室内空气传播细菌群体和成人肺部健康:一个横截面研究
Hesham Amin1, Christine Cramer2, Kai Finster3
1Department of Clinical Science, University of Bergen, Bergen, Norway.
概括
室内细菌对男性和女性的呼吸系统健康有不同的影响. 更高的细菌多样性改善了男性的肺功能,而女性则表现出更高的多样性和内毒素暴露的呼吸道炎症增加.
科学领域:
- 环境微生物学环境微生物学
- 人的呼吸系统健康 人的呼吸系统健康
- 性别特定的健康结果.
背景情况:
- 室内微生物暴露显著影响呼吸系统健康.
- 了解对空气传播细菌的性别特异反应对于公共卫生至关重要.
- 以前的研究还没有完全阐明这些基于性别的差异.
研究的目的:
- 调查室内空气传播细菌和呼吸道健康指标之间的性别特定关联.
- 分析细菌群落,肺功能和成年男性和女性呼吸道炎症之间的关系.
- 为了确定与差异性呼吸反应相关的特定细菌种群.
主要方法:
- 收集了来自北欧五个城市的1038名成年人的空气中的尘埃样本 (欧洲共同体呼吸系统健康调查III).
- 使用16S rRNA amplicon测序对细菌群落进行了分析.
- 分别使用qPCR和LAL试验量化细菌和内毒素负载.
- 采用按性别分层的多变量线性回归模型来评估与肺功能和呼吸道炎症 (FeNO) 的关联.
主要成果:
- 室内细菌多样性的增加与男性更高的肺功能 (FEV1) 相相关.
- 更高的细菌多样性和内毒素负载与女性呼吸道炎症 (FeNO) 的增加有关.
- 特定的细菌系显示出不同的关联:Actinobacteriota和Bacilli与更好的肺功能相关,Clostridia与较差的肺功能和减少的FeNO相关,Actinobacteriota/Gammaproteobacteria与增加的FeNO相关.
结论:
- 室内细菌暴露与呼吸系统健康有关的性别特异性模式.
- 微生物组成在塑造成人肺部健康方面发挥着关键作用.
- 未来的流行病学研究应该采用性别特定的方法来理解这些复杂的相互作用.
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