微生物组分析揭示了与艾滋病毒感染者的肺功能快速下降相关的肠道细菌物种
Xiangning Bai1,2,3, Sajan C Raju3,4, Andreas Dehlbæk Knudsen5
1Department of Microbiology, Division of Laboratory Medicine, Oslo University Hospital, Oslo, Norway.
艾滋病毒感染者肺部健康状况恶化,与肠道微生物组变化有关. 在这种人群中,特定的细菌和肠道失调指数与更快的肺功能下降和空气流量限制有关.
科学领域:
- 微生物组研究的研究.
- 肺部医学 肺部医学
- 艾滋病毒/艾滋病研究研究
背景情况:
- 艾滋病毒感染者 (PWH) 的肺部疾病发病率更高.
- 肠道微生物群影响免疫力,并且在PWH中发生变化.
- 了解PWH的肠肺轴对于管理并发症至关重要.
研究的目的:
- 调查肠道微生物组组成和PWH.肺功能下降之间的关联.
- 为了确定与PWH中空气流量限制相关的特定细菌物种.
主要方法:
- 在COCOMO研究中,利用了枪式元基因组测序来分析385个PWH的肠道微生物组数据.
- 采用多变量逻辑回归来评估微生物组特征与肺功能下降/气流限制之间的联系.
- 对肺部疾病的传统和艾滋病毒特异性风险因素进行调整分析.
主要成果:
- 机会性病原体如*Bacteroides coprophilus*,*Klebsiella michiganensis*和*Clostridium perfringens*的丰富,在PWH中观察到肺功能迅速下降.
- 肠道失调指数与肺功能迅速下降 (aOR 1.18) 和空气流量限制 (aOR 1.16) 有显著的相关性.
结论:
- 肠道微生物组失调与PWH中加速的肺功能下降和空气流量限制有关.
- 特定的肠道细菌物种可能会导致艾滋病毒感染者发展肺部并发症.
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