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TGF-β1在慢性充血性心力衰竭中的表达及其作用 被引量:3

THE EXPRESSION OF TGF-β1 IN CHRONIC CONGESTED HEART FAILURE AND ITS FUNCTION
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摘要 目的探索TGF-β1在慢性充血性心力衰竭发生过程中的表达变化及其作用。方法将25只成年雄性SD大鼠随机分为正常组5只,假手术组10只,手术组10只,假手术组和手术组观察时间点为术后1、2、4、8 w。采用腹主动脉部分缩窄术,建立大鼠慢性充血性心力衰竭模型。应用超声心动图动态监测左室舒张末期内径(LVEDd),舒张末期室间隔厚度(IVSd)和左室后壁厚度(LVPWd);解剖心脏,计算心肌重量指数(心重/体重(HW/BW)和左室重/体重(LVW/BW));免疫组织化学染色法检测TGF-β1表达变化。结果手术组术后1 w LVEDd、IVSd和LVPWd分别为(4.87±0.26)mm、(2.04±0.11)mm和(1.93±0.19)mm;此后呈进行性增加趋势,假手术组无明显变化。正常组HW/BW和LVW/BW分别为(2.79±0.13)和(1.90±0.21);手术组术后8 w HW/BW可达(4.03±0.25),LVW/BW(3.15±0.31);假手术组无明显变化。手术组TGF-β1表达量明显高于正常组和假手术组。线性回归提示TGF-β1表达与LVW/BW存在线性相关。结论腹主动脉部分缩窄术造模可以在8 w内成功建立慢性充血性心力衰竭模型;慢性充血性心力衰竭发生过程中TGF-β1表达量明显增高。
出处 《现代医院》 2013年第3期3-6,共4页 Modern Hospitals
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参考文献8

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同被引文献28

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