β淀粉样蛋白1-40和氯化铝双干预阿尔茨海默病大鼠模型的建立

被引:17
作者
刘志安 [1 ,2 ]
赵娓娓 [3 ]
马凯 [4 ]
吕春娥 [2 ]
徐铁军 [1 ,2 ]
机构
[1] 徐州医学院,江苏省脑病生物信息重点实验室
[2] 徐州医学院,人体解剖学和神经生物学教研室
[3] 解放军第四军医大学附属西京医院放射科
[4] 计算机教研室
关键词
氯化铝; β淀粉样蛋白1-40; 阿尔茨海默病; 大鼠; 动物模型;
D O I
暂无
中图分类号
R749.16 [];
学科分类号
摘要
背景:目前已建立的各种阿尔茨海默病动物模型均存在一定的局限性。目的:以β淀粉样蛋白1-40和氯化铝双干预的方式,建立一种较为理想而实用的阿尔茨海默病大鼠模型。方法:健康雄性老年SD大鼠,经Morris水迷宫训练和筛选后,随机分为模型组、生理盐水组和对照组。采用单侧侧脑室一次性注射β淀粉样蛋白1-40和腹腔连续4周隔天注射3%氯化铝的方式建立阿尔茨海默病大鼠模型。以Morris水迷宫实验和跳台实验检测模型大鼠的行为学变化。以刚果红和苏木精-伊红染色检测大鼠海马淀粉样蛋白沉积以及病理学改变。结果与结论:与对照组及生理盐水组相比,模型组大鼠水迷宫实验逃避潜伏期明显延长(P<0.05);跳台实验反应时间、基础错误次数和错误次数显著增加(P<0.05),潜伏期明显缩短(P<0.05)。模型组大鼠海马可见淀粉样蛋白物质沉积,细胞形态发生明显的损伤改变且细胞数量减少。以上结果提示,以β淀粉样蛋白1-40和氯化铝双干预的方式能够成功复制出一种比较理想而实用的阿尔茨海默病大鼠模型。
引用
收藏
页码:6917 / 6921
页数:5
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