空气污染物和不良妊娠结果:孟德尔随机化,元分析和动物模型的多方法整合
Wenhan Zhou1, Jiejie Shao1, Juanjuan Huang2
1Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China.
Ecotoxicology and environmental safety
|July 29, 2025
概括
暴露于细颗粒物 (PM$_{2.5}$) 与增加妊娠前风险有因果关系. 减少PM$_{2.5}$暴露对于预防这种妊娠并发症至关重要.
科学领域:
- 环境健康 环境健康
- 生殖流行病学 生殖流行病学
- 毒理学 毒理学 毒理学
背景情况:
- 暴露于空气污染物与不良妊娠结果有关.
- 在空气污染和妊娠并发症之间建立因果关系是具有挑战性的.
研究的目的:
- 调查暴露于特定空气污染物和各种妊娠并发症之间的因果关系.
- 评估颗粒物 (PM$_{2.5}$,PM$_{2.5-10}$) 和氧化 (NO$_{x}$) 对包括妊娠前和早产在内的疾病的影响.
主要方法:
- 综合门德尔随机化 (MR) 使用FinnGen和英国生物库数据与动物实验.
- 评估了PM$_{2.5}$,PM$_{2.5-10}$和NO$_{x}$对7种妊娠并发症的影响.
- 在暴露于PM$_{2.5}$的小鼠中使用了灵敏度分析,两步MR调解和体内验证.
主要成果:
- 在FinnGen队列中,暴露于细颗粒物 (PM$_{2.5}$) 与增加妊娠前风险 (OR:1.421,95% CI:1.066-1.894) 有显著的关联,通过元分析证实了这一点.
- 对于其他评估的妊娠并发症,没有发现显著的关联.
- 暴露于PM$_{2.5}$的小鼠表现出类似孕前的症状和胎盘血管缺陷; CD27被确定为调解者.
结论:
- 这项研究提供了强有力的因果证据,将PM$_{2.5}$暴露与孕前联系起来.
- 综合MR,元分析和动物模型减轻了偏见并加强了研究结果.
- 减少PM$_{2.5}$暴露应该是预防产前的公共卫生优先事项.
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