铁和骨:铁过载,缺铁和贫血治疗对骨的影响
Felix N von Brackel1, Ralf Oheim1
1Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, 22529 Hamburg, Germany.
JBMR plus
|July 3, 2024
概括
铁对骨健康的影响在过载和缺乏方面不同. 静脉注射铁可以通过抑制iFGF23裂变而导致酸盐浪费和骨质,这是一个经常被忽视的严重疾病.
科学领域:
- 骨生物学 骨生物学 骨生物学
- 矿物质的新陈代谢.
- 内分泌学 在内分泌学.
背景情况:
- 铁对骨健康至关重要,但缺乏和过载都会对骨产生负面影响. 贫血,通常用静脉注射铁治疗,提出了独特的挑战.
- 铁过载会增加骨质再吸收,并通过活性氧物种 (ROS) 减少骨形成,导致骨质减少和骨折风险.
- 缺铁导致骨周转率低和贫血相关的骨折风险,部分原因是影响骨矿物质密度和肌肉性能.
研究的目的:
- 在各种临床场景中阐明铁对骨代谢的复杂,往往相反的影响.
- 研究铁过载和缺铁影响骨健康的机制.
- 为了强调与特定的静脉注射铁配方相关的低酸性骨质疏松症的未被认可的风险.
主要方法:
- 对有关铁在骨代谢中的作用的现有文献的综述.
- 分析铁过载对骨质细胞和骨质细胞活动的影响.
- 检查缺铁和贫血对骨矿物质密度和相关因素的影响.
- 研究静脉注射铁,iFGF23和酸盐代谢之间的相互作用.
主要成果:
- 铁过载加速骨再吸收,并通过ROS减少骨形成,减少骨质量并增加骨折易受性.
- 缺铁导致骨周转率低和贫血相关的骨折风险,影响骨矿物质密度.
- 静脉注射的铁,特别是铁性碳酸,可以抑制iFGF23的裂变,导致酸盐的浪费和低酸盐性骨.
结论:
- 铁对骨的影响是复杂的,缺乏和过载都会带来风险.
- 用静脉注射铁治疗贫血需要仔细考虑,因为它可能对酸盐代谢产生不良影响.
- 由于受阻iFGF23裂变而导致的低酸性骨质疏松症是某些铁疗法的关键,经常被忽视的并发症.
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