SEROTONIN RELEASE IS MODULATED BY PRESYNAPTIC AUTORECEPTORS

被引:204
作者
CERRITO, F [1 ]
RAITERI, M [1 ]
机构
[1] UNIV CATTOLICA,IST FARMACOL,I-00168 ROME,ITALY
关键词
Serotonin antagonists; Serotonin autoreceptors; Serotonin release; Superfused synaptosomes;
D O I
10.1016/0014-2999(79)90506-5
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
The existence of presynaptic autoreceptors controlling the release of 5-hydroxytryptamine (5HT) from serotonergic nerve endings was investigated utilizing superfused hypthalamic synaptosomes. Extracellular 5HT reduced the high K+-induced release of previously accumulated 3H-5HT. The central 5HT receptor blocker methiothepin counteracted the inhibitory effect of 5HT. Other 5HT antagonists (cyproheptadine, methysergide and mianserin) were inactive and may therefore act preferentially at the postsynaptic receptors. © 1979.
引用
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页码:427 / 430
页数:4
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