.96 – 63.96 Mb Chr 13: 105.58 – 105.58 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse The serotonin 1A receptor (or 5-HT 1A receptor) is a subtype of serotonin receptors, or 5-HT receptors, that binds serotonin ...
2-Methyl-5-hydroxytryptamine (2-Methylserotonin, 2-Methyl-5-HT) is a tryptamine derivative closely related to the neurotransmitter serotonin which acts as a moderately selective full agonist at the 5-HT 3 receptor.