中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (27): 4075-4082.doi: 10.3969/j.issn.2095-4344.2016.27.018

• 运动医学动物模型 Animal models of sports medicine • 上一篇    下一篇

运动干预对胰岛素抵抗模型大鼠血清相关因子及免疫能力的影响

李庆贺1,汪君民2   

  1. 1南通航运职业技术学院体育教学部,江苏省南通市  226010
    2南通大学体育科学学院,江苏省南通市   226019
  • 修回日期:2016-04-13 出版日期:2016-06-30 发布日期:2016-06-30
  • 通讯作者: 汪君民,博士,副教授,硕士生导师,南通大学体育科学学院,江苏省南通市 226019
  • 作者简介:李庆贺,男,1981年生,江苏省赣榆县人,汉族,2008年云南师范大学毕业,硕士,讲师,主要从事体质健康与测量研究。
  • 基金资助:

    福建省自然科学基金项目(2011J01151)

Effects of exercise intervention on serum-related factors and immunity in a rat model of insulin resistance

Li Qing-he1, Wang Jun-min2   

  1. 1Department of Physical Education, Nantong Shipping College, Nantong 226010, Jiangsu Province, China
    2Institute of Sports Science, Nantong University, Nantong 226019, Jiangsu Province, China
  • Revised:2016-04-13 Online:2016-06-30 Published:2016-06-30
  • Contact: Wang Jun-min, M.D., Associate professor, Master’s supervisor, Institute of Sports Science, Nantong University, Nantong 226019, Jiangsu Province, China
  • About author:Li Qing-he, Master, Lecturer, Department of Physical Education, Nantong Shipping College, Nantong 226010, Jiangsu Province, China
  • Supported by:

    the Natural Science Foundation of Fujian Province, No. 2011J01151

摘要:

文章快速阅读:

文题释义:
胰岛素抵抗:
维持机体糖类和脂质代谢的主要激素是胰岛素,由于某种原因机体对胰岛素反应性减低的一种病理生理状态,称为胰岛素抵抗。运动对胰岛素抵抗改善机制的研究,目前主要集中于运动对糖、脂质代谢以及运动对胰岛素信号系统的影响3个方面。
运动干预:原有的运动干预是指为保持和提高人体机能、改善健康状况而制定的有量化标准的体育锻炼计划。在文章中是指以运动为手段,有计划、适度的运动安排,让大鼠相关指标发生相应变化的实验方案实施。

 

摘要
背景:
2型糖尿病患者有不同程度的胰岛素抵抗和胰岛素分泌缺陷。视黄醇结合蛋白4是一种存在于血液中的脂肪源性因子,被认为是治疗胰岛素抵抗、内脏肥胖的重要靶点。
目的:观察胰岛素抵抗模型大鼠游泳训练干预后血清炎性细胞因子水平及免疫功能变化。
方法:28只8周龄雄性SD大鼠随机分为3组,运动干预组及模型安静组腹腔注射3 μg/g的重组血清视黄醇结合蛋白4,2次/d,每次间隔12 h,共6周。给药6周后运动干预组进行6周无负重游泳训练,60 min/d。采用ELISA试剂盒检测血清视黄醇结合蛋白4水平;稳态模式评估法评价胰岛素敏感性(胰岛素抵抗指数);TUNEL法标记大鼠胸腺凋亡细胞;ELISA法检测血清白细胞介素6的表达;双抗体夹心ABC-ELISA法检测血清粒细胞-巨噬细胞集落刺激因子水平;S-P一步法检测血液中CD4、CD8活性。
结果与结论:白细胞介素6、粒细胞-巨噬细胞集落刺激因子与胰岛素抵抗指数均呈显著正相关,胰岛素抵抗指数上升,会导致血清炎性细胞因子白细胞介素6、粒细胞-巨噬细胞集落刺激因子水平上升,而运动可以降低其水平;胸腺指数、CD4、CD4/CD8等免疫指标与胰岛素抵抗指数呈反向关系。提示运动干预可有效提高胰岛素抵抗大鼠的免疫机能,降低胰岛素抵抗指数。

 

 

关键词: 实验动物, 运动系统动物模型, 视黄醇结合蛋白4, 胰岛素抵抗, 白细胞介素6, 粒细胞-巨噬细胞集落刺激因子, 免疫, 福建省自然科学基金

Abstract:

BACKGROUND: Type 2 diabetic patients suffered from different levels of insulin resistance and insulin secretion defects. Retinol binding protein 4 is a fat derived factor found in the blood and is considered to be an important target for the treatment of visceral obesity and insulin resistance.
OBJECTIVE: To observe the level of serum inflammatory cytokines and the changes of immune function in insulin resistance model rats after swimming.
METHODS: A total of 28 8-week-old Sprague-Dawley male rat models were randomly divided into swimming group and rest group. Rat received intraperitoneal injection with 3 μg/g recombinant serum retinol binding protein 4, twice a day, with an interval of 12 hours, for 6 weeks. At 6 weeks after administration, rats in the swimming group were subjected to swimming without loading for 6 weeks, 60 minutes per day. Serum retinol binding protein 4 levels were measured with enzyme linked immunosorbent assay (ELISA) kit. Insulin sensitivity (insulin resistance index) was assessed with homeostasis model assessment. Terminal deoxynucleotidyl transferase dUTP nick end labeling method was used to mark the apoptotic cells in rat thymus. ELISA was used to detect serum interleukin-6 expression. ABC-ELISA was used to test Level of serum granulocyte macrophage colony stimulating factor. S-P One Step Method was used to test CD4 and CD8 activities in blood.
RESULTS AND CONCLUSION: Interleukin-6 and granulocyte macrophage colony stimulating factor were significantly positively associated with insulin resistance index. The increase in insulin resistance index would induce the increase in the levels of serum inflammatory cytokine interleukin 6 and granulocyte macrophage colony stimulating factor, but exercises could decrease above levels. Thymus index, CD4, and CD4/CD8 were negatively associated with insulin resistance index. These results indicate that exercise intervention effectively improved immunity function of rats with insulin resistance and reduced insulin resistance index.

 

 

Key words: Models, Animal, Insulin, Swimming, Retinol-Binding Proteins, Immunity, Tissue Engineering

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