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Antibiotic use during pregnancy increases offspring asthma severity in a dose-dependent manner.
Allergy 75, 1979-1990 (2020)
Publ. Version/Full Text
Research data
DOI
Background: The use of antibiotics during pregnancy is associated with increased allergic asthma risk in the offspring, and given that approximately 25% of pregnant women are prescribed antibiotics, it is important to understand the mechanisms contributing to this phenomenon. Currently, there are no studies that directly test this association experimentally. Our objective was to develop a mouse model in which antibiotic treatment during pregnancy results in increased offspring asthma susceptibility.Methods: Pregnant mice were treated daily from gestation day 8-17 with an oral solution of the antibiotic vancomycin, and three concentrations were tested. At weaning, offspring were subjected to an adjuvant-free experimental asthma protocol using ovalbumin as an allergen. The composition of the gut microbiome was determined in mothers and offspring with samples collected from five different time points; shortchain fatty acids were also analyzed in allergic offspring.Results: We found that maternal antibiotic treatment during pregnancy was associated with increased offspring asthma severity in a dose-dependent manner. Furthermore, maternal vancomycin treatment during pregnancy caused marked changes in the gut microbiome composition in both mothers and pups at several different time points. The increased asthma severity and intestinal microbiome changes in pups were also associated with significantly decreased cecal short-chain fatty acid concentrations.Conclusion: Consistent with the "Developmental Origins Hypothesis," our results confirm that exposure to antibiotics during pregnancy shapes the neonatal intestinal environment and increases offspring allergic lung inflammation.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Antibiotics ; Asthma ; Microbiome ; Pregnancy ; Short-chain Fatty Acid; Early-life; Airway Inflammation; Sequence Data; Microbiome; Microflora; Water; Risk; Gut
ISSN (print) / ISBN
0105-4538
e-ISSN
1398-9995
Journal
Allergy
Quellenangaben
Volume: 75,
Issue: 8,
Pages: 1979-1990
Publisher
Wiley
Publishing Place
111 River St, Hoboken 07030-5774, Nj Usa
Non-patent literature
Publications
Reviewing status
Peer reviewed
Institute(s)
Institute of Lung Health and Immunity (LHI)