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Effects of Iron Overload and Oxidative Damage on the Musculoskeletal System in the Space Environment: Data from Spaceflights and Ground-Based Simulation Models

机译:铁超载和氧化损伤对空间环境中骨骼肌肉系统的影响:来自航天和地面模拟模型的数据

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摘要

The space environment chiefly includes microgravity and radiation, which seriously threatens the health of astronauts. Bone loss and muscle atrophy are the two most significant changes in mammals after long-term residency in space. In this review, we summarized current understanding of the effects of microgravity and radiation on the musculoskeletal system and discussed the corresponding mechanisms that are related to iron overload and oxidative damage. Furthermore, we enumerated some countermeasures that have a therapeutic potential for bone loss and muscle atrophy through using iron chelators and antioxidants. Future studies for better understanding the mechanism of iron and redox homeostasis imbalance induced by the space environment and developing the countermeasures against iron overload and oxidative damage consequently may facilitate human to travel more safely in space.
机译:太空环境主要包括微重力和辐射,这严重威胁了宇航员的健康。在太空中长期居住后,骨骼丢失和肌肉萎缩是哺乳动物的两个最重要的变化。在这篇综述中,我们总结了当前对微重力和辐射对肌肉骨骼系统影响的理解,并讨论了与铁超载和氧化损伤有关的相应机制。此外,我们列举了一些通过使用铁螯合剂和抗氧化剂对骨质流失和肌肉萎缩具有治疗潜力的对策。为了更好地了解太空环境引起的铁和氧化还原稳态失衡的机理以及制定针对铁超载和氧化损伤的对策的未来研究,可能有助于人类在太空中更安全地旅行。

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