Serotonin, serotonergic receptors, selective serotonin reuptake inhibitors and sexual behaviour

被引:98
作者
Olivier, B
van Oorschot, R
Waldinger, MD
机构
[1] Univ Utrecht, Fac Pharm, Rudolf Magnus Inst Neurosci, Dept Psychopharmacol, NL-3584 CA Utrecht, Netherlands
[2] Solvay Pharmaceut BV, CNS Res, Weesp, Netherlands
[3] Leyenburg Hosp, Dept Psychiat & Neurosexol, The Hague, Netherlands
关键词
serotonin; selective serotonin reuptake inhibitors; fluvoxamine; serotonin receptors; sexual function; pharmacology;
D O I
10.1097/00004850-199807006-00003
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
The serotonergic system in the brain modulates many types of behavioural and physiological processes,An example of this modulatory function is seen with the selective serotonin reuptake inhibitors (SSRIs) which enhance serotonin transmission and influence mood, anxiety states, aggression, feeding and sexual behaviour. At present, 14 different serotonin receptors have been described and, although the function and localization of many of these receptors is becoming increasingly clear, much remains unknown, The SSRIs are intriguing drugs; by blocking presynaptic and somatodendritic serotonin transporters, they enhance serotonergic neurotransmission and thereby activate serotonin receptors. It is this effect which leads to the characteristic effects of the SSRIs. Theoretically, however, it appears possible that they may have differential effects on the various subpopulations of serotonin receptors. Differences between the SSRIs have recently been reported in males with rapid ejaculation; fluvoxamine, in contrast to other SSRIs, did not affect rapid ejaculation. What difference in the mechanism of action between the SSRIs is responsible for this differential profile? A conditioned taste aversion procedure has been used in mice to investigate the discriminatory stimuli (cues) of fluvoxamine and fluoxetine, It appeared that the discriminatory stimulus of fluvoxamine is primarily mediated via 5-hydroxytryptamine (HT)(1A) receptors, whilst that of fluoxetine is primarily mediated via 5-HT2C receptors, Both types of receptors have been implicated in depression and it is conceivable that different SSRIs have intrinsic activity at these receptors, Investigations are now ongoing to determine whether this differential mechanism of action also applies to the other SSRIs and whether there are differences between the SSRIs with respect to their effect on sexual behaviour in rodents. Int Clin Psychopharmacol 13 (suppl 6):S9-S14 (C) Lippincott-Raven Publishers.
引用
收藏
页码:S9 / S14
页数:6
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