Beneficial effects of muscone on cardiac remodeling in a mouse model of myocardial infarction

作者：Xiaoyan Wang, Haoyu Meng, Peng‐Sheng Chen, Naiquan Yang, Xin Lu, Ze‐Mu Wang, Wei Qiang Gao, Ningtian Zhou, Min Zhang, Zhihui Xu, Bo Chen, Zhengxian Tao, Liangsheng Wang, Zhijian Yang, TIEBIN ZHU · 发表于：International Journal of Molecular Medicine · 年份：2014 · DOI：10.3892/ijmm.2014.1766 · 被引用次数：61 · 研究领域：Cardiac Fibrosis and Remodeling、Cardiac Ischemia and Reperfusion、Cardiovascular Function and Risk Factors

Musk has been traditionally used in East Asia to alleviate the symptoms of angina pectoris. However, it remains unclear as to whether muscone, the main active ingredient of musk, has any beneficial effects on persistent myocardial ischemia in vivo. The aim of the present study was to investigate whether muscone can improve cardiac function and attenuate myocardial remodeling following myocardial infarction (MI) in mice. Mice were subjected to permanent ligation of the left anterior descending coronary artery to induce MI, and then randomly treated with muscone (2 mg/kg/day) or the vehicle (normal saline) for 3 weeks. Sham-operated mice were used as controls and were also administered the vehicle (normal saline). Treatment with muscone significantly improved cardiac function and exercise tolerance, as evidenced by the decrease in the left ventricular end-systolic diameter, left ventricular end-diastolic diameter, as well as an increase in the left ventricular ejection fraction, left ventricular fractional shortening and time to exhaustion during swimming. Pathological and morphological assessments indicated that treatment with muscone alleviated myocardial fibrosis, collagen deposition and improved the heart weight/body weight ratio. Muscone inhibited the inflammatory response by reducing the expression of transforming growth factor (TGF)‑β1, tumor necrosis factor (TNF)-α, interleukin (IL)-1β and nuclear factor (NF)-κB. Treatment with muscone also reduced myocardial apoptosis ...