Minimally Invasive Sampling Method Identifies Differences in Taxonomic Richness of Nasal Microbiomes in Young Infants Associated with Mode of Delivery.

Abstract:

:To date, there is a limited understanding of the role of the airway microbiome in the early life development of respiratory diseases such as asthma, partly due to a lack of simple and minimally invasive sample collection methods. In order to characterize the baseline microbiome of the upper respiratory tract (URT) in infants, a comparatively non-invasive method for sampling the URT microbiome suitable for use in infants was developed. Microbiome samples were collected by placing filter paper in the nostrils of 33 healthy, term infants enrolled as part of the Infant Susceptibility to Pulmonary Infections and Asthma Following RSV Exposure (INSPIRE) study. After bacterial genomic DNA was extracted from the filters, amplicons were generated with universal primers targeting the V1-V3 region of the 16S rRNA gene. This method was capable of capturing a wide variety of taxa expected to inhabit the nasal cavity. Analyses stratifying subjects by demographic and environmental factors previously observed or predicted to influence microbial communities were performed. Microbial community richness was found to be higher in infants who had been delivered via Cesarean section and in those who had been formula-fed; an association was observed between diet and delivery, which confounds this analysis. We have established a baseline URT microbiome using a non-invasive filter paper nasal sampling for this population, and future studies will be performed in this large observational cohort of infants to investigate the relationship between viral infections, the URT microbiota, and the development of childhood wheezing illnesses.

journal_name

Microb Ecol

journal_title

Microbial ecology

authors

Shilts MH,Rosas-Salazar C,Tovchigrechko A,Larkin EK,Torralba M,Akopov A,Halpin R,Peebles RS,Moore ML,Anderson LJ,Nelson KE,Hartert TV,Das SR

doi

10.1007/s00248-015-0663-y

subject

Has Abstract

pub_date

2016-01-01 00:00:00

pages

233-42

issue

1

eissn

0095-3628

issn

1432-184X

pii

10.1007/s00248-015-0663-y

journal_volume

71

pub_type

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