https://scholars.lib.ntu.edu.tw/handle/123456789/523194
標題: | A proteomic study of the effects of ramipril on post-infarction left ventricular remodelling in the rabbit | 作者: | Chen, Ching-Yi BAI-CHIN LEE Hsu, Hsiu-Ching HUNG-JU LIN CHIA-LUN CHAO YEN-HUNG LIN YI-LWUN HO MING-FONG CHEN |
關鍵字: | Antioxidative defence; Coronary ligation; Myocardial infarction; Rabbit; Ramipril | 公開日期: | 八月-2008 | 卷: | 10 | 期: | 8 | 起(迄)頁: | 740-748 | 來源出版物: | European Journal of Heart Failure | 摘要: | Objectives: In this study, we used a proteomic approach to investigate the potential proteins regulated by ramipril in post-infarction left ventricular remodelling in the rabbit. Methods and results: Myocardial infarction (MI) was induced in male New Zealand White rabbits (2.5-3 kg) by ligation of the left anterior descending coronary artery. Two months later, the rabbits were either left untreated (MI group) or were treated daily for one month with 0.1 mg/kg wt of ramipril (ramipril group), then sacrificed. One month of ramipril treatment resulted in a significant improvement in the LV ejection fraction (LVEF) and a decrease in hydroxyproline content. The protein profiles of LV tissue showed that ramipril caused upregulation of glutathione peroxidase, superoxide dismutase (SOD), and heart-type fatty acid binding-protein (h-FABP) and downregulation of HSP27 and cyclophilin A. Ramipril treatment caused an increase in catalase, glutathione peroxidase, and SOD activity in the LV tissue. Oxidized glutathione levels and the GSSG/GSH ratio in the heart tissue were lower in the ramipril group than in the MI group. Conclusions: Ramipril increased antioxidative protein expression and enzyme activity, which could partly explain the role of ramipril in attenuating LV remodelling. In addition, the present study identifies several potential protein targets which may help to explain the mechanism by which ramipril exerts its effect in post-infarction LV remodelling in the rabbit. © 2008 European Society of Cardiology. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-46849110186&doi=10.1016%2fj.ejheart.2008.06.001&partnerID=40&md5=63a7c2c1e81c70c1605c3d2e6b8b12c5 https://scholars.lib.ntu.edu.tw/handle/123456789/523194 |
ISSN: | 1388-9842 | DOI: | 10.1016/j.ejheart.2008.06.001 |
顯示於: | 醫學系 |
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