通过Mendelian随机化研究,研究血清ADAM/ADAMTS水平与骨矿物质密度之间的关联
Xin Lv1, Yuhong Lin2, Zhilei Zhang1
1Department of Orthopedics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, 107 Yanjiang West Road, Guangzhou, 510120, China.
BMC genomics
|July 19, 2023
概括
较高的ADAMTS5血清水平可能会导致脚骨矿物质密度 (BMD) 的降低. 这项孟德尔随机化研究发现,其他ADAM/ADAMTS蛋白与前臂,大腿或腰椎的BMD之间没有因果关系.
科学领域:
- 遗传学 遗传学 是一个
- 骨的新陈代谢 骨的新陈代谢
- 生物化学 生物化学
背景情况:
- 分解蛋白和甲蛋白酶 (ADAM) 和ADAM与血栓松动因子 (ADAMTS) 蛋白与骨代谢和骨矿物质密度 (BMD) 有关.
- 门德尔随机化 (MR) 是一种通过使用遗传变异作为工具变量来推断因果关系的方法,最大限度地减少混因素.
研究的目的:
- 调查在不同骨部位的特定ADAM和ADAMTS蛋白质和BMD血清水平之间的潜在因果关系.
- 区分直接的因果关系和纯粹的相关性,从而澄清这些蛋白质在骨健康中的作用.
主要方法:
- 利用来自欧洲大型祖先队伍的BMD全基因组总结统计数据 (前臂,大腿部部,腰椎,脚跟).
- 从全基因组关联研究中使用了血清ADAM12,ADAM19,ADAM23,ADAMTS5和ADAMTS6的遗传仪器变量.
- 应用反变量加权 (IVW) 作为主要的MR分析,并补充了灵敏度分析以确保结果的稳定性.
- 使用邦费罗尼校正 (P < 0.0025) 严格显著性,P < 0.05被认为是暗示性的.
主要成果:
- 核磁共振分析没有支持基因预测血清ADAM12,ADAM19,ADAM23或ADAMTS6对前臂,大腿或腰椎骨质硬化造成的因果影响.
- 观察到ADAMTS5对部BMD的潜在因果作用 (β = -0.006),尽管它没有达到Bonferroni校正的显著性值 (P = 0.004).
- 进一步的MR方法和灵敏度分析证实了ADAMTS5和脚BMD之间强有力的,尽管暗示性的,反向因果关系.
结论:
- 暗示性证据表明,较高的血清ADAMTS5水平在减少部BMD方面起着因果作用.
- 在研究的欧洲人群中,没有发现ADAM12,ADAM19,ADAM23和ADAMTS6的血清水平与前臂,大腿或腰椎的BMD之间的因果关系.
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