生殖因素和女性骨密度之间的因果关系:一个单变体和多变体的门德尔随机化研究
Xiaojing Lin1, Yaqi Zuo1, Hongbo Hu2
1Guangdong Medical University, Zhanjiang, China.
Frontiers in genetics
|September 30, 2024
概括
诸如更年期年龄等生殖因素对女性的骨密度有显著影响. 早期更年期和晚期分娩与骨密度下降有关,为骨质疏松症预防策略提供了信息.
科学领域:
- 生殖内分泌学和骨代谢的生殖内分泌学.
- 遗传流行病学遗传流行病学
- 骨质疏松症的研究研究.
背景情况:
- 观察性研究表明,女性生殖因素与骨密度之间存在联系.
- 生殖因素和骨矿物质密度 (BMD) 之间的因果关系尚不清楚.
- 门德尔随机化 (MR) 提供了一种研究因果关系的方法.
研究的目的:
- 研究关键生殖因素和各种骨部位的BMD之间的因果关系.
- 使用单变量和多变量门德尔随机化 (MR) 方法.
- 为了确定可预测骨密度下降的生殖因素.
主要方法:
- 采用单变量和多变量两样 MR 分析.
- 利用来自大型全基因组关联研究 (GWAS) 的数据.
- 分析了四个生殖因素:初潮时的年龄 (AAM),第一次活产时的年龄 (AFB),更年期时的年龄 (ANM) 和最后一次活产时的年龄 (ALB).
- 评估了五个骨部位的BMD:脚跟,超距前臂 (FA-BMD),腰椎 (LS-BMD) 和大腿部.
主要成果:
- 不变的MR揭示了因果关系:AAM影响了BMD和脚BMD;AFB与FA-BMD负相关;ALB与BMD和脚BMD负相关;ANM与BMD,脚BMD,FA-BMD和LS-BMD正相关.
- 多变量MR证实ANM在不同地点与BMD的持续关联.
- 多变量MR还表明ALB和脚骨BMD之间存在负相关性.
结论:
- 生殖因素,特别是更年期的年龄和最后一次活产的年龄,与骨密度有因果关系.
- 早期更年期和晚期分娩是女性骨密度下降的重要预测因素.
- 建议将生殖因子评估纳入骨质疏松症查和管理方案,以加强临床指导.
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