Effects of swimming on high-fat diet-induced obese and obese resistant rats

doi:10.3969/j.issn.2095-4344.2016.27.019

Abstract

Abstract:

BACKGROUND: The animal model of high fat diet-induced obesity is the first choice for the study of human obesity. Leptin and its receptor expression play an important role in the high fat diet-induced obesity and obesity resistant, but the exact mechanism and the role of swimming are not clear.
OBJECTIVE: To explore the effect of 7-week swimming on serum leptin and leptin receptor expression in hypothalamus in rats with high fat diets.
METHODS: A total of 60 Sprague-Dawley rats were fed with high fat diets for 8 weeks. The diet-induced obese and obese resistant rats were selected based on the body weight. 14 obese rats were equally divided into two groups: obese group and obese-exercise group; and 14 obese resistant rats were equally divided into two groups: obese resistant group and obese resistant-exercise group. All the rats were continually given high fat diets. Exercise groups accepted free swimming training for 7 weeks at the same time.
RESULTS AND CONCLUSION: Compared with the obese group, obese-exercise group had obviously decreased in body weight, fat pad weight, fat pad weight/body weight and serum leptin concentration. And obese-exercise group had obviously increased receptor mRNA expression in hypothalamus. There was no significant change in above indexes between the obese resistant group and obese resistant-exercise group. The results showed that swimming exercise can increase energy consumption and improve metabolism, which decreased the concentration of leptin and effectively improved leptin receptor expression in the hypothalamus to ease leptin resistance and improve the body’s metabolism.

中国组织工程研究杂志出版内容重点：肾移植；肝移植；移植；心脏移植；组织移植；皮肤移植；皮瓣移植；血管移植；器官移植；组织工程

Key words: Obesity, Leptin, Sports, Tissue Engineering

CLC Number:

R318

Wang Qing-fu, Gan Chun-long, Yi Xue-jie. Effects of swimming on high-fat diet-induced obese and obese resistant rats[J]. Chinese Journal of Tissue Engineering Research, 2016, 20(27): 4083-4089.

Figures/Tables 2

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