淫羊藿素对淀粉样蛋白25-35片段所致大鼠胆碱能神经元损伤的保护作用

被引:6
作者
冯飞
陈乾
宋斌
熊德庆
罗勇
机构
[1] 遵义医学院第三附属医院神经内科
关键词
阿尔茨海默病; 淫羊藿素; 胆碱乙酰化酶; 胆碱酯酶;
D O I
10.14169/j.cnki.zunyixuebao.2015.0060
中图分类号
R285.5 [中药实验药理];
学科分类号
100806 [中药药理学];
摘要
目的探索淫羊藿素(ICT)对淀粉样蛋白25-35片段(Aβ25-35)所致胆碱能神经元损伤的保护作用。方法 40只18月龄SD大鼠随机均分为对照组、模型组、ICT低剂量组(20 mg/kg)、ICT中剂量组(40 mg/kg)、ICT高剂量组(80 mg/kg),模型及ICT治疗组应用ICT灌胃预处理3 d后,在大鼠鼠脑海马内注入Aβ25-35造模,ICT继续灌胃2周后,水迷宫观察各组大鼠学习记忆能力,ELISA检测大鼠海马内乙酰胆碱酯酶(Ach E)和胆碱乙酰化酶(Ch AT)的含量。结果模型组大鼠较对照组大鼠出现明显学习记忆功能减退,且海马组织中Ach E和Ch AT含量较对照组明显下降。然而,ICT各剂量治疗组较模型组大鼠学习记忆功能减退明显改善,且Ach E和Ch AT含量显著增加。结论 ICT可通过改善脑内胆碱能神经功能减轻Aβ25-35所致的大鼠学习记忆功能减退。
引用
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页码:248 / 250+254 +254
页数:4
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