Characterization of the upper respiratory tract microbiota in Chilean asthmatic children reveals compositional, functional, and structural differences

Autor: Ignacio Ramos-Tapia, Katiuska L. Reynaldos-Grandón, Marcos Pérez-Losada, Eduardo Castro-Nallar
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Frontiers in Allergy, Vol 4 (2023)
Druh dokumentu: article
ISSN: 2673-6101
DOI: 10.3389/falgy.2023.1223306
Popis: Around 155 million people worldwide suffer from asthma. In Chile, the prevalence of this disease in children is around 15% and has a high impact in the health system. Studies suggest that asthma is caused by multiple factors, including host genetics, antibiotic use, and the development of the airway microbiota. Here, we used 16S rRNA high-throughput sequencing to characterize the nasal and oral mucosae of 63 asthmatic and 89 healthy children (152 samples) from Santiago, Chile. We found that the nasal mucosa was dominated by a high abundance of Moraxella, Dolosigranulum, Haemophilus, Corynebacterium, Streptococcus, and Staphylococcus. In turn, the oral mucosa was characterized by a high abundance of Streptococcus, Haemophilus, Gemella, Veillonella, Neisseria, and Porphyromonas. Our results showed significantly (P
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