循环脂质特征和牙周炎之间的因果关系:单变和多变的门德尔随机化
Gaofu Hu1, Chengjie Song1, Yuxuan Yang1
1Department of Periodontology, The Second Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.
Frontiers in endocrinology
|August 16, 2023
概括
这项研究没有发现任何遗传证据将五种循环脂质特征与牙周炎风险联系起来. 需要对更大的数据集进行进一步的研究,以探索脂症和牙疾病之间的潜在因果关系.
科学领域:
- 遗传学 是一个遗传学.
- 牙周病学 牙周病学
- 心血管健康 心血管健康
背景情况:
- 流行病学研究表明,脱脂症和牙周炎之间存在相关性.
- 混因素往往限制了对这些观测结果的解释.
- 需要像门德尔随机化这样的遗传方法来确定因果关系.
研究的目的:
- 调查循环脂质特征与牙周炎之间的潜在遗传因果关系.
- 使用两个样本的门德尔随机化 (MR) 分析来克服混因素.
- 评估Apolipoprotein A1 (apo A1),Apolipoprotein B (apo B),HDL-C,LDL-C和TG在牙周炎风险中的因果作用.
主要方法:
- 使用英国生物银行脂质数据和GLIDE联盟牙周炎数据进行双样本孟德尔随机化 (MR) 分析.
- 逆方差加权 (IVW) 方法用于一变的MR,并补充了灵敏度分析 (Cochran Q,IGX2,MR-PRESSO,MR-Egger).
- 多变量MR (MVMR-IVW,MVMR-robust) 用于多次暴露,并在一个独立的队列中验证.
主要成果:
- 基因预测的Apolipoprotein A1 (apo A1) 显示出一种潜在的,尽管功率低的,与无变MR中牙周炎风险 (OR=1.158,P=0.040) 的相关性.
- 多变量MR和验证队列分析发现apo A1和牙周炎之间没有显著的因果关系.
- 对于阿波利波蛋白B (apo B),HDL-C,LDL-C或TG与牙周炎风险没有发现显著的因果关系.
结论:
- 这一MR分析没有提供遗传证据支持五个研究的循环脂质特征和牙周炎之间的因果关系.
- 限制包括统计能力和需要更全面的脂质和牙周炎数据.
- 需要进一步研究更大的样本大小和更广泛的脂质配置文件,以澄清失脂血症和牙周炎之间的关系.
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