Serotonin (5-HT) is a monoamine neurotransmitter that plays an important role as a modulator of anger, aggression, body temperature, mood, sleep, sexuality, appetite, metabolism, as well as stimulating vomiting. Several classes of drugs target the 5-HT system including some antidepressants, antipsychotics, anxiolytics, antiemetics and antimigraine drugs. The activity of 5-HT is modulated by 5-HT receptors, made up of seven families (5-HT1-7). All but 5-HT3 (ligand-gated ion channel) are GPCRs and these receptors bind different G proteins resulting in differing outcomes (Hoyer D et al, 1994; Kitson SL, 2007).
Kitson, SL
Martin, GR, Clarke, DE, Saxena, PR, Fozard, JR, Hoyer, D, Hartig, PR, Mylecharane, EJ, Humphrey, PP
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