张丽丽,李雁

• 1:黑龙江省中医药科学院

摘要(Abstract)：

目的探讨加味温胆方对心肌缺血(痰浊血瘀证)大鼠细胞凋亡及B淋巴细胞瘤(Bcl-2)、Bcl-2同源二聚体X蛋白(Bax)、Survivin、Caspase-3表达的影响。方法清洁级SD大鼠雄性100只,根据体质量随机分成5组:空白组、模型组、加味温胆方低剂量组(5.0 mg/kg)、加味温胆方中剂量组(10.0 mg/kg)、加味温胆方高剂量组(20.0 mg/kg)。模型组、加味温胆方各剂量组喂以高脂饲料,同时分别以0.9%氯化钠注射液及各剂量加味温胆方灌胃,连续灌胃7周,在第49天施冠状动脉结扎术;空白组喂以普通饲料,以0.9%氯化钠注射液灌胃,实验结束后,测定凋亡光密度及面积、Bcl-2、Bax、Survivin、Caspase-3蛋白及m RNA水平。结果与空白组比较,模型组及加味温胆方组各剂量Bcl-2、Survivin mRNA、蛋白表达水平降低,Bax、Caspase-3mRNA、蛋白表达水平、心肌细胞凋亡光密度及面积升高(P <0.05);与模型组比较,加味温胆方组各剂量组Bcl-2、Survivin mRNA、蛋白表达水平降低升高,Bax、Caspase-3 m RNA、蛋白表达水平、心肌细胞凋亡光密度及面积降低,且随着加味温胆方组给药剂量的增加,Bcl-2、Survivin mRNA、蛋白表达水平逐渐升高,Bax、Caspase-3 mRNA、蛋白表达水平、心肌细胞凋亡光密度及面积逐渐降低,剂量-效应关系明显(P <0.05)。结论加味温胆方能减轻冠心病大鼠的病理损伤,抑制心肌缺血(痰浊血瘀证)大鼠细胞凋亡,其机制与加味温胆方能促进Bcl-2、Survivin mRNA、蛋白的表达,抑制Bax、Caspase-3 m RNA、蛋白的表达有关。

关键词(KeyWords)： 心肌缺血;加味温胆方;痰浊血瘀证;细胞凋亡;Bcl-2;Bax;Survivin;Caspase-3

Abstract:

Keywords:

基金项目(Foundation): 黑龙江省哈尔滨市应用技术研究与开发项目(2016RAQXJ193)

作者(Author): 张丽丽,李雁

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