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Clinical Chemistry and Laboratory Medicine (CCLM)

Published in Association with the European Federation of Clinical Chemistry and Laboratory Medicine (EFLM)

Editor-in-Chief: Plebani, Mario

Ed. by Gillery, Philippe / Lackner, Karl J. / Lippi, Giuseppe / Melichar, Bohuslav / Payne, Deborah A. / Schlattmann, Peter / Tate, Jillian R.

IMPACT FACTOR increased in 2015: 3.017
Rank 5 out of 30 in category Medical Laboratory Technology in the 2014 Thomson Reuters Journal Citation Report/Science Edition

SCImago Journal Rank (SJR) 2015: 0.873
Source Normalized Impact per Paper (SNIP) 2015: 0.982
Impact per Publication (IPP) 2015: 2.238

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Low S-adenosylmethionine concentrations found in patients with severe inflammatory bowel disease

Anne Schmedes / Jens Nederby Nielsen / Henrik Hey / Ivan Brandslund

Citation Information: Clinical Chemistry and Laboratory Medicine. Volume 42, Issue 6, Pages 648–653, ISSN (Print) 1434-6621, DOI: https://doi.org/10.1515/CCLM.2004.111, June 2005

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Background: S-adenosylmethionine is a methyl donor in many cellular reactions including detoxification of constantly produced hydrogen sulphide in the colon. A reduced capacity to detoxify hydrogen sulphide may be implicated in the pathogenesis of inflammatory bowel disease. S-adenosylmethionine could be low if this assumption is correct. We compared S-adenosylmethionine concentrations in whole blood in patients with severe and moderate inflammatory bowel disease with healthy reference persons. Methods: S-adenosylmethionine concentrations in whole blood were measured using high-pressure liquid chromatography. Patients with Crohn's disease (n=21), ulcerative colitis (n=7) and healthy age-matched reference persons (or controls) (n=17) were studied. Results: S-adenosylmethionine concentrations were significantly decreased in patients with severe inflammatory bowel disease (mean 1.10 mg/l) as compared to patients with moderate Crohn's disease and ulcerative colitis (mean 1.83 mg/l) and reference persons (mean 1.84 mg/l). Statistically significant inverse correlations were found between S-adenosylmethionine concentration and activity index (p<0.01 and R2=0.86) as well as Crohn's disease activity index (p<0.01 and R2=0.50) scores. Conclusions: Low concentrations of S-adenosylmethionine were found in patients with severe inflammatory bowel disease. Future studies will show whether S-adenosylmethionine is a marker for disease activity and a possible tool for investigation of sulphur toxicity as a causative mechanism in inflammatory bowel disease.

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