Document Detail


Increased epithelial gaps in the small intestines of patients with inflammatory bowel disease: density matters.
MedLine Citation:
PMID:  21396639     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: Epithelial gaps created by shedding of epithelial cells in the small intestine can be visualized by using confocal laser endomicroscopy (CLE). The density of epithelial gaps in the small bowels of patients with inflammatory bowel disease (IBD) and controls without IBD is unknown. OBJECTIVE: To determine whether the epithelial gap density in patients with IBD is different from that in controls. DESIGN: Prospective, controlled, cohort study. SETTING: A tertiary-care referral center. PATIENTS: This study involved patients with IBD and control patients without IBD undergoing colonoscopy. INTERVENTION: Probe-based CLE (pCLE) was used to image the terminal ileum. MAIN OUTCOME MEASUREMENTS: The primary outcome of the study was gap density, defined as the total number of gaps per 1000 cells counted in adequately imaged villi by using pCLE. The pCLE images were blindly reviewed, and the number of epithelial gaps and cells were manually counted. The secondary outcomes were correlation of gap density with disease activity, location, and severity of clinical disease. RESULTS: There were 30 controls and 28 patients with IBD. Of the patients with IBD, 16 had Crohn's disease, and 12 had ulcerative colitis. The median epithelial gap densities for controls and patients with IBD were 18 and 61 gaps/1000 cells, respectively (P < .001). Gap density did not correlate with disease activity. Patients with ulcerative pan-colitis tended toward gap densities lower than those of patients with limited colitis (32 versus 97 gaps/1000 cells, P = .06). Patients with IBD with severe clinical disease also had lower median gap densities (37 vs 90 gaps/1000 cells, P = .04). LIMITATIONS: A single-center study. CONCLUSION: The epithelial gap density was significantly increased in patients with IBD compared with controls. (Clinical trial registration number: NCT00988273.).
Authors:
Julia J Liu; Karen Wong; Aducio L Thiesen; Stephanie J Mah; Levinus A Dieleman; Brian Claggett; John R Saltzman; Richard N Fedorak
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-3-10
Journal Detail:
Title:  Gastrointestinal endoscopy     Volume:  -     ISSN:  1097-6779     ISO Abbreviation:  -     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2011-3-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0010505     Medline TA:  Gastrointest Endosc     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011. Published by Mosby, Inc.
Affiliation:
Department of Medicine, Division of Gastroenterology (J.J.L., K.W., S.J.M., L.A.D., R.N.F.), Department of Laboratory Medicine and Pathology (A.L.T.), University of Alberta, Edmonton, Alberta, Canada; Department of Biostatistics (B.C.), Harvard School of Public Health, Gastroenterology Division (J.R.S.), Brigham and Women's Hospital, Boston, Massachusetts, USA.
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