Studies on nootropic activity and mechanism of emodin-8-O-?-D-glucopyranoside
- VernacularTitle:大黄素-8-O-?-D-吡喃葡萄糖苷的促智活性及其机制
- Author:
Wansheng CHEN
;
Jiangping XU
;
Li LI
;
Chuanzhuo QIAO
;
- Publication Type:Journal Article
- Keywords:
Radix Polygoni Multiflori Preparata (PMEG);
emodin 8 O ? D glucopyranoside;
nootropic activity;
acetylcholinesterase
- From:
Chinese Traditional and Herbal Drugs
1994;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
Object To investigate the nootropic activity of emodin 8 O ? D glucopyranoside, the active principle of Radix Polygoni Multiflori Preparata(PMEG), and its mechanism of action Methods Nootropic activity was evaluated with step down test of mice, and its nootropic mechanism studied by its antiacetylcholinesterase (anti AchE) effect on mice brain in vivo and in vitro as determined by pectrophotometry Results PMEG (ig) significantly improved the learning and memory of both normal and intelectual deficit mice induced by scopolamine PMEG showed dose dependent inhibition of AchE, and the antiacetylcholinesterase effect is reversible both in vivo and in vitro In acute experiment, the half recovery time of AchE is 115 min, and 165 min in chronic experiment Conclusion PMEG showed good nootropic activity, and it is a reversible AchE inhibitor
