艾司西酞普兰对慢性脑缺血大鼠认知功能的影响

被引：5

作者：

孙岩

张博爱

田田

李俊敏

陈思

史静宇

机构：

[1] 郑州大学第一附属医院神经内一科

来源：

西安交通大学学报(医学版) | 2014年 / 35卷 / 03期

关键词：

艾司西酞普兰; 慢性脑缺血; 脑源性神经营养因子; 认知功能;

D O I：

暂无

中图分类号：

R743 [脑血管疾病];

学科分类号：

摘要：

目的观察艾司西酞普兰(escitalopram,ESC)对慢性脑缺血大鼠认知功能、海马区脑源性神经营养因子(BDNF)及CA1区树突长度、分支及树突棘密度的影响。方法将SD大鼠随机分为假手术组、模型组、实验组[2VO模型+30mg/(kg·d)ESC干预],采用双侧颈总动脉永久性阻断法(2VO)建立慢性脑缺血模型,选给药满1、2、4、8周4个时间点,通过Morris水迷宫检测各组大鼠的认知功能,Western blot检测大鼠海马区BDNF的表达,高尔基染色观察神经元树突长度、分支及树突棘密度的变化。结果模型组和实验组大鼠与假手术组相比逃避潜伏期明显延长(P<0.05),实验组逃避潜伏期较模型组明显缩短(P<0.05);模型组和实验组大鼠海马CA1区大锥体细胞树突长度、分支及树突棘密度较假手术组明显减少(P<0.05),实验组海马CA1区大锥体细胞树突分支及长度、树突棘密度较模型组明显增多(P<0.05);实验组和模型组海马区BDNF含量较假手术组减少(P<0.05),实验组海马区BDNF含量较模型组增多(P<0.05)。结论艾司西酞普兰能明显延缓大鼠慢性脑缺血所致认知功能障碍的进展,其机制可能是通过促进BDNF表达从而改善学习记忆能力。

引用

页码：315 / 319

页数：5

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