MASLD和MASH通过阻止新的骨形成,增加了人类和小鼠的骨折风险
Research square
|December 8, 2025
概括
与代谢功能障碍相关的脂肪性肝病 (MASLD) 增加骨折风险,特别是在51岁以上的人群中. 这项研究揭示了MASLD的骨损失机制,将其确定为重要的骨折风险因素.
科学领域:
- 肝病学 肝病学是一种肝病学.
- 骨生物学 骨生物学 骨生物学
- 代谢疾病 代谢疾病
背景情况:
- 与代谢功能障碍相关的脂肪性肝病 (MASLD) 越来越普遍.
- 早期的观察表明,MASLD与骨折风险增加之间存在联系.
- 确切的风险和潜在机制仍然不清楚.
研究的目的:
- 量化患有MASLD的个体中骨折风险.
- 阐明在MASLD中导致骨损失的生物学机制.
- 为了确定患骨折风险较高的特定子群体.
主要方法:
- 利用 TriNetX 美国协作数据库进行人类队列分析.
- 员工倾向性得分匹配,将MASLD患者与对照进行比较.
- 在NAFLD (DIAMONDTM) 的饮食诱导小鼠模型中研究了骨健康和基因表达.
主要成果:
- 患有MASLD的51岁以上的个体表现出所有骨折和病理骨折的风险明显更高.
- 接受MASLD治疗的DiamondTM小鼠表现出骨厚度,强度和骨形成的降低,并增加了再吸收.
- MASLD与参与骨代谢的关键基因的改变表达有关,包括肝脏IGF1,CYP2R1,FGF21,CTGF,ANXA2和骨BGLAP,RUNX2,POSTN,PPARG.
结论:
- MASLD已被确立为骨折的独立风险因素.
- 血清FGF21的增加,与骨代谢受损有关,是提出的一种机制.
- 这些发现凸显了MASLD对骨健康和骨折风险的系统影响.
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