Weidong Wu1, Haiying Wang2, Guangfa Jiao3, Jingjing Yue4, Guowei Wang1. 1. Department of Physical Education, Zhengzhou University, Zhengzhou, Henan, China. 2. Department of Human Kinetic Science, Hebei Institute of Physical Education, Shijiazhuang, Hebei, China. 3. Department of Human Kinetic Science, Hebei Institute of Physical Education, Shijiazhuang, Hebei, China; College of Basic Medical, Hebei Medical University, Shijiazhuang, Hebei, China. Electronic address: jiaogf8@163.com. 4. Department of Physical Education, Henan Mechanical and Electrical Vocational College, Zhengzhou, Henan, China.
Abstract
BACKGROUND: We aimed to investigate the therapeutic effect of aerobic exercise on atherosclerosis (AS) in apolipoprotein E-deficient mice and the adiponectin (ApN)-nuclear transcription factor κB (NF-κB) pathway involved in the related anti-inflammation. MATERIALS AND METHODS: ApoE-deficient mice with AS (AS+C), and ApoE-deficient mice with AS and aerobic exercise (AS+E) were investigated for body weight and visceral fat. Pathomorphology of the aortic vascular wall was qualitatively and quantitatively evaluated with hematoxylin-eosin staining. The ApN messenger RNA level in adipose tissue and ApN level in plasma were determined. The aortic adiponectin receptor 1 (AdipoR1) and NF-κB levels were determined with western blot. RESULTS: There was no significant difference in body weight between the AS+C and the AS+E groups, but visceral fat in the AS+E group was significantly smaller than that in the AS+C group. Aortic vascular wall fiber board in the AS+C group broke, but this aortic disease in the AS+E group was obviously alleviated. The AS+E group showed a smaller neointimal hyperplasia and plaque area compared with AS+C group. After a high-fat diet, the ApN levels in both adipose tissue and plasma were decreased in the AS+C group and returned to a relative high level in the AS+E group. The expression of AdipoR1 protein in the AS+C group was significantly lower than those in the AS+E group. As for NF-κB protein, its enhanced expression in the AS+C group was reversed to a relatively low level in the AS+E group. CONCLUSIONS: Aerobic exercise suppressed AS through the ApN-NF-κB pathway in ApoE-deficient mice.
BACKGROUND: We aimed to investigate the therapeutic effect of aerobic exercise on atherosclerosis (AS) in apolipoprotein E-deficientmice and the adiponectin (ApN)-nuclear transcription factor κB (NF-κB) pathway involved in the related anti-inflammation. MATERIALS AND METHODS: ApoE-deficient mice with AS (AS+C), and ApoE-deficient mice with AS and aerobic exercise (AS+E) were investigated for body weight and visceral fat. Pathomorphology of the aortic vascular wall was qualitatively and quantitatively evaluated with hematoxylin-eosin staining. The ApN messenger RNA level in adipose tissue and ApN level in plasma were determined. The aortic adiponectin receptor 1 (AdipoR1) and NF-κB levels were determined with western blot. RESULTS: There was no significant difference in body weight between the AS+C and the AS+E groups, but visceral fat in the AS+E group was significantly smaller than that in the AS+C group. Aortic vascular wall fiber board in the AS+C group broke, but this aortic disease in the AS+E group was obviously alleviated. The AS+E group showed a smaller neointimal hyperplasia and plaque area compared with AS+C group. After a high-fat diet, the ApN levels in both adipose tissue and plasma were decreased in the AS+C group and returned to a relative high level in the AS+E group. The expression of AdipoR1 protein in the AS+C group was significantly lower than those in the AS+E group. As for NF-κB protein, its enhanced expression in the AS+C group was reversed to a relatively low level in the AS+E group. CONCLUSIONS: Aerobic exercise suppressed AS through the ApN-NF-κB pathway in ApoE-deficient mice.