Effects of irbesartan on Notch1 signaling pathway in diabetic rats with myocardial injury

Zhongguo ying yong sheng li xue za zhi = Zhongguo yingyong shenglixue zazhi = Chinese journal of applied physiology
Heng ZhangHong-Ju Wang

Abstract

To investigate the effects and mechanisms of irbesartan on myocardial injury in diabetic rats, and to analyze the changes of Notch1 signaling pathway in it. Thirty rats were randomly divided into four groups:normal control group (CON, n=6), high calorie group (HC, n=6) and diabetes mellitus group (DM, n=9), irbesartan + diabetes group (Ir + DM, n=9). After modeling 8 weeks later, the body weight ratio and left ventricular weight index were measured and the serum levels of triglyceride (TG) and total cholesterol (TC) were measured by automatic biochemical analyzer. The changes of superoxide dismutase (SOD) activity and malondialdehyde (MDA) content in myocardium of rats were determined by the kit and the expressions of B-cell lymphoma-2 (Bcl-2) and Bcl-2 assaciated X protein (Bax) protein in myocardium were detected by immunohistochemistry. The expressions of Notch1, Hes-1 and jagged-1 in myocardium of rats were detected by Western blot. Compared with CON group, the levels of heart weight/body weight (H/B), left ventricular weight index(LVWI) and fasting blood glucose(FBG) in HC group were not significantly changed, while the levels of blood lipids, MDA and Bax were increased significantly, and the expressions of SOD, Bcl-2 and ...Continue Reading

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