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液微生物群和喘,COPD中的炎症亚型及其重叠
Chie Morimoto1, Hisako Matsumoto1,2, Natsuko Nomura1
1Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
The journal of allergy and clinical immunology. Global
|December 29, 2023
概括
在喘-COPD重叠 (ACO) 中的气道微生物群与COPD不同,较低的Bacteroidia和Porphyromonas与较少的eosinophilic炎症有关. 在轻度埃索诺菲尔性疾病中血的存在需要注意管理呼吸道阻塞状况.
科学领域:
- 肺部医学 肺部医学
- 微生物学 微生物学
- 免疫学 免疫学 免疫学
背景情况:
- 在喘-COPD重叠 (ACO) 中的呼吸道微生物群组成尚未得到充分理解.
- ACO的特点是喘和慢性阻塞性肺病 (COPD) 的重叠症状.
- 在ACO和其他慢性呼吸道疾病中经常观察到混合颗粒细胞性炎症.
研究的目的:
- 为了调查和澄清 ACO.CO.患者的气道微生物群.
- 为了将ACO中的呼吸道微生物群与喘和COPD进行比较.
- 探索气道微生物群与炎症特征之间的关系,特别是异氨酸性炎症.
主要方法:
- 采用了观察性,横截面的研究设计.
- 纳入了112名患者:13名患有喘,67名患有ACO,32名患有COPD.
- 使用16S rRNA基因测序分析液微生物群,并进行临床评估.
主要成果:
- 在喘,ACO和COPD中没有发现呼吸道微生物群的α-多样性的显著差异.
- 与COPD相比,在ACO中观察到较少的Bacteroidetes,Bacteroidia和Porphyromonas,与减少的eosinophilic炎症相关.
- 血球菌的比例在混合粒细胞性炎症中最高,并与唾液症状相关,而链球菌与更高的血红蛋白和严重的空气流量限制相关.
结论:
- 唾液中细菌类和菌类的数量减少可能是ACO的特征,并且与低乙氨基基酸表型有关.
- 在温和的唾液中存在Haemophilus的eosinophilia在管理阻塞性呼吸道疾病时需要考虑.
- 了解呼吸道微生物群可以提供有关疾病机制的见解,以及针对ACO和相关疾病的个性化治疗策略.
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