CENTRAL CHOLINERGIC RECEPTOR SUPER-SENSITIVITY AFTER LONG-TERM ATROPINE ADMINISTRATION

被引:29
作者
HERMAN, ZS [1 ]
SLOMINSKAZUREK, J [1 ]
机构
[1] SILESIAN MED ACAD,INST BIOL PHYSIOL,DEPT PHARMACOL,KATOWICE,POLAND
关键词
Atropine; Chronic treatment; Mice; Rats; Supersensitive cholinergic receptors;
D O I
10.1007/BF00427521
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Rats were treated with a single dose of atropine (AT) at 5 mg/kg, or every day for 14 or 31 days with the same dose of AT, 3 h after the single dose and 24 h after the last dose of chronically administered AT, 10 μg of ACh was injected intracerebroventricularly, and two tests were used to examine the behavior of the animals. The tremorigenic effect of oxotremorine was also measured in mice treated with 10 mg/kg of AT for 1 month. It was shown that a single dose of AT antagonized ACh-induced behavior. The long-term treatment with AT enhanced the depressive behavior of ACh in rats and the tremorigenic effect of oxotremorine in mice. The results suggest that long-term blockade of central cholinergic receptors induces their hypersensitivity. © 1979 Springer-Verlag.
引用
收藏
页码:337 / 340
页数:4
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