The ameliorating effect of the water layer of Fructus schisandrae on cycloheximide-induced amnesia in rats:: Interaction with drugs acting at neurotransmitter receptors

被引:24
作者
Hsieh, MT [1 ]
Wu, CR [1 ]
Wang, WH [1 ]
Lin, LW [1 ]
机构
[1] China Med Coll, Inst Chinese Pharmaceut Sci, Taichung 40421, Taiwan
关键词
Fructus Schisandra water layer; cycloheximide; passive avoidance task; rats;
D O I
10.1006/phrs.2000.0756
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
Our previous study indicated that the water layer present in Fructus Schisandra (FSW) at 10 and 25 mg kg(-1) significantly counteracted cycloheximide (CXM)-induced amnesia. Therefore, the mechanism of action of the ameliorating effect of FSW on CXM-induced amnesia in the passive avoidance task was investigated in rats. The ameliorating effect of FSW on CXM-induced amnesia was depressed by scopolamine. The serotonin releaser: p-chloroamphetamine significantly antagonized the ameliorating effect of FSW on CXM-induced amnesia. Furthermore, the ameliorating effect was also inhibited by the 5-HT1A receptor agonist 8-OH-DPAT, but potentiated by the 5-HT2 receptor antagonist ritanserin. Finally, the GABA(A) receptor antagonist bicuculline blocked the ameliorating effect of FSW. These results suggest that the beneficial effect of FSW on CXM-induced amnesia is amplified by treatment with serotonergic 5-HT2 receptor antagonists, but reduced by serotonergic 5-HT1A receptor agonists as well as GABA(A) and cholinergic receptor antagonists. (C) 2001 Academic Press.
引用
收藏
页码:17 / 22
页数:6
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