Original Article
Effect of atorvastatin on the expression of cardiac collagen in atherosclerotic rabbits
Di Bin, Lu Yusa, Zhang Guojiang
Published 2016-10-25
Cite as China Clin Prac Med, 2016,7(5): 45-48. DOI: 10.3760/cma.j.issn.1673-8799.2016.05.012
Abstract
ObjectiveTo establish rabbit atherosclerosis model and to observe the change of cardiac TIMP-4, investigate the chang of cardiac collagen and the effect of atorvastatin on the expression of cardiac collagen in atherosclerotic rabbits.
MethodsEighteen male New Zealand white rabbits were randomly divided into three groups: control group, atherosclerosis group, atorvastatin group. To determine the expression of cardiac chymase and TIMP-4, the level of cadiac Ang Ⅱ and cardiac collagen.
ResultThe cardiac chymase expression and cardiacTIMP-4 of AS Group higher than C Group and ATV group(P<0.01) ;The levels of cardiac AngⅡand cardiac collagen in AS group were significantly higher than the C group and ATV group(P<0.01).
ConclusionsWhen atherosclerosis occurs, the activation of cardiac renin-angiotensin system mainly in the expression and level of chymase,TIMP-4,Ang Ⅱ and cardiac collagen were markedly elevated, which cause collagen hyperplasia and fibrosis of myocardium. Atorvastatin could restrain cardiac renin-angiotensin system, and prevent the hyperplasia of cardiac collagen and the fibrosis of cardiac extracellular matrix.
Key words:
atherosclerosis; cardiac collagen; chymase; TIMP-4; AngⅡ; atorvastatin
Contributor Information
Di Bin
Department of Cardiology ShanXi academy of medical sciences, ShanXi DaYi Hospital, Taiyuan 030032, China
Lu Yusa
Zhang Guojiang