基于不同种族群体的系统性红斑狼和骨质疏松症之间的关系:两样本的孟德尔随机化分析
1Department of Nuclear Medicine, Hainan Hospital Of PLA General Hospital, 80 Jianglin Road, Sanya, China.
Calcified tissue international
|February 14, 2024
概括
系统性红斑狼 (SLE) 在东亚人中与骨质疏松症 (OP) 有因果关系,但在欧洲人中没有. 门德尔的随机分析证实了这一关联,排除了东亚人口中的反向因果关系和混因素.
科学领域:
- 遗传学 是一个遗传学.
- 类风湿病学 类风湿病学
- 流行病学 流行病学
背景情况:
- 对系统性红斑狼 (SLE) 和骨质疏松症 (OP) 的观察性研究受到混变量和反向因果关系的限制.
- 确定SLE和OP之间的因果关系对于理解疾病机制和开发向治疗至关重要.
研究的目的:
- 使用孟德尔随机化 (MR) 调查东亚和欧洲人群中SLE和OP之间的潜在因果关系.
- 评估双向因果关系,并评估潜在的混因素和性.
主要方法:
- 使用公开可用的全基因组关联研究数据对SLE,OP,骨矿物密度 (BMD) 和骨折的OP进行双样本孟德尔随机化分析.
- 使用反变量加权 (IVW),MR-Egger,加权中位数和加权模式方法进行初级分析.
- 进行敏感性分析,包括MR-PRESSO,MR-Egger拦截,Cochran的Q测试和留出一个的分析,以评估异质性,性和稳定性. 进行了反向MR分析,以检查反向因果关系.
主要成果:
- 在东亚人群中,在基因预测的SLE和OP之间发现了显著的积极因果关系 (IVWOR=1.05,95%CI=1.01-1.09,P=0.009).
- 在东亚队列中没有检测到显著的异质性或水平性.
- 在欧洲人群中没有观察到SLE和OP之间的显著遗传预测因果关系. 反向MR分析表明没有反向因果关系.
结论:
- 基因预测的SLE在东亚人口中对OP产生了积极的因果作用.
- 在欧洲人群中观察到的SLE和OP之间的关联可能受到混变量的影响,因为没有确立因果关系.
- 这项MR研究提供了强有力的证据,证明东亚人与欧洲人不同,SLE和OP之间存在因果关系.
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