Hippocampal cholinergic blockade enhances hypothalamic-pituitary-adrenal responses to stress

被引:35
作者
Bhatnagar, S [1 ]
Costall, B [1 ]
Smythe, JW [1 ]
机构
[1] UNIV BRADFORD,DEPT PHARMACOL,BRADFORD BD7 1DP,W YORKSHIRE,ENGLAND
关键词
hippocampus; cholinergic; stress; adrenocorticotropin; corticosterone; theta; fear;
D O I
10.1016/S0006-8993(97)00684-7
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
We examined the role of the hippocampal cholinergic system, which is known to mediate processes related to fear and anxiety, in the regulation of stress-induced hypothalamic-pituitary-adrenal (HPA) activity. Bilateral intra-hippocampal injections (30 CLS per side) of the muscarinic antagonist Scopolamine augmented adrenocorticotropin and corticosterone responses to restraint without altering basal HPA activity compared to vehicle-treated animals. These results suggest that the hippocampal cholinergic system regulates stress-induced HPA activity and may serve to coordinate behavioral and neuroendocrine responses to stress. (C) 1997 Elsevier Science B.V.
引用
收藏
页码:244 / 248
页数:5
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