在欧洲祖先的结性脊柱炎和骨关节炎之间的因果关系:双向的门德尔随机化研究
Yangguang Lu1, Di Lu2, Hongzhi Zhang1
1The First School of Medicine, School of Information and Engineering, Wenzhou Medical University, Wenzhou, China.
Frontiers in immunology
|February 21, 2024
概括
结节性脊柱炎 (AS) 与膝盖骨关节炎 (OA) 的风险较低有关,但在欧洲人中增加了手部OA的风险. 在AS和部OA之间没有发现显著的遗传联系,为这些疾病提供了新的见解.
科学领域:
- 风湿病学和遗传学
- 研究炎症性和退行性关节疾病的遗传基础.
背景情况:
- 化脊柱炎 (AS) 和骨关节炎 (OA) 是不同的关节疾病,具有复杂的病因.
- 了解它们在遗传层面的潜在双向因果关系对于开发向疗法至关重要.
研究的目的:
- 在欧洲祖先的个人中探索结性脊柱炎 (AS) 和骨关节炎 (OA) 之间的双向遗传因果关系.
- 确定遗传因素是否使个体倾向于发展两种疾病或影响其进展.
主要方法:
- 两个样本的门德尔随机化 (MR) 分析使用来自大型全基因组关联研究的总结统计数据进行.
- 对AS和OA的仪表变量被严格选择并进行质量控制.
- 为了确保稳定性,使用了敏感性分析,包括异质性测试 (Cochran's Q) 和留出一个方法.
- 贝叶斯协同分析 (COLOC) 用于识别共享的遗传变异.
主要成果:
- 对AS的遗传倾向与膝关节OA风险降低相关 (OR=0.9882),但手部OA风险增加 (OR=1.0026).
- 没有发现AS对关节OA或OA对AS的显著因果作用.
- 灵敏度和多变量MR分析证实了研究结果的可靠性.
- 针对AS和手部OA,确定了四种局部变异.
结论:
- 在欧洲人群中,AS使膝盖骨关节炎的遗传风险降低,手骨关节炎的遗传风险更高.
- 在AS和部OA之间没有显著的双向遗传因果关系.
- 这些发现为AS和OA亚型之间的复杂相互作用提供了新的遗传洞察力.
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