Cardioprotective effects of combined therapy with diltiazem and superoxide dismutase on myocardial ischemia-reperfusion injury in rats

被引：34

作者：

Chen, Chunxia ^{[1
]}

Lu, Wensheng ^{[2
]}

Wu, Guangwei ^{[3
]}

Lv, Liwen ^{[4
]}

Chen, Wan ^{[4
]}

Huang, Luying ^{[5
]}

Wu, Xubin ^{[3
]}

Xu, Nengwen ^{[3
]}

Wu, Yinxiong ^{[3
]}

机构：

[1] Peoples Hosp Guangxi Zhuang Autonomous Reg, Dept Hyperbar Oxygen, Nanning 530021, Guangxi, Peoples R China

[2] Peoples Hosp Guangxi Zhuang Autonomous Reg, Dept Endocrinol, Nanning 530021, Guangxi, Peoples R China

[3] Peoples Hosp Guangxi Zhuang Autonomous Reg, Dept Cardiol, 6 Taoyuan Rd, Nanning 530021, Guangxi, Peoples R China

[4] Peoples Hosp Guangxi Zhuang Autonomous Reg, Dept Emergency, Nanning 530021, Guangxi, Peoples R China

[5] Peoples Hosp Guangxi Zhuang Autonomous Reg, Dept Resp Dis, Nanning 530021, Guangxi, Peoples R China

来源：

LIFE SCIENCES | 2017年 / 183卷

关键词：

Diltiazem; Superoxide dismutase; Myocardial ischemia-reperfusion injury; Calcium overload; Apoptosis; ISCHEMIA/REPERFUSION-INJURY; HYPERBARIC-OXYGEN; D-GALACTOSE; CELL-DEATH; APOPTOSIS; MECHANISMS; OVEREXPRESSION; MODEL; EXPRESSION; PROTECTION;

D O I：

10.1016/j.lfs.2017.06.024

中图分类号：

R-3 [医学研究方法]; R3 [基础医学];

学科分类号：

100103 [病原生物学]; 100218 [急诊医学];

摘要：

Aims: Our experiments were designed to study the effect of diltiazem (DIL) combined with superoxide dismutase (SOD) on myocardial ischemia-reperfusion (MIRI) injury in a rat model. Main methods: Fifty rats were randomly separated into sham, ischemia-reperfusion (IR), DIL (5 mg/kg), SOD (10,000 U/kg) and combinatorial therapy (DIL plus SOD) groups. MIRI was induced by ligating the left anterior descending coronary artery for 30 min and then reperfusing for 60 min. The cardioprotective effects of combinatorial therapy were evaluated using hemodynamics, biochemical indices, histopathology and apoptotic-related proteins and gene expression. Key findings: Compared with the IR group, combinatorial therapy significantly improved cardiac function and decreased arrhythmia, myocardial infarction area and release of myocardial enzyme. In addition, combinatorial therapy protected the myocardial cell structure as well as markedly alleviated oxidative stress, resulting in upregulation of Bcl-2 and adenine nucleotide transporter-1 expression as well as downregulation of Bax, caspase-3 and cleaved caspase-3 expression. Significance: Our results indicated that DIL combined with SOD can provide protection against MIRI in rats, and these effects may be attributed to a reduction in oxygen stress damage, attenuation of calcium overload, and inhibition of cell apoptosis. (C) 2017 Elsevier Inc All rights reserved.

引用

页码：50 / 59

页数：10

共 60 条

[1]

Toll-like receptor 4 expression is required to control chronic Mycobacterium tuberculosis infection in mice [J].