Influence of probiotic supplementation on the developing microbiota in human preterm neonates.
Gut Microbes
; 12(1): 1-16, 2020 11 09.
Article
em En
| MEDLINE
| ID: mdl-33095113
ABSTRACT
BACKGROUND:
Oral administration of probiotic bacteria to preterm neonates has been recommended to prevent the development of necrotizing enterocolitis (NEC). The influence of probiotics on the endogenous microbiome, however, has remained incompletely understood. STUDY DESIGN &METHODS:
Here, we performed an observational study including 80 preterm neonates born at a gestational age <32-weeks to characterize the persistence of probiotic bacteria after no treatment or oral administration of two different probiotic formula and their influence on the microbial ecosystem during and after the intervention and their association with the development of NEC. Weekly fecal samples were profiled by 16S rRNA sequencing and monitored for the presence of the probiotic bacteria by quantitative PCR.RESULTS:
Microbiota profiles differed significantly between the control group and both probiotic groups. Probiotic supplementation was associated with lower temporal variation as well as higher relative abundance of Bifidobacterium and Enterobacter combined with reduced abundance of Escherichia, Enterococcus, and Klebsiella. Colonization by probiotic bifidobacteria was observed in approximately 50% of infants although it remained transient in the majority of cases. A significantly reduced monthly incidence of NEC was observed in neonates supplemented with probiotics.CONCLUSION:
Our results demonstrate successful transient colonization by probiotic bacteria and a significant influence on the endogenous microbiota with a reduced abundance of bacterial taxa associated with the development of NEC. These results emphasize that probiotic supplementation may allow targeted manipulation of the enteric microbiota and confer a clinical benefit. (Clinical Trial Registry accession number DRKS/GCTR 00021034).Palavras-chave
Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Bactérias
/
Probióticos
/
Suplementos Nutricionais
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Enterocolite Necrosante
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Microbioma Gastrointestinal
Tipo de estudo:
Clinical_trials
/
Observational_studies
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Risk_factors_studies
Limite:
Humans
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Infant
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Newborn
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article