通冠胶囊对气虚血瘀致心衰的保护作用实验研究Experimental Study on the Protective Effect of Tongguan Capsules on Heart Failure Caused by Qi Deficiency and Blood Stasis
谭亚芳;黄昭龙;祁建勇;于娟;张敏州;
摘要(Abstract):
目的 基于ERK1/2/GATA4信号通路阐明通冠胶囊治疗气虚血瘀致心衰的相关机制。方法 以18个月龄老年小鼠皮下注射异丙肾上腺素(ISO)的方法构建气虚血瘀致心衰模型,通过心脏超声和心肺称重明确心衰情况,免疫印迹检测ERK1/2/GATA4蛋白表达,从而明确通冠胶囊对气虚血瘀致心衰的作用机制。结果小鼠心脏超声结果表明,模型组与空白对照组、美托洛尔组以及通冠胶囊组比较,左室舒张末前壁厚度(LVAWd)、左室收缩末前壁厚度(LVAWs)、左室舒张末后壁厚度(LVPWd)、左室收缩末后壁厚度(LVPWs)、射血分数(EF)、左室短轴缩短率(FS)均有明显减小(P <0.01),LVIDs有明显增大(P <0.01),小鼠心肺称重结果表明,模型组与空白对照组、美托洛尔组以及通冠胶囊组比较,心/胫以及肺/胫均增大(P <0.05)。蛋白印迹实验结果表明,模型组与空白对照组、美托洛尔组以及通冠胶囊组比较,P-ERK以及GATA4表达量均增加(P <0.05)。结论 气虚血瘀过度激活ERK1/2/GATA4信号通路,导致心衰的发生,通冠胶囊能够通过抑制ERK1/2/GATA4信号通路,达到防治心衰的效果。
关键词(KeyWords): 心力衰竭;ERK1/2/GATA4通路;气虚血瘀;通冠胶囊;小鼠
基金项目(Foundation): 国家自然科学基金项目(81603429);; 广东省中医药局面上项目(20201142)
作者(Authors): 谭亚芳;黄昭龙;祁建勇;于娟;张敏州;
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