臭氧暴露对口腔微生物群的影响:一项受控,随机,交叉试验
Hao Zhou1, Shuyun Jiang1, Liying Zhang1
1Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China.
Environment & health (Washington, D.C.)
|February 26, 2026
概括
臭氧污染会损害肺功能,减少口腔微生物群的多样性. 急性臭氧暴露显著损害了肺功能和口腔微生物群多样性,Treponema介质可能表明肺功能变化.
科学领域:
- 环境健康 环境健康
- 微生物学 微生物学
- 肺部病理学 肺部病理学
背景情况:
- 环境臭氧污染对人类健康构成风险.
- 微生物组失调与各种健康状况有关.
- 臭氧暴露对人类微生物群的影响尚不清楚.
研究的目的:
- 研究受控臭氧暴露对人类口腔微生物群的影响.
- 分析臭氧暴露,口腔微生物组变化和肺功能之间的关联.
- 为了确定臭氧引起的肺损伤的潜在微生物指标.
主要方法:
- 一个随机的,受控的交叉试验,涉及29名参与者接触过空气和臭氧.
- 采集和16S rRNA测序口腔微生物群样本.
- 使用混合效应模型进行分析,以评估对多样性,组成和肺功能的影响.
主要成果:
- 急性臭氧暴露 (282.2±44ppb) 显著降低了肺功能 (FVC,FEV1,PEF) 和口腔微生物群多样性 (Sobs,Ace,Chao指数).
- 与女性相比,男性对臭氧暴露的敏感性更大.
- 改变的口腔微生物组在代谢途径中得到了丰富,Treponema介质对肺功能障碍表现出显著的调解作用.
结论:
- 控制的臭氧暴露对肺功能和口腔微生物群多样性都有不利影响.
- 菌媒介可以作为臭氧诱导的肺功能变化的敏感生物标志物.
- 这些发现突显了环境污染物,微生物群和呼吸系统健康之间的复杂关系.
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