呼吸道微生物组概况与喘儿童的明显炎症表型和肺功能有关
概括
这项研究在患有喘的儿童中确定了不同的呼吸道微生物群. 一个由Haemophilus和Neisseria主导的集群显示固定气流阻塞,与PD-L1相关,表明新的喘表型.
科学领域:
- 儿科呼吸系统医学 儿科呼吸系统医学
- 微生物组研究的研究.
- 免疫学 免疫学 免疫学
背景情况:
- 喘是一种异质性疾病,受呼吸道微生物群的影响.
- 了解儿童中微生物驱动的喘表型至关重要.
- 之前的研究没有明确定义这些关系.
研究的目的:
- 在患有喘的儿童中识别出不同的呼吸道微生物群.
- 描述这些群体内的主要微生物群.
- 将这些微生物群与临床喘表型和炎症标志物联系起来.
主要方法:
- 从83名患有喘的儿童身上收集的诱导液.
- 16S rRNA基因测序用于微生物组概况.
- 围绕 medoids 聚类和线性歧视效应大小分析进行分区.
主要成果:
- 确定了四个不同的微生物群.
- 集群1 (Haemophilus,Neisseria占主导地位) 显示较低的FEV1/FVC和混合颗粒细胞性喘.
- 尼塞里亚与FEV1/FVC负相关; 血红细胞和尼塞里亚与PD-L1.1正相关.
结论:
- 这是第一个将无偏见的微生物群群与儿科喘中的临床表型联系起来的研究.
- 海莫菲勒斯/尼塞里亚菌群表明固定气流阻塞,与PD-L1.1相关.
- 微生物组驱动的聚类有助于识别儿童的新喘表型和内型.
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