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In the field of neurochemistry, 5-HT1 receptors are a subfamily of 5-HT receptors which bind the neurotransmitter and peripheral signal mediator serotonin, also known as 5-hydroxytryptamine (5-HT).
Mode of action[edit | edit source]
Subtypes[edit | edit source]
Although working basically through the same mechanism, there are several 5-HT1 receptor subtypes (denoted A-F), each encoded by a separate gene. Furthermore each subtype has a somewhat different tissue distribution and binding preference for synthetic 5-HT1 agonist and antagonist ligands.
5-HT1A[edit | edit source]
- Main article: 5-HT1A receptor
5-HT1A acts on the CNS, where it induces neuronal inhibition and controls behaviour, such as sleep, feeding, thermoregulation, aggression, anxiety.
5-HT1B[edit | edit source]
- Main article: 5-HT1B receptor
5-HT1D[edit | edit source]
- Main article: 5-HT1D receptor
5-HT1D acts on the CNS, and affects locomotion and anxiety. It also induces vascular vasoconstriction in the brain. Ergotamine works primarily through the 5-HT1B receptor, since the effect through the 5-HT1D receptor is contrary to the mode of action of ergotamine, i.e. vasoconstriction.
5-HT1E[edit | edit source]
- Main article: 5-HT1E receptor
5-HT1F[edit | edit source]
- Main article: 5-HT1F receptor
References[edit | edit source]
- Hoyer D, Clarke DE, Fozard JR, Hartig PR, Martin GR, Mylecharane EJ, Saxena PR, Humphrey PP (1994). International Union of Pharmacology classification of receptors for 5-hydroxytryptamine (Serotonin). Pharmacol. Rev. 46 (2): 157–203.
- Glennon RA, Hong SS, Dukat M, Teitler M, Davis K (1994). 5-(Nonyloxy)tryptamine: a novel high-affinity 5-HT1D beta serotonin receptor agonist. J. Med. Chem. 37 (18): 2828–30.
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