Abstract
Chronic heart failure (CHF) is characterized by left ventricular dysfunction and altered autonomic control of cardiac function. This study aimed to investigate the effects of atorvastatin on left ventricular remodeling (LVR) and cardiac function in rats with isoproterenol-induced CHF and the possible mechanism. An isoproterenol-induced CHF model was established in rata, which were subsequently treated with atorvastatin. Echocardiography, hemodynamic, and left ventricular mass indexes were assessed. The mRNA expression of RhoA, Rho kinase, and endothelial nitric oxide synthase (eNOS) was determined by RT-qPCR. The protein expression of myosin-binding subunit (MBS), MBS-P, eNOS, phosphorylated-eNOS, RhoA, and Rho kinase was measured by Western blot analysis. The relative activity of NADPH oxidase, ROS, and NO was assessed by ELISA. Isoproterenol-induced CHF rats treated with atorvastatin exhibited decreased left ventricular end-systolic dimension, left ventricular end-diastolic dimension, left ventricular end-diastolic pressure, left ventricular mass index, maximum fall rate of change in left ventricular pressure, heart rate (p < 0.001), expression of RhoA, Rho kinase, MBS and MBS-P (p < 0.01), and relative activity of NADPH oxid...Continue Reading
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