Chinese Journal of Tissue Engineering Research ›› 2015, Vol. 19 ›› Issue (40): 6542-6546.doi: 10.3969/j.issn.2095-4344.2015.40.027

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Construction of obese mouse models with high fat diet feeding: relationship between nutritional factor and metabolic syndrome 

Dong Ming1, Liu Dong2, Liang Yun-hai2, Wen Zi-jun3, Ma Xiao-yu4   

  1. 1Department of Geriatrics, 2Department of Hand and Foot Surgery, 3Department of Neurosurgery, General Hospital of Liaohe Oilfield, Panjin 124010, Liaoning Province, China; 4Department of Gerontology, the First Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
  • Online:2015-09-30 Published:2015-09-30
  • Contact: Ma Xiao-yu, Master, Attending physician, Department of Gerontology, the First Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
  • About author:Dong Ming, Attending physician, Department of Geriatrics, General Hospital of Liaohe Oilfield, Panjin 124010, Liaoning Province, China

Abstract:

BACKGROUND: Metabolic syndrome greatly harms the human body, and is affected by many factors. Through constructing diet-induced animal models, we can better analyze the relationship between nutritional factor and metabolic syndrome, and provide reliable references for the clinical treatment of this disorder.

OBJECTIVE: To construct obese mouse models with high-fat diet feeding and discuss the relationship between nutritional factor and metabolic syndrome.

METHODS: Thirty mice were selected and randomly divided into model group (n=20) and control group (n=10), and were fed with high-fat and normal animal feeds for 10 consecutive weeks.

RESULTS AND CONCLUSION: Compared with the control group, after 1 week of feeding with high-fat animal feeds, body weight of mice in the model group raised, and differences gradually increased with the feeding time increased. After 8 weeks of feeding, body mass index of mice in the model group significantly raised (P < 0.05). After 4 weeks of feeding, fasting venous blood glucose level of mice in the model group significantly raised, and showed a gradual rise trend with feeding time. After 5 weeks of feeding, fasting insulin level of mice in the model group also began to rise. The oral glucose tolerance test showed that mice in the model group showed a gradual downward trend of glucose tolerance with feeding time. After 8 weeks of feeding, serum levels of total cholesterol and high density lipoprotein cholesterol in the model group significantly raised (P < 0.05). After 10 weeks of feeding, serum levels of triacylglycerol, total cholesterol, low density lipoprotein cholesterol and high density lipoprotein cholesterol in the model group raised (P < 0.05). The results demonstrate that obese mouse models were successfully constructed with high-fat diet feeding, which can simulate the natural progression of metabolic syndrome in human, moreover, the nutritional factor is closely related to metabolic syndrome.

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: 实验动物, 组织构建实验模型, 代谢综合征, 营养因素, 饮食诱导, 高脂饮食, 肥胖症, 小鼠, 口服糖耐量试验, 糖代谢, 脂代谢

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