中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (16): 2478-2483.doi: 10.3969/j.issn.2095-4344.2017.16.004

• 软骨组织构建 cartilage tissue construction • 上一篇    下一篇

跑台运动干预膝关节软骨全层缺损修复

赵森泉1,毛新润2   

  1. 1河北软件职业技术学院,河北省保定市  071000;2河北医科大学第二附属医院,河北省石家庄市  050000
  • 修回日期:2017-04-22 出版日期:2017-06-08 发布日期:2017-07-06
  • 通讯作者: 毛新润,硕士,主任医师,河北医科大学第二附属医院骨科,河北省石家庄市 050000
  • 作者简介:赵森泉,男,1978年生,河北省保定市人,汉族,2002年河北师范大学毕业,讲师,主要从事体育运动方面的研究。
  • 基金资助:

    2016河北省医学科学研究重点课题计划项目(20160122)

Effect of treadmill exercise on the repair of full-thickness knee cartilage defects

Zhao Sen-quan1, Mao Xin-run2   

  1. 1Hebei Software Institute, Baoding 071000, Hebei Province, China; 2the Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei Province, China
  • Revised:2017-04-22 Online:2017-06-08 Published:2017-07-06
  • Contact: Mao Xin-run, Master, Chief physician, the Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei Province, China
  • About author:Zhao Sen-quan, Lecturer, Hebei Software Institute, Baoding 071000, Hebei Province, China
  • Supported by:

    the Key Medical Research Program of Hebei Province in 2016, No. 20160122

摘要:

文章快速阅读:

文题释义:
膝关节半月板软骨缺损:
膝关节半月是一种月牙状纤维软骨,充填在股骨与胫骨关节间隙内,每个膝关节有两个半月板,内侧半月板与外侧半月板。它们的周围部分较厚,附着于胫骨平台的边缘而中央部分则较薄,其接触股骨髁的上面略凹陷而接触胫骨髁的下面则平坦,膝关节半月板中内分无血液供应区,其营养主要来自滑液,只有与胫骨缘连接的边缘部分能从滑膜得到血液供应。
软骨细胞:幼稚的软骨细胞位于软骨组织的表层,单个分布,体积较小,呈椭圆形,长轴与软骨表面平行,越向深层的软骨细胞体积之间增大呈圆形,细胞核圆形或卵圆形,染色浅,细胞质弱嗜碱性,常见数量不一的脂滴。成熟的软骨细胞多2-8个成群分布于软骨陷窝内,这些软骨细胞由同一个母细胞分裂增殖而成,称为同源细胞群。

 

摘要
背景:
关节软骨位置特殊,其功能常会受到运动的影响,通过关节运动能促进缺损部位修复,但是该结论尚未得到进一步证实。
目的:探讨跑台运动时不同运动强度对大鼠膝关节软骨全层缺损修复效果。
方法:将40只大鼠用直径3.2 mm的骨科手术电钻在股骨面制作一个直径3.2 mm的全层软骨缺损模型,然后随机分为模型组、低强度运动组、中强度运动组和高强度运动组,各10只。模型组仅在笼内自由活动,低强度运动组在平面进行运动,平台速度8.2 m/min;中强度运动组跑台坡度设置成5°,速度控制在15.5 m/min;高强度运动组设置跑台高度10°,速度控制在26.7 m/min。
结果与结论:①跑台运动8周后,低、中、高强度运动强度组大鼠血清基质金属蛋白酶3、基质金属蛋白酶抑制剂浓度均低于模型组(P < 0.05),且中强度运动组大鼠血清基质金属蛋白酶3、基质金属蛋白酶抑制剂浓度低于低、高强度运动强度组(P < 0.05);②中强度运动组关节软骨全层缺损区可见纤维组织,且与相邻正常关节软骨连接,厚度基本,修复效果明显优于其他3组。③提示中等强度跑台运动能促进大鼠膝关节软骨全层缺损修复,提高关节功能。

 

 

ORCID:0000-0002-5224-8732(毛新润)

关键词: 组织构建, 软骨组织工程, 软骨缺损, 跑台运动, 膝关节软骨, 基质金属蛋白酶3, 关节功能, 全层软骨缺损模型, 纤维细胞

Abstract:

BACKGROUND: As the articular cartilage has a special anatomical position, its function is often affected by movement. Whether exercise training can promote the cartilage repair still needs to be confirmed.
OBJECTIVE: To investigate the effects of different intensities of treadmill exercises on the repair of full-thickness articular cartilage defects in rats.
METHODS: Forty rats were selected, and the models of full-thickness articular cartilage defects (3.2 mm in diameter) on the femoral surface were made with a orthopedic drill, followed by randomized into model, low-, moderate- and high-intensity exercise groups (n=10 per group). The rats in the model group were allowed free cage activity. The rats in the low-intensity exercise group exercised on the platform, and the platform speed was 8.2 m/min; rats in the middle-intensity exercise group exercised on the 5° treadmill, and the speed was controlled at 15.5 m/min; rats in the high-intensity exercise group exercised on the 10° treadmill, and the speed was controlled at 26.7 m/min.
RESULTS AND CONCLUSION: The levels of serum matrix metalloproteinase-3 and inhibitor of matrix metalloproteinase in the latter three groups were significantly lower than those in the model group at 8 weeks after exercise (P < 0.05), and the level was the lowest in the moderate-intensity exercise group (P < 0.05). In the moderate-intensity exercise group, there were fibrous tissues in the defect area, which were connected with the adjacent cartilage, and the repair effect was superior to that in the other three groups. To conclude, moderate-intensity treadmill exercise can promote the repair of full-thickness knee cartilage defects in rats, thereby improving functional recovery of the rat knee joint.

 

 

Key words: Chondrocytes, Knee Joint, Cartilage, Articular, Tissue Engineering

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