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中国临床药理学与治疗学 ›› 2014, Vol. 19 ›› Issue (7): 756-760.

• 基础研究 • 上一篇    下一篇

长春西汀改善东莨菪碱诱导的小鼠学习记忆障碍及其机制的研究

徐文科1, 李庆2, 汪魏平1, 唐苏苏2, 汪平君1, 洪浩2, 张婷婷2   

  1. 1 皖南医学院弋矶山医院药剂科,芜湖 241001,安徽;
    2 中国药科大学药理教研室,南京 210009,江苏
  • 收稿日期:2012-11-17 修回日期:2013-06-10 发布日期:2014-07-21
  • 通讯作者: 洪浩, 男, 博士, 副教授, 硕士生导师, 研究方向:神经与内分泌药理。 Tel: 025?86185227  E?mail: haohongchina@hotmail.com
  • 作者简介:徐文科, 男, 主管药师,研究方向: 临床药学。 Tel: 13955398606 E-mail: xwk1970@126.com

Vinpocetine improves scopolamine-induced memory impairment in mice and its underlying mechanisms

XU Wen-ke1, LI Qing2, WANG Wei-ping1, TANG Su-su2, WANG Ping-jun1, HONG Hao2, ZHANG Ting-ting2   

  1. 1 Department of Pharmacy, Yijishan Hospital of Wannan Medical University, Wuhu 241001, Anhui,China;
    2 Department of Pharmacology, China Pharmaceutical University, Nanjing 210009, Jiangsu, China
  • Received:2012-11-17 Revised:2013-06-10 Published:2014-07-21

摘要: 目的 研究长春西汀对东莨菪碱诱导小鼠认知损害的影响及其作用机制。方法 采用腹腔注射东莨菪碱(0.8 mg·kg-1·d-1)制备小鼠认知损害模型,长春西汀连续灌胃给药10 d,每天1次,采用Morris水迷宫和避暗实验评价认知功能,并测定脑内乙酰胆碱(Acetylcholine, Ach)、乙酰胆碱酯酶(Acetylcholinesterase, AchE)水平。结果 长春西汀(3、6 mg·kg-1·d-1)能显著缩短小鼠在隐藏平台实验中寻找平台的潜伏期,增加空间探索实验中平台所在象限停留时间百分率;减少避暗测试中的错误反应次数。长春西汀还能显著增加小鼠脑组织海马区和皮层区Ach含量,并降低AchE活性。结论 长春西汀可通过降低AchE活性,使小鼠脑内Ach含量增加,从而改善东莨菪碱所致的小鼠认知损害。

关键词: 长春西汀, 东莨胆碱, 认知损害, 乙酰胆碱, 乙酰胆碱酯酶

Abstract: AIM: To investigate the effects of vinpocetine on the cognitive impairment induced by scopolamine in mice and underlying mechanisms. METHODS: Vinpocetine(3 mg·kg-1·d-1, 6 mg·kg-1·d-1) were orally administered after intraperitoneal injection with scopolamine (0.8 mg/kg). Cognitive function was evaluated by passive avoidance test and Morris water maze test after 10-day administration. Changes in cholinergic system reactivity were also examined by measuring the acetylcholine (Ach) and acetylcholinesterase (AchE) in the hippocampus and cortex.RESULTS:Treatment with vinpocetine(3 mg·kg-1·d-1, 6 mg·kg-1·d-1) significantly decreased the escape latency in hidden platform test, increased the time spent in the platform quadrant in the spatial probe test, and decreased the times of errors in the passive avoidance test. Vinpocetine also significantly increased Ach level and decreased AchE activity in the hippocampus and cortex. CONCLUSION: Vinpocetine may improve scopolamine-induced memory impairment through elevation of brain Ach levels resulting from inhibition of AchE activity in mice.

Key words: vinpocetine, scopolamine, memoy impairment, acetylcholine, acetylcholinesterase

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