空气污染代谢特征和慢性呼吸道疾病风险:一个纵向研究
Bingting Zhuo1, Shanshan Ran1, Aaron M Qian2
1Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong, China.
空气污染暴露与慢性呼吸道疾病 (CRD) 风险有关. 这项研究确定了与空气污染相关的特定代谢特征,揭示了炎症和红细胞标记物作为关键调解物.
科学领域:
- 环境健康 环境健康
- 代谢学 代谢学 代谢学
- 呼吸系统医学 呼吸系统医学
背景情况:
- 环境空气污染是慢性呼吸道疾病 (CRD) 和肺功能受损的已知危险因素.
- 将空气污染暴露与CRD相关联的特定代谢途径和机制在很大程度上仍未被描述.
研究的目的:
- 调查空气污染暴露与代谢特征之间的关系.
- 确定这些代谢特征如何与患CRD的风险,呼吸系统症状和肺功能有关.
- 探索潜在的代谢机制,包括炎症和红细胞相关的途径.
主要方法:
- 利用了来自171,132名没有COPD或喘的参与者的英国生物库数据.
- 评估了使用住宅历史的PM2.5,PM10,NOx和NO2的长期暴露.
- 采用弹性净回归来识别与空气污染相关的代谢物和Cox模型来将代谢特征与CRD风险联系起来.
- 进行调解和途径分析以阐明代谢机制.
主要成果:
- 暴露于空气污染,特别是PM2.5,与CRD风险增加有显著的关联.
- 确定了各种空气污染物的独特代谢特征 (例如,PM2.5的103种代谢物).
- 代谢特征与CRD风险有很强的相关性,炎症和红细胞标记物调解这些关联.
- 发现乱的代谢途径,包括能量和氨基酸代谢,与PM2.5和NOx暴露有关.
结论:
- 这项研究成功地确定了与环境空气污染暴露相关的特定代谢特征.
- 这些特征与慢性呼吸道疾病的风险增加有显著联系.
- 炎症和红细胞相关的标志物在空气污染引起的代谢变化与CRD发展之间的关系中发挥着部分调解作用.
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