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-  2015 

白藜芦醇调节钙循环蛋白改善阿霉素致心功能不全的实验研究 Resveratrol Ameliorates Cardiac Dysfunction Induced by Boxorubicin in Rats via Modulation of Calcium Cycling Proteins

Keywords: 白藜芦醇,阿霉素,心功能,兰尼碱受体,肌浆网钙泵

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Abstract:

目的:观察白藜芦醇在预防阿霉素心脏毒性作用的效果及机制。方法:将30只成年雄性SD大鼠随机分为正常对照组,阿霉素模型组(单纯阿霉素干预),白藜芦醇干预组(白藜芦醇+阿霉素干预)。2周后经有创心导管监测血流动力学评估心功能,利用实时定量PCR检测心肌组织钙调节相关蛋白兰尼碱受体(RyR2)、肌浆网钙泵(SERCA2a)的mRNA水平。结果:与正常对照组相比,阿霉素模型组、白藜芦醇干预组心功能均明显下降,左室舒张压(LVDP)、左室最大收缩速率(±dP/dtmax)减小(P<0.05),左室舒张末压(LVEDP)增大(P<0.05);白藜芦醇干预组较阿霉素模型组心功能显著改善,与阿霉素模型组比较,LVDP、±dP/dtmax增大(P<0.05),LVEDP减小(P<0.05)。与正常对照组相比,阿霉素模型组、白藜芦醇干预组心肌组织中RyR2、SERCA2a的mRNA表达水平均显著下降(P<0.05),与阿霉素模型组相比,白藜芦醇干预组RyR2、SERCA2a的mRNA水平均升高(P<0.05)。结论:白藜芦醇可减轻阿霉素心脏毒性作用,保护心脏功能,其机制与改善心肌细胞钙循环调节有关

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