中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (27): 3963-3969.doi: 10.3969/j.issn.2095-4344.2016.27.002

• 骨及关节损伤动物模型 Animal models of bone and joint injuries • 上一篇    下一篇

不同运动强度干预2型糖尿病模型大鼠的骨密度变化

江  洪   

  1. 新乡医学院体育教学部,河南省新乡市  453003
  • 修回日期:2016-04-11 出版日期:2016-06-30 发布日期:2016-06-30
  • 作者简介:江洪,女,1966年生,河南省新乡市人,汉族,2007年河南师范大学毕业,硕士,副教授,主要从事体育社会学方面研究。
  • 基金资助:

    河南科技发展研究项目(A20140301)

Different exercise intensities affect bone mineral density in type 2 diabetic rats

Jiang Hong   

  1. Department of Physical Education, Xinxiang Medical University, Xinxiang 453003, Henan Province, China
  • Revised:2016-04-11 Online:2016-06-30 Published:2016-06-30
  • About author:Jiang Hong, Master, Associate professor, Department of Physical Education, Xinxiang Medical University, Xinxiang 453003, Henan Province, China
  • Supported by:

    the Science and Technology Development Research Project of Henan Province, No. A20140301

摘要:

文章快速阅读:

文题释义:
糖尿病引起的钙质流失和骨代谢异常:
糖尿病的典型症状是多饮、多尿,而大量的钙、磷矿物质就会随着尿液排除体外,如果此时缺乏必要的钙剂补充,就会造成患者的“钙负平衡”,继而引发一系列的激素水平变化,促使溶骨作用增强,最终导致骨质脱钙、骨质疏松。此外,糖尿病患者体内的活性维生素D水平往往偏低,这会影响钙、磷等矿物质在肠道的吸收。2型糖尿病所特有的胰岛素敏感性下降对于骨骼的破坏更是雪上加霜,它会影响蛋白质的正常代谢,使骨基质合成减少。所有这些因素综合在一起,最终导致糖尿病患者骨基质减少,骨小梁破坏,骨密度降低,成为骨质疏松症发作的高危人群。
骨密度:是骨质量的一个重要标志,反映骨质疏松程度,预测骨折危险性的重要依据。由于测量方法的日益改进和先进软件的开发,使该方法可用于不同部位,测量精度显著提高。除可诊断骨质疏松症之外,尚可用于临床药效观察和流行病学调查,在预测骨质疏松性骨折方面有显著的优越性。

 

摘要
背景:
超过50%的糖尿病患者伴随骨质疏松。运动是治疗糖尿病的主要方法,其是否也对糖尿病骨质疏松的发生产生影响目前尚不明确。
目的:分析不同运动强度与2型糖尿病大鼠模型骨密度变化。
方法:将40只大鼠随机等分为模型组和低、中、高强度运动组,所有大鼠均采用一次性腹腔注射链脲佐菌素建立2型糖尿病模型。低、中、高强度运动组分别进行10,20,30 m/min的跑台训练,1 h/d,6 d为一个周期,每周期训练结束后休息1 d,连续运动8个周期。而模型组不进行运动训练。
结果与结论:与模型组相比,低、中、高强度运动组大鼠体质量减轻,血糖水平下降,骨钙素、血钙水平以及股骨生物力学指标增加,血磷和碱性磷酸酶降低,且中、高强度运动组大鼠骨密度增加。提示不同运动强度都对2型糖尿病大鼠模型骨密度和骨代谢具有一定的影响。采用运动方法治疗时采取适当的体育运动能提高血清骨钙素含量,改善骨代谢状况,更好的预防糖尿病骨质疏松症,具有较高的临床应用价值。

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
ORCID:
0000-0002-8091-0914(江洪)

关键词: 实验动物, 骨软骨损伤与修复动物模型, 运动强度, 2型糖尿病, 骨密度, 骨质疏松症, 骨钙素, 生物力学, 骨代谢

Abstract:

BACKGROUND: More than 50% of patients with diabetes are accompanied by osteoporosis. Exercise is the main method to treat diabetes, but whether it has an impact on diabetes osteoporosis is unclear.
OBJECTIVE: To analyze the different exercise intensities and changes in bone mineral density in type 2 diabetic rat models.
METHODS: Forty rats were randomly divided into model group and low-, medium- and high-intensity exercise groups. All rats received intraperitoneal injection of streptozotocin to establish models of type 2 diabetes. Rats in the low-, medium- and high-intensity exercise groups did treadmill training at 10, 20, 30 m/min, 1 hour per day, 6 days as a cycle. They had a rest for 1 day after each cycle, for 8 consecutive cycles. Rats in the model group did not do any exercise.
RESULTS AND CONCLUSION: Compared with the model group, the weight of rats was decreased; blood glucose levels were reduced; osteocalcin and serum calcium levels and biomechanical indexes of femur increased; serum phosphorus and alkaline phosphatase decreased in the low-, medium- and high-intensity exercise groups. Bone mineral density increased in the medium- and high-intensity exercise groups. These findings confirmed that different exercise intensities have a certain influence on bone mineral density and bone metabolism in type 2 diabetic rat models. When using a method of treating movement, proper physical exercise can increase serum osteocalcin content, improve bone metabolism, prevent diabetic osteoporosis, and have a high clinical value.

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: Diabetes Mellitus, Osteoporosis, Tissue Engineering

中图分类号: