年轻男性的亚临床低BMD与受损的骨微型架构和较低的肌肉质量有关
Jenna B Goulart1, Christopher K Kargl1, Adam J Sterczala1
1School of Health and Rehabilitation Sciences, Department of Sports Medicine, University of Pittsburgh, Pittsburgh, PA 15203-2375, USA.
Journal of the Endocrine Society
|February 19, 2026
概括
骨密度较低的年轻人骨结构较差,肌肉质量较少. 这凸显了在年轻成人时期增加瘦肉质量的干预措施的必要性,以减少以后生命中骨折的风险.
科学领域:
- 整形外科 整形外科 整形外科
- 内分泌学 在内分泌学.
- 人类生理学 人类生理学
背景情况:
- 在生命早期优化骨质积累对于减轻与年龄相关的骨折风险至关重要.
- 了解导致年轻人骨质不足的因素对于预防策略至关重要.
研究的目的:
- 在健康的年轻成年男性中,确定与低于预期的面积骨矿物质密度 (aBMD) 相关的因素.
- 为了比较具有较低和正常aBMD的男性之间的骨微观结构,身体成分和相关生物标志物.
主要方法:
- 双能X射线吸收计 (DXA) 评估了39名男性的aBMD和身体组成.
- 高分辨率的外围定量计算断层扫描 (HR-pQCT) 评估了骨质量.
- 与酶相关的免疫吸收剂测定测量了骨循环标记物,激素 (,雌激素,PTH) 和生长因子 (IGF-1,IGFBP-5).
主要成果:
- "较低"的aBMD组 (Z分数<-1.0) 与对照组 (Z分数≥1.0) 相比,年龄较大,身高较低,肌肉质量较少.
- 在较低的组中观察到损害的小腿骨微型结构 (状骨数,分离) 和强度 (刚性,故障负载).
- 下一组表现出较高的性酸酶和较低的胰岛素样生长因子-1 (IGF-1) 度.
结论:
- 具有相对较低aBMD的年轻男性表现出较差的骨微架构和减少的瘦肉量.
- 这些发现强调了在年轻成年期肌肉量积累对于长期骨健康和骨折预防的重要性.
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