由电刺激引起的肌肉收缩引起的骨机械应激对骨素分泌的影响
Yi-Chen Chen1, Ryoya Oga1, Takahiro Furumi1
1Department of Sports and Life Science, National Institute of Fitness and Sports in Kanoya, Kanoya 891-2393, Japan.
电刺激诱导的肌肉收缩 (ESMC) 有效地增加了低碳化骨素 (ucOC) 的分泌. 低频ESMC,而不是高频,显著增加了ucOC,突出显示了应变频率对骨健康的重要性.
科学领域:
- 骨生物学和新陈代谢
- 运动生理学 运动生理学
- 生物医学工程 生物医学工程
背景情况:
- 电刺激诱导的肌肉收缩 (ESMC) 提供了生理上的好处.
- 对于ESMC对低碳氧化骨素 (ucOC) 分泌的影响尚不清楚.
- ucOC是一种重要的骨源细胞因子,影响新陈代谢健康.
研究的目的:
- 研究ESMC,骨压力和ucOC分泌之间的关系.
- 为了确定不同电刺激频率对ucOC水平的影响.
- 探索ESMC对ucOC和胰岛素水平的长期影响.
主要方法:
- 在年轻的雄性Fischer 344大鼠身上进行了两项实验.
- 应用了急性和长期的穿皮ESMC (低频[LF]和高频[HF]).
- 测量了骨压力,UCOC和胰岛素水平.
主要成果:
- 急性LF-ESMC在刺激后6小时诱导了ucOC的显著峰值.
- 尽管LF-ESMC的骨压力大小低于HF-ESMC,但LF-ESMC在刺激ucOC方面更有效.
- 长期的ESMC (LF和HF) 导致ucOC的早期增加,与胰岛素水平相关.
结论:
- 由ESMC诱导的骨应变促进了UCOC分泌.
- 骨压力的程度和频率都是调节ucOC分泌的关键因素.
- 欧洲骨质医学研究中心 (ESMC) 提出了一个潜在的治疗策略,用于调节骨代谢和胰岛素敏感性.
更多相关视频
08:11Construction and Use of an Electrical Stimulation Chamber for Enhancing Osteogenic Differentiation in Mesenchymal Stem/Stromal Cells In Vitro
Published on: January 31, 2019
05:03A Fluorescent Intravital Imaging Approach to Study Load-Induced Calcium Signaling Dynamics in Mouse Osteocytes
Published on: February 24, 2023
相关概念视频
Hormones and Bone Tissue
Hormones That Influence Osteoblasts and/or Maintain the Matrix
Several hormones are necessary for controlling bone growth and maintaining the bone matrix. The pituitary gland secretes growth hormone (GH), which, as its name implies, controls bone growth. This happens in several ways: first, it triggers chondrocyte...
Feedback Regulation of Calcium Concentration
Various transmembrane receptors, such as G protein-coupled receptors (GPCRs), elicit a response to extracellular signals by increasing cytosolic calcium. Activated GPCRs...
Muscle Stimulation Frequency
Wave summation
At low firing rates, motor neurons induce individual twitch contractions in muscle fibers. These twitches...
Skeleton and Calcium Homeostasis
Osteoclasts in Bone Remodeling
Relaxation of Skeletal Muscles
When an action potential reaches the axon terminal, it depolarizes the membrane and opens voltage-gated sodium channels. Sodium ions enter the cell, further depolarizing the presynaptic membrane. This depolarization causes voltage-gated calcium channels to open....
