大鼠短暂脑缺血后海马区c-fos mRNA和FOS蛋白表达的时间规律

被引:9
作者
田金州
时晶
高扬
林嘉友
尹军祥
王永炎
机构
[1] 北京中医药大学东直门医院老年病科
[2] 中国医学科学院基础医学研究所免疫室
[3] 中国中医研究院
基金
长江学者奖励计划;
关键词
c-fos mRNA; FOS蛋白; 脑缺血; 海马区; 动物模型;
D O I
暂无
中图分类号
R741 [神经病学];
学科分类号
1002 ;
摘要
目的 探讨大鼠脑缺血 再灌注后脑海马区c fosmRNA和FOS蛋白表达规律。方法 采用左侧大脑中动脉插入丝线结扎 (LMCAO)方法制作大鼠脑缺血 再灌注缺血模型 ,分别按照 30min至 7d的不同灌注时间取材 ,应用原位杂交方法标记各实验组大鼠脑组织海马区c fosmRNA表达数量 ;应用免疫组化方法标记各实验组大鼠脑组织中海马区FOS阳性神经元数量。结果 c fosmRNA阳性细胞在MCAO缺血再灌注 1h后开始表达 ,2h后达高峰 ,至 2d时c fosmRNA阳性细胞表达基本消失 ;c fos免疫活性细胞从 2h开始表达 ,4h达高峰 ,4d时表达基本消失。脑缺血 再灌注后c fosmRNA与FOS蛋白在海马区表达具有一定的时间上规律性。结论 本研究证明了大鼠MCAO缺血 再灌注后可诱发FOS蛋白和c fosmRNA表达增加 ,且基因和蛋白的表达均具有一定的时间规律性和相关性。
引用
收藏
页码:131 / 135
页数:5
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