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参附益心颗粒对急性心肌梗死后心力衰竭大鼠心肌细胞线粒
体自噬的影响 Δ
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曹亚选 ,郑荣菲 ,王 贺 ,曹英杰 ,董文杰 ,崔 琳 ,李 彬 ,陈玉善 ,朱明军(1.河南中医药大学第一临
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床医学院,郑州 450099;2.河南中医药大学第一附属医院心脏中心,郑州 450099)
中图分类号 R965 文献标志码 A 文章编号 1001-0408(2022)10-1183-06
DOI 10.6039/j.issn.1001-0408.2022.10.06
摘 要 目的 研究参附益心颗粒对急性心肌梗死后心力衰竭大鼠心肌细胞线粒体自噬的影响。方法 采用结扎左冠状动脉前降
支的方法建立急性心肌梗死后心力衰竭大鼠模型,将造模成功的大鼠分为模型组,参附益心颗粒低、高剂量组(1.76、8.8 g/kg),福
辛普利钠片组(阳性对照,4 mg/kg),另设假手术组(相同位置只穿线不结扎),每组8只。干预4周后,使用生理记录仪检测各组大
鼠的血流动力学指标,观察各组大鼠心肌组织的病理学变化,检测各组大鼠心肌细胞氧化应激水平和线粒体膜电位以及心肌组织
中PTEN诱导激酶1(PINK1)、E3泛素连接酶Parkin、泛素结合蛋白P62的表达水平。结果 与假手术组比较,模型组大鼠心肌纤维
形态紊乱,炎症细胞浸润等病理损伤严重,其左心室收缩末期压力(LVESP)、左心室内压最大上升速率(+dp/dtmax )、左心室内压最
大下降速率(-dp/dtmax )、左心室缺血心肌细胞总抗氧化能力、线粒体膜电位以及心肌组织中PINK1、Parkin、P62蛋白的表达水平
均显著降低(P<0.01),左心室舒张末期压力(LVEDP)、左心室缺血心肌细胞活性氧水平和还原型烟酰胺腺嘌呤二核苷酸磷酸氧
化酶活性均显著升高(P<0.01)。与模型组比较,各药物干预组大鼠心肌组织病理损伤有所减轻,上述指标均有不同程度改善
(P<0.01或P<0.05)。结论 参附益心颗粒具有降低氧化应激水平、缓解急性心肌梗死后心力衰竭的作用,可能与其激活Parkin依
赖性通路而增强线粒体自噬、减少线粒体功能障碍有关。
关键词 参附益心颗粒;急性心肌梗死;心力衰竭;线粒体自噬;大鼠
Effects of Shenfu yixin granule on mitochondrial autophagy of cardiomyocytes in rats with heart failure
after acute myocardial infarction
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CAO Yaxuan ,ZHENG Rongfei ,WANG He ,CAO Yingjie ,DONG Wenjie ,CUI Lin ,LI Bin ,CHEN Yushan ,
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ZHU Mingjun(1. The First Clinical Medical School,Henan University of Chinese Medicine,Zhengzhou 450099,
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China;2. Heart center,the First Affiliated Hospital of Henan University of Chinese Medicine,Zhengzhou
450099,China)
ABSTRACT OBJECTIVE To study the effects of Shenfu yixin granule on mitochondrial autophagy of cardiomyocytes in rats
with heart failure after acute myocardial infarction. METHODS The model of heart failure after acute myocardial infarction was
established by ligaturing the anterior descending branch of the left coronary artery in rats. The model rats were divided into model
group,Shenfu yixin granule low-dose and high-dose groups(1.76,8.8 g/kg),Fosinopril sodium tablets group(positive control,4
mg/kg),sham operation group was set up(only threading without ligation at the same position),with 8 rats in each group. After 4
weeks of drug intervention,the hemodynamic indexes of rats in each group were measured by physiological recorder. The
pathological changes of myocardial tissue were observed in each group. The level of oxidative stress in cardiomyocytes,
mitochondrial membrane potential,protein expression of PTEN-induced putative kinase 1(PINK1),E3 ubiquitin ligase Parkin
and ubiquitin binding protein P62 in myocardial tissue of rats in each group were detected. RESULTS Compared with sham
operation group,the pathological injuries such as myocardial fiber morphology disorder and inflammatory cell infiltration were
serious. The left ventricular end systolic pressure(LVESP),maximum rate of rise of left ventricular internal pressure(+dp/dtmax ),
maximun rate of decrease of left ventricular internal pressure(- dp/dtmax ),total antioxidant capacity,mitochondrial membrane
potential,PINK1,Parkin and P62 protein expression were significantly decreased in model group(P<0.01). The left ventricular
end diastolic pressure(LVEDP),the level of reactive oxygen species and the activity of reduced nicotinamide adenine dinucleotide
phosphate in left ventricular ischemic cardiomyocytes were significantly increased(P<0.01). Compared with model group,the
pathological injuries of myocardial tissue in intervention groups were alleviated,and above indexes were improved in varying
degrees(P<0.01 or P<0.05). CONCLUSIONS Shenfu yixin granule can reduce the level of oxidative stress and alleviate heart
failure after acute myocardial infarction,which may be related
Δ 基金项目:国家自然科学基金资助项目(No.81603432);河南省
to the activation of Parkin-dependent pathway to strengthen
中医药科学研究专项课题(No.2019ZY2139)
mitochondrial autophagy and reduce mitochondrial dysfunction.
*硕士研究生。研究方向:冠心病与心力衰竭的基础和临床。
E-mail:1175595675@qq.com KEYWORDS Shenfu yixin granule; acute myocardial
# 通信作者:副主任医师,博士。研究方向:冠心病、心力衰竭、离 infarction;heart failure;mitochondrial autophagy;rat
子通道病的基础和临床。E-mail:ewaller@163.com
中国药房 2022年第33卷第10期 China Pharmacy 2022 Vol. 33 No. 10 ·1183 ·