Lung microbiota across age and disease stage in cystic fibrosis.

Lung microbiota across age and disease stage in cystic fibrosis.
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在囊性纤维化中,跨年龄和疾病阶段的肺微生物群。

DOI:
10.1038/srep10241
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发表时间:
2015-05-14
期刊:
影响因子:
4.6
通讯作者:
Guttman DS
Guttman DS
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Coburn B;Wang PW;Diaz Caballero J;Clark ST;Brahma V;Donaldson S;Zhang Y;Surendra A;Gong Y;Elizabeth Tullis D;Yau YC;Waters VJ;Hwang DM;Guttman DS

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要了解囊性纤维化(CF)气道中定植和持续存在的细菌种类的重要性,需要详细检查不同年龄和疾病阶段的细菌群落结构。我们使用16 S核糖体RNA测序来表征269名年龄范围为60岁的CF患者的肺部微生物群,包括来自4-17岁患者的76个儿科样本,以及广泛的疾病状态横截面,以确定细菌群落结构的特征及其与疾病阶段和年龄的关系。CF肺微生物群在群落结构、组成和多样性方面显示出显著的个体间变异性。核心微生物群由五个属组成-链球菌属、普雷沃菌属、罗氏菌属、韦荣球菌属和放线菌属。CF相关病原体如假单胞菌属、伯克霍尔德菌属、寡养单胞菌属和无色杆菌属的流行度低于核心属,但在存在时具有主导细菌群落的强烈趋势。社区多样性和肺功能在小于10岁的患者中最大,在年龄较大的患者中较低,在大约25岁时达到稳定状态。在多元回归模型中,较低的群落多样性与较差的肺功能相关。假单胞菌感染与年龄相关的社区多样性和肺功能的趋势。
Understanding the significance of bacterial species that colonize and persist in cystic fibrosis (CF) airways requires a detailed examination of bacterial community structure across a broad range of age and disease stage. We used 16S ribosomal RNA sequencing to characterize the lung microbiota in 269 CF patients spanning a 60 year age range, including 76 pediatric samples from patients of age 4–17, and a broad cross-section of disease status to identify features of bacterial community structure and their relationship to disease stage and age. The CF lung microbiota shows significant inter-individual variability in community structure, composition and diversity. The core microbiota consists of five genera - Streptococcus, Prevotella, Rothia, Veillonella and Actinomyces. CF-associated pathogens such as Pseudomonas, Burkholderia, Stenotrophomonas and Achromobacter are less prevalent than core genera, but have a strong tendency to dominate the bacterial community when present. Community diversity and lung function are greatest in patients less than 10 years of age and lower in older age groups, plateauing at approximately age 25. Lower community diversity correlates with worse lung function in a multivariate regression model. Infection by Pseudomonas correlates with age-associated trends in community diversity and lung function.
3-95 岁年龄范围的多种族肺活量测定参考值:2012 年全球肺功能方程。
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