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胰岛素抵抗对大鼠脑海马区Aβ蛋白表达的影响及认知行为学的改变 被引量:4

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摘要 目的研究胰岛素抵抗大鼠脑海马区β-淀粉样蛋白的表达及认知行为学的改变。方法 30只Wistar雄性大鼠随机分为正常对照组(NC)、模型组(IR)。模型组给予高脂高糖饮食诱导胰岛素抵抗模型,正常对照组给予标准饲料喂养;采用Morris水迷宫实验检测2组大鼠认知行为的变化,免疫组织化法测定大鼠脑海马区Aβ40蛋白的表达。结果与NC组相比,IR组大鼠逃避潜伏期延长(P<0.01);与NC组相比,Aβ40在IR组大鼠脑海马区表达明显升高,差异有统计学意义(P<0.01)。结论胰岛素抵抗使认知功能受损和Aβ蛋白表达增加。
出处 《中国实用神经疾病杂志》 2011年第21期40-41,共2页 Chinese Journal of Practical Nervous Diseases
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