有氧运动和颗粒物暴露时间对肠道微生物群多样性的影响
Saba Imdad1,2, Jin-Hee Kim2, Byunghun So1
1Laboratory of Molecular Metabolism in Health & Disease, Sport Science Research Institute, Inha University, Incheon, South Korea.
Animal cells and systems
|April 11, 2024
概括
暴露于颗粒物 (PM) 损害了肠道微生物群的多样性,但运动可以促进有益的细菌. 在小鼠中,联合PM暴露和运动干预揭示了明显的微生物变化,为肠道健康提供了洞察力.
科学领域:
- 环境健康 环境健康
- 微生物学 微生物学
- 运动生理学 运动生理学
背景情况:
- 吸入环境颗粒物 (PM) 会破坏肠道微生物组合.
- 有氧运动通过促进有益细菌独立地影响肠道微生物群.
- 暴露于颗粒物和运动对肠道微生物群的综合影响尚未完全理解.
研究的目的:
- 分析肠道微生物多样性和组成的变化,以应对PM暴露和有氧运动的联合干预.
- 为了研究短期 (3天) 和长期 (12周) 的PM暴露与运动对肠道微生物群的影响.
- 为了确定受这些干预影响的特定微生物种群.
主要方法:
- 小鼠被分为五组:对照组,仅炼,炼后3天暴露在PM中,仅暴露在PM中,以及与跑步机炼同时暴露在PM中.
- 分析了肠道微生物多样性 (α和β多样性) 和组成.
- 进行了差异丰度分析,以确定特定的细菌种群.
主要成果:
- 与对照组相比,暴露于颗粒物显著降低了肠道微生物的α多样性和丰富性.
- 运动干预 (EXE和PME) 导致了Lachnospiraceae家族成员的显著增强.
- 特定的种群如乳杆菌和Desulfovibrionaceae分别在运动和PM组中得到丰富,而PM暴露减少了Bacteroides uniformis和Staphylococcus的丰富性.
结论:
- 结合PM暴露和运动干预措施,导致肠道微生物多样性和组成发生显著变化.
- 运动可以部分减轻对肠道微生物群的PM暴露的一些负面影响.
- 这些发现突出了特定的微生物参与肠道对环境污染物和运动的反应,指导了未来的研究.
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