评估线粒体DNA多态和生活方式对脚跟骨矿物质密度的相互作用效应
Dan He1,2,3, Huan Liu1,2,3, Yijing Zhao1,2,3
1Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, Xi'an Jiaotong University, Xi'an, 710061, China.
The Journal of clinical endocrinology and metabolism
|March 27, 2024
概括
线粒体DNA (mtDNA) 和生活方式因素相互作用,影响骨矿物质密度 (BMD),为骨质疏松症的发展提供了新的见解. 这项研究突出了影响BMD的特定mtDNA位置和生活方式相互作用.
科学领域:
- 遗传学和表观遗传学
- 骨生物学 骨生物学 骨生物学
- 线粒体生物学 线粒体生物学
背景情况:
- 骨矿物质密度 (BMD) 对于预测骨质疏松性骨折至关重要.
- 以前的研究将线粒体功能障碍和生活方式因素与BMD独立联系起来.
- 线粒体DNA (mtDNA) 和生活方式对BMD的相互作用影响仍然在很大程度上未被探索.
研究的目的:
- 调查线粒体DNA (mtDNA) 和常见的生活方式因素与骨质疏松症相关的相互作用.
- 为了确定特定的mtDNA位点和影响骨矿物质密度的生活方式成分.
主要方法:
- 分析了119,120名英国生物库参与者与部骨瘤数据的分析.
- 通用线性回归模型评估mtDNA和生活方式相互作用对部BMD (吸烟,饮酒,体力活动,饮食,维生素D) 的影响.
- 门德尔随机化 (MR) 分析,以评估mtDNA复制数 (mtDNA-CN) 和生活方式因素之间的因果关系.
主要成果:
- 确定了4个与部BMD相关的mtDNA位置,包括m.16356T>C (MT-DLOOP).
- 检测到mtDNA位点 (例如MT-ND2,MT-ND1) 和生活方式因素 (体育活动,吸烟) 之间的显著相互作用.
- MT-CYB作为一种与多种生活方式因素相互作用的常见mtDNA位点出现;在考虑mtDNA-CN时,MR分析证实了身体活动对BMD的因果作用.
结论:
- 表明mtDNA和影响部BMD的生活方式因素之间存在显著的相互作用.
- 提供了对骨质疏松症病变的新见解.
- 突出了骨质疏松症预防和治疗的潜在目标,通过考虑遗传和生活方式的因素.
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