• Juan José Sebastián Domingo.
• Servicio de Aparato Digestivo, Hospital Royo Villanova, Zaragoza, España. Electronic address: jjsebastian@salud.aragon.es.
• Gastroent Hepat Barc. 2017 Jun 1; 40 (6): 417-429.

BackgroundProbiotics may act as biological agents that modify the intestinal microbiota and certain cytokine profiles, which can lead to an improvement in certain gastrointestinal diseases.ObjectivesTo conduct a review of the evidence of the role of probiotics in certain gastrointestinal diseases in adults.Search MethodsReview conducted using appropriate descriptors, filters and limits in the PubMed database (MEDLINE).Selection CriteriaThe MeSH terms used were Probiotics [in the title] AND Gastrointestinal Diseases, with the following limits or filters: Types of study: Systematic Reviews, Meta-Analysis, Guideline, Practice Guideline, Consensus Development Conference (and Consensus Development Conference NIH), Randomized Controlled Trial, Controlled Clinical Trial and Clinical Trial; age: adults (19 or older); language: English and Spanish; in humans, and with at least one abstract.Data Collection And AnalysisFull texts of all the Systematic Reviews and meta-analyses directly related to the review's objective were obtained, as well as the Randomised Controlled Trials of the studies that were considered relevant and of sufficient quality for this review.Main ResultsCertain probiotics, different for each process, have proven to be effective and beneficial in cases of acute infectious diarrhoea, antibiotic-associated diarrhoea, Clostridium difficile-associated diarrhoea, pouchitis and Helicobacter pylori infection eradication.Authors' ConclusionsAlthough some probiotics have not demonstrated any benefit, there are certain gastrointestinal diseases in which the use of probiotics, true biological agents, can be recommended.Copyright © 2017 Elsevier España, S.L.U., AEEH y AEG. All rights reserved.

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