多环芳暴露对肠道微生物组合和炎症反应的影响
Song Hee Jeong1, Jaejoon Jung2, Young-Jun Park3
1Department of Systems Biotechnology, and Institute of Microbiomics, Chung-Ang University, Anseong 17546, Republic of Korea.
Ecotoxicology and environmental safety
|August 23, 2025
概括
暴露于颗粒物中的多环芳 (PAH) 会导致持续的肠道炎症并改变小鼠的微生物群. 这些效应甚至在暴露停止后也持续存在,突出 PM
科学领域:
- 环境健康
- 胃肠病学
- 微生物组研究
背景情况:
- 颗粒物与肠道疾病,如炎症性肠道疾病有关.
- 聚环芳 (PAHs) 是一个关键的PM成分,其对肠道健康的具体影响尚不清楚.
研究的目的:
- 研究PM10提取的PAH对小鼠肠道炎症和肠道微生物组合的影响.
- 确定这些影响在暴露停止后是否可逆.
主要方法:
- 在不同的时间内暴露在PM10提取的PAH中.
- 分析了结肠和肺组织的损伤和炎症性细胞因子水平.
- 使用16S rRNA测序来评估肠道微生物群的组成.
主要成果:
- 暴露于PM10-PAHs会加剧结肠和肺组织损伤,并增加炎症性细胞因子分泌.
- 观察到肠道微生物群的显著变化,包括类和属水平的变化.
- 暴露后的微生物组成和炎症标志物没有完全恢复,这表明持续的影响.
结论:
- 在小鼠中诱导显著和持久的肠道炎症和失活性.
- 这些发现突显了暴露在颗粒物中可能带来长期不良健康后果.
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