Serotonergic mechanisms in neuroleptic-induced catalepsy in the rat

被引:134
作者
Wadenberg, ML [1 ]
机构
[1] UNIV STOCKHOLM,DEPT PSYCHOL,S-10691 STOCKHOLM,SWEDEN
关键词
catalepsy; parkinsonism; dopamine; serotonin; receptor; rat;
D O I
10.1016/0149-7634(95)00057-7
中图分类号
B84 [心理学]; C [社会科学总论]; Q98 [人类学];
学科分类号
03 ; 0303 ; 030303 ; 04 ; 0402 ;
摘要
The present paper reviews a series of experiments aimed at elucidating the interaction between specific dopamine (DA) and 5-hydroxytryptamine (5-HT) receptors in the mediation of extrapyramidal motor functions in the rat. There is strong evidence to suggest that (1) the catalepsy produced by dopamine D-1 or D-2 receptor antagonists can be completely antagonized by the administration of 5-HT1A receptor agonists acting at 5-HT autoreceptors in the median raphe nucleus; (2) the catalepsy produced by a dopamine D-2 receptor antagonist can be completely antagonized by treatment with a 5-HT2A/C receptor agonist; and (3) the catalepsy produced by blockade of either dopamine D-1 or D-2 receptors is not affected by the administration of a 5-HT2A/C receptor antagonist. The emerging picture of DA/5-HT receptor interactions in the mediation of extrapyramidal motor functions is of great interest in relation to present efforts to develop new atypical neuroleptics with affinity for brain 5-HT receptor subtypes, and also for the observations that new serotonin selective re-uptake inhibiting antidepressants can produce parkinson-like symptoms in vulnerable individuals. Copyright (C) 1996 Elsevier Science Ltd.
引用
收藏
页码:325 / 339
页数:15
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