中国组织工程研究 ›› 2019, Vol. 23 ›› Issue (34): 5550-5557.doi: 10.3969/j.issn.2095-4344.1441

• 生物材料综述 biomaterial review • 上一篇    下一篇

跳跃冲击诱导核因子κB对骨质代谢的调节机制及效果分析

闫平平1,王  坤2,罗  炯2
  

  1. 1重庆医科大学,重庆市  400016;2西南大学体育学院运动戒毒研究中心,重庆市  400715
  • 收稿日期:2019-04-15 出版日期:2019-12-08 发布日期:2019-12-08
  • 作者简介:闫平平,女,1990年生,河南省许昌市人,汉族,2016年西南大学毕业,硕士,讲师,主要从事体育教学训练理论与方法的研究。
  • 基金资助:

    重庆医科大学体育医学学院课题(TY2018 01),项目负责人:闫平平

Regulation mechanism and effect of jump shock-induced nuclear factor kappaB on bone metabolism

Yan Pingping1, Wang Kun2, Luo Jiong2
  

  1. 1Chongqing Medical University, Chongqing 400016, China; 2Research center for Exercise Detoxification, College of Physical Education, Southwest University, Chongqing 400715, China
  • Received:2019-04-15 Online:2019-12-08 Published:2019-12-08
  • About author:Yan Pingping, Master, Lecturer, Chongqing Medical University, Chongqing 400016, China
  • Supported by:

    Chongqing Medical University School of Physical Education Program, No. TY2018 01 (to YPP)

摘要:

文章快速阅读:

 

文题释义:
机械性负荷:骨骼承受运动所引发的机械性负荷会刺激骨增生作用,进而提升局部骨骼的骨密度、骨质含量及组织生物力学特性。骨骼因此对日常生活所必须承受的冲击或意外冲击的适应性提高,从而使得骨折的发生率大为降低;而跳跃冲击动作包含于多数身体活动及运动训练专项之中,可引起强烈的机械性负荷去刺激骨的生成。
核因子κB:适当的运动能增加骨质密度,反之,运动不适会造成骨面磨损而无法增进骨密度。运动对骨质代谢的调节是借助核因子κB传递信号通路进行的,其中核因子κB是破骨细胞分化与活化过程重要的中间传递蛋白,它在炎症反应与骨骼代谢平衡过程扮演着关键角色,通过核因子κB信号通路刺激下游信号蛋白的传递,调控先天免疫细胞活化、淋巴球活化、树突细胞成熟与炎症症状等。
 
 
背景:骨质疏松症是近年来致力于预防医学的一个重要议题,运动介入对于骨质健康扮演积极的关键角色。但不同运动类型对个体骨质含量及骨密度的影响存有显著差异,厘清这些差异的原因及其相关机制很有必要。
目的:针对跳跃冲击诱发核因子κB信号通路变化从而影响骨质代谢的调控机制进行分析,从而为运动介入提高骨质代谢效率及预防骨质疏松等代谢性疾病提供理论基础及实践参考。
方法:利用ELSEVIER,Springer,EBSCO,CNKI,万方数据、维普中文期刊服务平台以及台湾学术文献等数据库;以“跳跃冲击、发炎反应、跳跃运动、机械性负荷、骨质疏松症、骨代谢、骨重塑、骨质密度、运动训练、抗阻训练、冲击性训练、核因子-κB”及对应英文词组等搜寻相关文献,检索2018年12月前发表的文献。
结果与结论:跳跃冲击动作能引起强烈机械性负荷刺激,它对整体腿部骨骼及受力较显著区域的骨质含量及骨密度皆有明显效果;跳跃冲击能提高身体内核因子κB的活化阈值,冲击载荷的地面反作用力对肌肉与骨骼所产生的损伤而诱发核因子κB的活化,不仅促使体内炎症反应,亦促使组织新生,以适应外在冲击变化;骨质代谢与炎症反应两者间是否通过核因子κB作为重要连结因子,将对骨疾病治疗产生重大影响,亦可借运动对核因子κB所产生的适应性,降低核因子κB于体内的活化,达到降低炎症反应与骨吸收功能。提示足够强度的跳跃冲击对局部骨骼产生显着的骨生成促进作用,除了增加局部骨密度与骨质含量,同时也会增进骨骼组织的生物力学特性;跳跃冲击诱发炎症反应可能与核因子κB信号通路高度相关,并借此影响单核球的分化与细胞融合,从而操控运动过程中的骨代谢走向。

关键词: 跳跃运动, 机械性负荷, 骨质疏松症, 骨代谢, 骨重塑, 骨质密度, 运动训练, 抗阻训练, 冲击性训练, 组织工程

Abstract:

BACKGROUND: Osteoporosis is an important topic in preventive medicine in recent years. Sports intervention plays an active and key role in bone health. However, there are significant differences in the effects of different types of exercise on individual bone content and bone mineral density. It is necessary to clarify the causes of these differences and their related mechanisms.
OBJECTIVE: To analyze the regulatory mechanism of jump shock-induced changes in nuclear factor-κB pathway which affects bone metabolism, so as to provide theoretical basis and practical reference for exercise intervention to improve bone metabolism efficiency and prevent metabolic diseases such as osteoporosis.
METHODS: A computer-based online search of ELSEVIER, Springer, EBSCO, CNKI, Wanfang database, Vip and other databases to retrieve relevant literatures with the search terms “jumping impact, inflammatory response, jumping exercise, mechanical load, osteoporosis, bone metabolism, bone remodeling, bone mineral density, exercise training, resistance training, impact training, nuclear factor-κB" in Chinese and English published before December 2018.
RESULTS AND CONCLUSION: Jumping impact can induce strong mechanical load to stimulate bone formation. Jumping exercise has a significant effect on bone content and bone density in the whole leg bone and the area under significant stress. Jumping impact can increase the activation threshold of nuclear factor-κB in the body. The injury of muscle and bone caused by impact load ground reaction forces can induce the activation of nuclear factor-κB, which not only promotes the development of inflammatory response, but also promotes tissue regeneration to adapt to changes in external shocks. Whether bone metabolism and inflammation are linked by NF-κB will greatly affect the treatment of bone diseases. Exercise will reduce the activation of NF-κB, and then reduce inflammatory response and bone resorption. These findings suggest that sufficient intensity of jump impact can greatly promote local bone formation. Besides increasing local bone mineral density and bone content, it can also improve the biomechanical properties of bone tissue. According to the known evidence, jump impact-induced inflammatory response may be highly correlated with the NF-κB pathway, thereby affecting the mononuclear differentiation and cell fusion, and controlling the trend of bone metabolism during exericise.

Key words: jumping exercise, mechanical load, osteoporosis, bone metabolism, bone remodeling, bone mineral density, sports training, resistance training, impact training, tissue Engineering

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