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Article Publish Status: FREE
Abstract Title:

Low-dose penicillin in early life induces long-term changes in murine gut microbiota, brain cytokines and behavior.

Abstract Source:

Nat Commun. 2017 Apr 4 ;8:15062. Epub 2017 Apr 4. PMID: 28375200

Abstract Author(s):

Sophie Leclercq, Firoz M Mian, Andrew M Stanisz, Laure B Bindels, Emmanuel Cambier, Hila Ben-Amram, Omry Koren, Paul Forsythe, John Bienenstock

Article Affiliation:

Sophie Leclercq

Abstract:

There is increasing concern about potential long-term effects of antibiotics on children's health. Epidemiological studies have revealed that early-life antibiotic exposure can increase the risk of developing immune and metabolic diseases, and rodent studies have shown that administration of high doses of antibiotics has long-term effects on brain neurochemistry and behaviour. Here we investigate whether low-dose penicillin in late pregnancy and early postnatal life induces long-term effects in the offspring of mice. We find that penicillin has lasting effects in both sexes on gut microbiota, increases cytokine expression in frontal cortex, modifies blood-brain barrier integrity and alters behaviour. The antibiotic-treated mice exhibit impaired anxiety-like and social behaviours, and display aggression. Concurrent supplementation with Lactobacillus rhamnosus JB-1 prevents some of these alterations. These results warrant further studies on the potential role of early-life antibiotic use in the development of neuropsychiatric disorders, and the possible attenuation of these by beneficial bacteria.

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