胎盘多环芳 (PAH) 水平与自发早产有关
Gwendolynn Hummel1, Sohini Banerjee1, Vasanta Putluri2
1Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, TX 77030, USA.
International journal of molecular sciences
|September 13, 2025
概括
怀孕期间接触多环芳 (PAH) 与早产有关. 胎盘中特定PAH的较高水平与更早的分娩和自发的早产有关,这表明它起到了因果作用.
科学领域:
- 环境健康 环境健康
- 生殖毒理学 生殖毒理学
- 围产期流行病学 围产期流行病学
背景情况:
- 过早分娩 (PTB),在怀孕37周之前的分娩,是全球重要的健康问题.
- 环境化学物质,特别是多环芳 (PAHs) 的环境暴露被怀疑有助于PTB病因.
- 之前的研究表明,母亲暴露于PAH和增加胎盘DNA添加物之间存在联系.
研究的目的:
- 调查特定PAHs的胎盘水平与早产风险之间的关联.
- 探索PAH暴露和自发早产之间的潜在因果关系.
主要方法:
- 使用气体染色学和质谱学 (GC-MS/MS) 来对323名受试者的胎盘组织中甲 (BaP),甲 (BbF) 和二甲 (DBA) 的量化.
- 从早产和到期分娩的胎盘之间PAH水平的比较.
- 胎盘PAH水平与妊娠年龄之间的相关性分析.
- 对PAH水平的分析与自发与医学上指示的PTB相关.
- 在男性和女性怀孕中对PAH水平的性别特异性分析.
主要成果:
- 与满期分娩相比,在过早分娩中观察到更高的胎盘BbF水平 (p = 0.038).
- 胎盘BbF水平与妊娠年龄呈负相关性 (p = 0.002).
- 自发性PTB的胎盘DBA水平明显高于医学上指示的PTB (p = 0.049).
- 胎盘BaP水平在男性怀孕期间明显高于女性怀孕期间 (p = 0.049).
结论:
- 胎盘BbF和DBA水平升高与早产有关,特别是自发性PTB.
- 这些发现表明,在自发早产的病因学中,PAH暴露可能起到潜在的因果作用.
- 在BaP积累中的性别特异性需要进一步调查.
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