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Fecal calprotectin: a quantitative marker of colonic inflammation in children with inflammatory bowel disease
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm , Centre for Clinical Research, County of Västmanland.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm , Centre for Clinical Research, County of Västmanland.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences.
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2007 (English)In: Journal of Pediatric Gastroenterology and Nutrition - JPGN, ISSN 0277-2116, E-ISSN 1536-4801, Vol. 45, no 4, 414-420 p.Article in journal (Refereed) Published
Abstract [en]

Objectives: The protein calprotectin (S100 A8/A9) is present in neutrophils, monocytes, and macrophages. Colorectal inflammation can be detected by increased excretion of fecal calprotectin (FC). The aim of this study was to evaluate FC as a quantitative marker of inflammatory activity in children with inflammatory bowel disease (IBD). Patients and Methods: Thirty-nine children with IBD delivered a fecal spot sample and underwent colonoscopy. The samples were examined with an enzyme-linked immunosorbent assay for FC (Calprest, Eurospital, Trieste, Italy). The concentrations were correlated to macroscopic and microscopic assessments of extent and severity of inflammation in 8 colonic segments for each patient. Results: FC correlated significantly to the macroscopic extent (Spearman p=0.61) and the severity (Spearman p=0.52) of colonic inflammation and to a macroscopic, combined extent and severity score (Spearman p = 0.65). Significant correlations also were found to the microscopic extent (Spearman p=0.71) and severity (Spearman p = 0.72) of colonic inflammation and to a microscopic, combined extent and severity score (Spearman p=0.75). The median FC was 392 μg/g (95% confidence interval [CI], 278-440) in children with clinical IBD symptoms (n=23) and 32.9 μg/g (95% CI, 9.4-237) in asymptomatic IBD patients (n= 16). Of the asymptomatic children, 56% had a complete microscopic mucosal healing, and their median FC was 9.9 μg/g (95% CI, 5.9-41.9). Conclusions: FC can be used as a surrogate marker for estimation of colonic inflammation in pediatric IBD. Normalized FC concentration seems to indicate complete mucosal healing. FC is simple to obtain and analyze; this should facilitate objective assessment and monitoring of IBD activity.

Place, publisher, year, edition, pages
2007. Vol. 45, no 4, 414-420 p.
Keyword [en]
Colitis, Colonoscopy, Feces, Inflammatory bowel diseases, Leukocyte L1 antigen complex
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Medical and Health Sciences
Identifiers
URN: urn:nbn:se:uu:diva-16064DOI: 10.1097/MPG.0b013e31810e75a9ISI: 000249607100005PubMedID: 18030206OAI: oai:DiVA.org:uu-16064DiVA: diva2:43835
Available from: 2008-04-15 Created: 2008-04-15 Last updated: 2017-12-08Bibliographically approved

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Lööf, Lars

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