内分泌干扰化学物质在青春期定时的因果作用:孟德尔的随机化研究
Melody Zuo1, Isabel Gamache1, Kaossarath Fagbemi1
1Research Center of the Sainte-Justine University Hospital, Université de Montréal, Montreal, QC, Canada.
概括
这项研究使用了门德尔的随机化来研究内分泌干扰化学物质 (EDC) 对青春期时间的因果作用. 特定的多二 (PCB) 和二甲酸 (DBP) 与初潮时的年龄有关,而双A (BPA) 则影响了声音变化的年龄.
科学领域:
- 环境健康 环境健康
- 内分泌学 在内分泌学.
- 遗传学 是一个遗传学.
背景情况:
- 内分泌干扰化学物质 (EDC) 与改变青春期时间有关,但因果关系尚不清楚.
- 青春期的时间定义为女孩初潮时的年龄 (AAM) 和男孩语音变化的年龄 (AVC).
- 调查EDCs在青春期时间中的因果作用对于公共卫生至关重要.
研究的目的:
- 为了确定基因改变的血清EDC水平是否因果影响青春期时间 (AAM和AVC).
- 探索身体质量指数 (BMI) 在这些关联中的潜在调解作用.
主要方法:
- 单变门德尔随机化 (MR) 用于评估22个EDC与AAM和AVC对比.
- 使用了EDC,AAM和AVC的全基因组关联研究 (GWAS) 数据.
- 多变量MR (MVMR) 和两步MR检查了BMI调度.
主要成果:
- 在特定的多双 (PCB) 和AAM之间发现了因果关联.
- 双甲酸 (DBP) 显示与AAM有因果关系,双甲 (BPA) 与AVC有因果关系.
- 身体质量指数 (BMI) 被确定为EDC-青春期时间关联的潜在调解者.
结论:
- 特定的PCB暴露会导致较早的AAM;DBP暴露会延迟AAM.
- 暴露于BPA与早期的AVC有关,BMI可能会调解这种效应.
- 这些发现为EDC对青春期时间的影响提供了因果关系证据.
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