CGRP和NGF对短暂性全脑缺血后再灌注大鼠纹皮质Caspase-3蛋白表达的影响

被引:27
作者
金大成
王铁民
方秀斌
机构
[1] 中国医科大学基础医学院解剖学教研室
[2] 中国医科大学基础医学院神经生物学教研室 沈阳
[3] 沈阳
关键词
全脑缺血; Caspase-3; 降钙素基因相关肽; 神经生长因子; 纹皮质; 大鼠;
D O I
暂无
中图分类号
R741 [神经病学];
学科分类号
1002 ;
摘要
为了探讨外源性降钙素基因相关肽 ( CGRP)和神经生长因子 ( NGF)对短暂性全脑缺血后再灌注大鼠纹皮质 Caspase-3蛋白表达的影响 ,在全脑缺血后再灌注模型上 ,应用免疫组织化学结合显微图象分析方法检测了 Caspase-3蛋白表达。结果发现 ,假手术组大鼠纹皮质未见 Caspase-3表达 ;缺血组较假手术组 Caspase-3表达显著增加 ( P<0 .0 1) ;CGRP组和 NGF组 Cas-pase-3表达均弱于缺血组 ( P<0 .0 5 ) ;CGRP和 NGF合用组 Caspase-3表达明显弱于缺血组 ( P<0 .0 1) ,分别弱于 CGRP组 ( P<0 .0 5 )和 NGF组 ( P<0 .0 5 )。缺血组缺血后再灌注 3 h Caspase-3开始表达 ,1d达高峰 ,3 d时减弱 ,CGRP和 NGF合用组 Cas-pase-3表达随着缺血后再灌注时间的延长而逐渐减弱。以上结果提示 :CGRP和 NGF分别抑制全脑缺血后大鼠纹皮质 Caspase-3蛋白表达 ,联合应用则能显著抑制全脑缺血后大鼠纹皮质 Caspase-3蛋白表达 ,二者对保护缺血神经元可能有协同作用
引用
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页码:296 / 300
页数:5
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