人参茎叶皂苷和胆碱协同改善Alzheimer病学习记忆的作用

目的　观察人参茎叶皂苷和胆碱合用对Alzheimer病(AD)学习记忆的影响。方法　喹啉酸损毁老年大鼠双侧迈尼特基底核制备AD动物模型 ,一次性训练被动回避跳台实验和水迷宫空间分辨能力测试手段观察学习记忆变化。结果　人参茎叶皂苷 (4 0 0mg·kg-1·d-1)和胆碱 (2 0 0mg·kg-1·d-1)合用 ,AD大鼠在跳台中出现的错误反应次数 (ig13d)和学会迷宫所需的训练次数 (ig 16d)显著减少 ,且均比单用效应明显 ,合用后Q >1,其作用与 1,2 ,3,4 四氢吖啶(THA ,10mg·kg-1·d-1,ig)无明显差异。结论　人参茎叶皂苷和胆碱合用有协同改善AD学习记忆障碍的作用。

Effects of ginsenoside of stem and leaf in combination with choline on improving learning and memory of Alzheimers disease

AIM To observe the synergical effects of ginsenoside of stem and leaf(GSL)in combination with choline on learning and memory of Alzheimers disease(AD). MEHODS AD animal models were made by damaging nucleus basalis of Meynert with quinolinic acid. One time training passive aviodance step-down and water-maze spatial localization task were used to observe the ability of learning and memory.RESULTS Treatment with combination of GSL(400 mg·kg -1 ·d -1 ,ig) and choline(200 mg·kg -1 ·d -1 ,ig) on AD rats decreased significantly the number of errors on step down (ig for 13 days) and the training times to reach the criterion on water maze (ig for 16 days). The effect of GSL in combination with choline was more remarkable than that of GSL or choline and proved no obvious difference compaired with that of 1,2,3,4-tetrahydroacridine (10 mg·kg -1 ·d -1 ,ig). Value Q was more than one after administrition of both GSL and choline. CONCLUSION GSL in combination with choline may synergically improve the impairement of learning and memory of AD.