Metabolomics of fecal extracts detects altered metabolic activity of gut microbiota in ulcerative colitis and irritable bowel syndrome

Le Gall, Gwenaelle ORCID: https://orcid.org/0000-0002-1379-2196, Noor, Samah O., Ridgway, Karyn, Scovell, Louise, Jamieson, Crawford, Johnson, Ian T., Colquhoun, Ian J., Kemsley, E. Kate ORCID: https://orcid.org/0000-0003-0669-3883 and Narbad, Arjan (2011) Metabolomics of fecal extracts detects altered metabolic activity of gut microbiota in ulcerative colitis and irritable bowel syndrome. Journal of Proteome Research, 10 (9). pp. 4208-4218. ISSN 1535-3893

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Abstract

(1)H NMR spectroscopy of aqueous fecal extracts has been used to investigate differences in metabolic activity of gut microbiota in patients with ulcerative colitis (UC) (n = 13), irritable bowel syndrome (IBS) (n = 10), and healthy controls (C) (n = 22). Up to four samples per individual were collected over 2 years giving a total of 124 samples. Multivariate discriminant analysis, based on NMR data from all three groups, was able to predict UC and C group membership with good sensitivity and specificity; classification of IBS samples was less successful and could not be used for diagnosis. Trends were detected toward increased taurine and cadaverine levels in UC with increased bile acid and decreased branched chain fatty acids in IBS relative to controls; changes in short chain fatty acids and amino acids were not significant. Previous PCR-denaturing gradient gel electrophoresis (PCR-DGGE) analysis of the same fecal material had shown alterations of the gut microbiota when comparing UC and IBS groups with controls. Hierarchical cluster analysis showed that DGGE profiles from the same individual were stable over time, but NMR spectra were more variable; canonical correlation analysis of NMR and DGGE data partly separated the three groups and revealed a correlation between the gut microbiota profile and metabolite composition.

Item Type:	Article
Uncontrolled Keywords:	ulcerative colitis,irritable bowel disease,fecal extracts,metabolomics,nmr,dgge,chain fatty-acids,crohns-disease,mouse model,in-vitro,intestinal inflammation,colonic function,systems biology,butyrate,bacteria,lactate
Faculty \ School:	Faculty of Science > School of Chemistry Faculty of Science > School of Biological Sciences
UEA Research Groups:	Faculty of Medicine and Health Sciences > Research Centres > Lifespan Health
Depositing User:	LivePure Connector
Date Deposited:	20 Jul 2018 15:33
Last Modified:	19 Oct 2023 02:14
URI:	https://ueaeprints.uea.ac.uk/id/eprint/67733
DOI:	10.1021/pr2003598

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