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The effects of probiotics on barrier function and mucosal pouch microbiota during maintenance treatment for severe pouchitis in patients with ulcerative colitis
Linköping University, Department of Clinical and Experimental Medicine. Linköping University, Faculty of Health Sciences.
Wageningen University, Netherlands .
Linköping University, Department of Clinical and Experimental Medicine, Division of Clinical Sciences. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Center for Surgery, Orthopaedics and Cancer Treatment, Department of Surgery in Linköping.
Linköping University, Department of Clinical and Experimental Medicine, Division of Clinical Sciences. Linköping University, Faculty of Health Sciences.
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2013 (English)In: Alimentary Pharmacology and Therapeutics, ISSN 0269-2813, E-ISSN 1365-2036, Vol. 38, no 7, 772-783 p.Article in journal (Refereed) Published
Abstract [en]

Background less thanbrgreater than less thanbrgreater thanA total of 10-15% of patients with an ileoanal pouch develop severe pouchitis necessitating long-term use of antibiotics or pouch excision. Probiotics reduce the risk of recurrence of pouchitis, but mechanisms behind these effects are not fully understood. less thanbrgreater than less thanbrgreater thanAim less thanbrgreater than less thanbrgreater thanTo examine mucosal barrier function in pouchitis, before and after probiotic supplementation and to assess composition of mucosal pouch microbiota. less thanbrgreater than less thanbrgreater thanMethods less thanbrgreater than less thanbrgreater thanSixteen patients with severe pouchitis underwent endoscopy with biopsies of the pouch on three occasions: during active pouchitis; clinical remission by 4 weeks of antibiotics; after 8 weeks of subsequent probiotic supplementation (Ecologic 825, Winclove, Amsterdam, the Netherlands). Thirteen individuals with a healthy ileoanal pouch were sampled once as controls. Ussing chambers were used to assess transmucosal passage of Escherichia coli K12, permeability to horseradish peroxidase (HRP) and Cr-51-EDTA. Composition and diversity of the microbiota was analysed using Human Intestinal Tract Chip. less thanbrgreater than less thanbrgreater thanResults less thanbrgreater than less thanbrgreater thanPouchitis Disease Activity Index (PDAI) was significantly improved after antibiotic and probiotic supplementation. Escherichia coli K12 passage during active pouchitis [3.7 (3.4-8.5); median (IQR)] was significantly higher than in controls [1.7 (1.0-2.4); P andlt; 0.01], did not change after antibiotic treatment [5.0 (3.3-7.1); P = ns], but was significantly reduced after subsequent probiotic supplementation [2.2 (1.7-3.3); P andlt; 0.05]. No significant effects of antibiotics or probiotics were observed on composition of mucosal pouch microbiota; however, E. coli passage correlated with bacterial diversity (r = -0.40; P = 0.018). Microbial groups belonging to Bacteroidetes and Clostridium clusters IX, XI and XIVa were associated with healthy pouches. less thanbrgreater than less thanbrgreater thanConclusions less thanbrgreater than less thanbrgreater thanProbiotics restored the mucosal barrier to E. coli and HRP in patients with pouchitis, a feasible factor in prevention of recurrence during maintenance treatment. Restored barrier function did not translate into significant changes in mucosal microbiota composition, but bacterial diversity correlated with barrier function.

Place, publisher, year, edition, pages
Wiley-Blackwell , 2013. Vol. 38, no 7, 772-783 p.
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Medical and Health Sciences
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URN: urn:nbn:se:liu:diva-98215DOI: 10.1111/apt.12451ISI: 000323843900011OAI: oai:DiVA.org:liu-98215DiVA: diva2:653225
Note

Funding Agencies|Swedish Research Council - Medicine||Research Council of South-East Sweden (FORSS)||County Council of Ostergotland||County Council of Jonkoping||SenterNovem (Agentschap NL), an agency of the Dutch Ministry of Economic Affairs|FND-07013|

Available from: 2013-10-03 Created: 2013-10-03 Last updated: 2017-12-06

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Persborn, MatsWallon, ConnyCarlsson, AndersSöderholm, Johan D.

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Department of Clinical and Experimental MedicineFaculty of Health SciencesDivision of Clinical SciencesDepartment of Surgery in Linköping
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