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Article Publish Status: FREE
Abstract Title:

Improvement of digestive health and reduction in proteobacterial populations in the gut microbiota of cystic fibrosis patients using a Lactobacillus reuteri probiotic preparation: a double blind prospective study.

Abstract Source:

J Cyst Fibros. 2014 Dec ;13(6):716-22. Epub 2014 Mar 11. PMID: 24636808

Abstract Author(s):

Rosa del Campo, María Garriga, Ana Pérez-Aragón, Pilar Guallarte, Adelaida Lamas, Luis Máiz, Carmen Bayón, Garbiñe Roy, Rafael Cantón, Javier Zamora, Fernando Baquero, Lucrecia Suárez

Article Affiliation:

Rosa del Campo

Abstract:

BACKGROUND: Although scientific knowledge about the benefits of probiotic use in cystis fibrosis (CF) is scarce, their expectative is promising. The aim of this work was to analyze the effect of a Lactobacillus reuteri probiotic preparation versus placebo in CF patients.

METHODS: A prospective, double blind, crossover and with placebo study was carried out in 30 CF patients from two Spanish hospitals. Patients were randomized in Group A (6 months of probiotic followed by 6 months of placebo) and Group B (6 months of placebo followed by 6 months of probiotic). GIQLI (gastrointestinal) and SF-12 (general) health tests were performed after probiotic and placebo intakes. Fat absorption coefficient, calprotectin, and inflammatory interleukin quantification were determined in fecal samples. Total fecal DNA was obtained and metagenomic 454-pyrosequencing was applied to analyze the microbiome composition. STATA v12 MP software was used for statistical analyses.

RESULTS: Statistically significant improvement in the gastrointestinal health and decrease of the calprotectin levels were demonstrated in patients after probiotic exposure, in comparison with placebo. All CF subjects reported good tolerance to L. reuteri without secondary effects. Metagenomic analysis showed an important dysbiosis in CF gut microbiota associated with a high concentration of Proteobacteria. Probiotic intake was followed by a reduction in the total bacterial density, mostly due to a considerable reduction in theγ-Proteobacteria phylum; and an important increase of the microbial diversity with a higher representation of Firmicutes.

CONCLUSIONS: Probiotics might ameliorate the dysbiosis of CF gut microbiota, characterized by a high density of Proteobacterial organisms. L. reuteri significantly decrease intestinal inflammation and increase digestive comfort.

Study Type : Human Study

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