PM2.5的塑料添加剂成分增加了纠正的QT间隔:基于空气中暴露基的暴露标志物的查
Xiaotu Liu1, Yanwen Wang2, Jianlong Fang2
1School of Environment and Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou 511443, China.
PNAS nexus
|December 4, 2023
概括
微粒 (PM2.5) 中的空气中的塑料添加剂 (PA) 与心率校正的QT (QTc) 间隔延长有关,这表明心血管风险. 这项研究确定了特定的PA作为这些影响的关键暴露标志物.
科学领域:
- 环境健康 环境健康
- 心血管毒理学心血管毒理学
- 空气污染研究研究
背景情况:
- 环境微粒 (PM2.5) 中的工业化学成分对心血管健康的影响仍未得到充分研究.
- 塑料添加剂 (PAs) 是普遍存在的工业化学品,但它们与心脏电生理学的关联尚未得到充分理解.
研究的目的:
- 为了研究人类暴露于复杂塑料添加剂 (PA) PM2.5成分和心率校正的QT (QTc) 间隔延长之间的联系.
- 识别特定的PA作为心血管风险暴露标志物的特定PA.
主要方法:
- 采用了查到验证的策略,使用了中国7个社区的373名参与者的队列.
- 利用高通量空中暴露基因框架检测PM2.5.5中的224个目标PA中的95个.
- 分析了PA暴露水平和QTc间隔延长之间的关联,包括联合和独立效应分析.
主要成果:
- 在PM2.5中普遍存在95个目标PA,其度范围从66.3到555 ng/m3.
- 13个PA组中的9个PA组的联合效应显示出与QTc间隔延长的积极关联.
- 鉴定并验证了三二二酸,二二/二二酸和3.5三二-4基甲作为关键的暴露标志物.
结论:
- 空气中的工业化学物质,特别是PM2.5中的PA,对心血管疾病风险有很大影响.
- 这些发现强调需要进一步研究与这些化学物质相关的机制,毒理作用模式和人类暴露风险.
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