Probiotic supplementation restores normal microbiota composition and function in antibiotic-treated and in caesarean-born infants.

Immunobiology Research Programme, Department of Bacteriology and Immunology, University of Helsinki, Helsinki, Finland. katri.korpela@helsinki.fi. European Molecular Biology Laboratory, Heidelberg, Germany. katri.korpela@helsinki.fi. Immunobiology Research Programme, Department of Bacteriology and Immunology, University of Helsinki, Helsinki, Finland. Department of Veterinary Biosciences, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland. Department of Microbiome Science, Max Planck Institute for Developmental Biology, Tübingen, Germany. Institute of Biotechnology, University of Helsinki, Helsinki, Finland. Skin and Allergy Hospital, Department of Paediatrics, Helsinki University Hospital, Helsinki, Finland. Children's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland. Laboratory of Microbiology, Wageningen University, Wageningen, the Netherlands.

Microbiome. 2018;(1):182
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Abstract

BACKGROUND Infants born by caesarean section or receiving antibiotics are at increased risk of developing metabolic, inflammatory and immunological diseases, potentially due to disruption of normal gut microbiota at a critical developmental time window. We investigated whether probiotic supplementation could ameliorate the effects of antibiotic use or caesarean birth on infant microbiota in a double blind, placebo-controlled randomized clinical trial. Mothers were given a multispecies probiotic, consisting of Bifidobacterium breve Bb99 (Bp99 2 × 108 cfu) Propionibacterium freundenreichii subsp. shermanii JS (2 × 109cfu), Lactobacillus rhamnosus Lc705 (5 × 109 cfu) and Lactobacillus rhamnosus GG (5 × 109 cfu) (N = 168 breastfed and 31 formula-fed), or placebo supplement (N = 201 breastfed and 22 formula-fed) during pregnancy, and the infants were given the same supplement. Faecal samples of the infants were collected at 3 months and analyzed using taxonomic, metagenomic and metaproteomic approaches. RESULTS The probiotic supplement had a strong overall impact on the microbiota composition, but the effect depended on the infant's diet. Only breastfed infants showed the expected increase in bifidobacteria and reduction in Proteobacteria and Clostridia. In the placebo group, both birth mode and antibiotic use were significantly associated with altered microbiota composition and function, particularly reduced Bifidobacterium abundance. In the probiotic group, the effects of antibiotics and birth mode were either completely eliminated or reduced. CONCLUSIONS The results indicate that it is possible to correct undesired changes in microbiota composition and function caused by antibiotic treatments or caesarean birth by supplementing infants with a probiotic mixture together with at least partial breastfeeding. TRIAL REGISTRATION clinicaltrials.gov NCT00298337 . Registered March 2, 2006.

Methodological quality

Publication Type : Randomized Controlled Trial

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