老年学习记忆减退大鼠齿状回突触的定量研究

被引:6
作者
洪岸
姚志彬
顾耀铭
陈以慈
邝国璧
机构
[1] 中山医科大学解剖学教研室!广州
关键词
老年学习记忆减退; 齿状回; 突触; 大鼠;
D O I
暂无
中图分类号
R339 [];
学科分类号
1001 ;
摘要
据老年大鼠在Morris水迷宫中的行为表现,将其分为老年学习记忆减退和学习记忆正常两部分.采用透射电镜观察、拍片,对齿状回中分子层突触的数量和大小进行体视学定量分析.结果表明:老年记忆减退鼠突触数密度、面密度较老年正常和青年鼠明显减少.单个突触平均面积较其显著增大,且与大鼠行为显著相关.
引用
收藏
页码:222 / 225
页数:4
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