Associations and recovery dynamics of the nasopharyngeal microbiota during influenza-like illness in the aging population
| Autor: | Thijs Bosch, Sjoerd Kuiling, Elske Bijvank, Josine van Beek, Debbie van Baarle, Susana Fuentes, Sudarshan A. Shetty, James A. Groot |
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| Přispěvatelé: | Translational Immunology Groningen (TRIGR) |
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
Male
Aging Time Factors Science Population Population Dynamics Corynebacterium Nasopharynx/microbiology Microbial communities Disease Article Nasopharynx Haemophilus Influenza Human medicine Humans Respiratory system education Influenza Human/diagnosis Moraxella Phylogeny Aged education.field_of_study Influenza-like illness Multidisciplinary biology Microbiota Age Factors virus diseases Middle Aged Viral Load biology.organism_classification Influenza Bacterial Load respiratory tract diseases medicine.anatomical_structure Human/diagnosis Immunology Medicine Dysbiosis Female Microbiome Pathogens Influenza virus Respiratory tract |
| Zdroj: | Scientific Reports Scientific Reports, 12(1):1915. Nature Publishing Group Scientific Reports, Vol 12, Iss 1, Pp 1-13 (2022) |
| ISSN: | 2045-2322 |
| Popis: | BackgroundOlder adults are more susceptible to respiratory pathogens, several of which have been associated with an altered respiratory microbiota. Influenza-like illness (ILI), a disease caused by respiratory pathogens including but not exclusively by influenza virus, is a major health concern in this population. However, there is little information on changes in the nasopharyngeal (NP) microbiota of older adults associated with respiratory infections identified by/ reported as ILI, as well as its dynamics during recovery. Here, we compared the NP microbiota in older adults who presented with ILI (n= 240) to the NP microbiota in older adults not reporting an ILI event (n= 157) during the 2014-2015 influenza season. To investigate the dynamics of the microbiota from the acute phase to the recovery phase of the infection, participants reporting an ILI event were sampled at onset of infection (ResultsCross-sectional analysis of the microbiota at the different time-points showed no differences in alpha diversity between the groups. A small but significant effect of the ILI was observed on the microbiota community and structure when compared to controls and recovery samples. Furthermore, the NP microbiota exhibited inter-individual differences in dynamics from onset of ILI to recovery. Corynebacterium, one of the keystone species in the upper respiratory tract, was negatively associated with ILI and its abundance increased after recovery. Potential pathobionts such as Haemophilus, Porphyromonas and Gemella had higher abundances during acute-ILI. Stability and changes in the NP microbial community showed individual dynamics. Key core genera, Corynebacterium, Moraxella and Dolosigranulum exhibited higher inter-individual variability in acute-ILI, but showed comparable variability to controls after recovery. Participants in the ILI group with higher core microbiota abundances at the acute phase showed higher microbiota stability after recovery.ConclusionsOur findings demonstrate that acute-ILI is associated with small but significant alterations in the phylogenetic structure of the NP microbiota in older adults. The observed variation in the core microbiota suggests potential imbalances in the ecosystem, which could play a role in the recovery of the NP microbiota after an ILI event. |
| Databáze: | OpenAIRE |
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