Document Detail

Increased epithelial gaps in the small intestines of patients with inflammatory bowel disease: density matters.
MedLine Citation:
PMID:  21396639     Owner:  NLM     Status:  MEDLINE    
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. (
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:  Controlled Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't     Date:  2011-03-11
Journal Detail:
Title:  Gastrointestinal endoscopy     Volume:  73     ISSN:  1097-6779     ISO Abbreviation:  Gastrointest. Endosc.     Publication Date:  2011 Jun 
Date Detail:
Created Date:  2011-06-01     Completed Date:  2011-12-07     Revised Date:  2014-07-30    
Medline Journal Info:
Nlm Unique ID:  0010505     Medline TA:  Gastrointest Endosc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1174-80     Citation Subset:  IM    
Copyright Information:
Copyright © 2011. Published by Mosby, Inc.
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MeSH Terms
Cell Count
Colitis, Ulcerative / pathology*
Colon / pathology*
Crohn Disease / pathology*
Epithelium / pathology
Extracellular Space*
Ileum / pathology*
Intestinal Mucosa / pathology*
Microscopy, Confocal
Middle Aged
Prospective Studies
Severity of Illness Index
Statistics, Nonparametric
Grant Support
//Canadian Institutes of Health Research

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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