[关键词]
[摘要]
目的: 研究福辛普利( fosinopril) 对压力超负荷性心肌肥厚大鼠bcl-2、bax 基因表达的影响。方法:
将36 只Wistar 大鼠随机分为A 组( 假手术组) 、B 组( 腹主动脉缩窄组) 、C 组( 腹主动脉缩窄组+福辛普利给药
组) 。实验中以左心室重量指数( LVW/BW) 作为判断心肌肥厚的指标; 心肌细胞bcl-2、bax 基因表达的变化用
间接免疫荧光标记法比较。心肌细胞bcl-2、bax 基因表达用流式细胞仪( Flow Cytometry FCM) 测试。结果: B 组
与A 组相比,心肌细胞bcl-2 基因表达下降( P<0. 01) ,bax 基因表达增多( P<0. 01) ; C 组与B 组相比,bcl-2 基
因表达增多( P<0. 01) ,bax 基因表达下降( P<0. 05) 。结论: 福辛普利可促进压力超负荷性心肌肥厚大鼠bcl-2
基因的表达,抑制bax 基因的表达,从而使心肌肥厚发生逆转。
[Key word]
[Abstract]
Objective: To investgate the effects of fosinopril on the bcl-2 and bax genes of myocardial
hypertrophy rat with pressure overload. Methods: 36 Wistar rats were randomly divided into three
groups,A group( false operation group) ,B group( abdominal aorta constriction group) and C group( abdominal
aorta constriction + fosinopril treatment group) . The ratio of left ventricular weight vs body
weight( LVW/BW) was regarded as the index of myocardial hypertrophy; Cardiomyocytes bcl -2,bax
gene expression changes in comparison with the indirect immunofluorescence,which was teasted by
Flow Cytometry ( FCM) . Result: Comparing with A group,B group is decreased obviously in the bcl-2
gene expression ( P<0. 01) ,and increased in the bax gene expression ( P<0. 01) . Comparing with B
group,C group is increased obviously in the bcl-2 gene expression ( P<0. 01) ,and decreased in the
bax gene expression ( P<0. 05) . Conclusion: Fosinopril could increase the expression of bcl-2 gene
and decrease the expression of bax gene in the hypertrophy rats with pressure verload.
[中图分类号]
R542. 2
[基金项目]
收稿日期: 2014-06-10; 修回日期: 2014-08-11
基金项目: 内蒙古自然科学基金项目( 2012MS1152)
作者简介: 辛雪( 1984-) ,女,蒙古族,内蒙古医科大学基础医学院生理教研室助教。
通讯作者: 薛明明,教授,E-mail:
happybirdnmg@163. com 内蒙古医科大学基础医学院生理教研室, 010010