期刊
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
卷 111, 期 -, 页码 947-952出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ijbiomac.2018.01.048
关键词
Astragalus polysaccharides; Myocardial ischemia and reperfusion injury; Isoprenaline; Apoptosis
Astragalus polysaccharides (ASP) is extracted from Astragalus, and is the main active ingredient of Astragalus membranaceus. The purpose of this study was to investigate the protective effect of ASP on rat cardiomyocytes damage induced by myocardial ischemia and reperfusion injury (MVRI) and isoprenaline(ISO) in vivo and in vitro. The model of cardiomyocytes damage was induced using MVRI in a rat in vivo and also using ISO in cell. After ASP intervention, the protective effect of ASP on cardiomyocytes was evaluated by animal experimental and cell experimental. The results show that ASP can relieve the increase of cell volume in myocardium, reduce the apoptosis of cell in myocardial tissue caused by MVRI in vivo. At the cellular level, ASP can reverse the decrease of cell activity induced by ISO, inhibit the apoptosis, and decrease the levels of intracellular reactive oxygen species. Mechanistically at the molecular level, these effects are elicited via down-regulation of the protein levels of caspase-3 and bax and up-regulation of the protein levels of bcl-2 in both in vivo and in vitro. These results demonstrate that ASP has a protective efficacy in MVRI/ISO-treated cardiomyocytes by inhibiting the apoptosis. (C) 2018 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据