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Related Concept Videos

Inflammatory Bowel Disease II: Ulcerative Colitis01:20

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Ulcerative colitis is a chronic inflammatory disorder of the colon characterized by continuous mucosal inflammation that typically begins in the rectum and extends proximally in a uniform pattern. Its pathogenesis involves a complex interplay of genetic predisposition, immune dysregulation, and environmental influences. These factors converge to impair the colon’s epithelial defenses and promote an exaggerated inflammatory response against luminal contents.Breakdown of the Mucosal...
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Inflammatory Bowel Disease I: Ulcerative Colitis01:27

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Introduction
Inflammatory bowel disease, or IBD, encompasses a group of disorders characterized by chronic inflammation or ulceration of the gastrointestinal tract.
Risk Factors
The exact cause of IBD remains unclear, although it is believed to be due to a mix of genetic, environmental, microbial, and immune factors. Genetic factors are significant in determining susceptibility to IBD, with family history being a critical risk factor. Individuals with a first-degree relative who has IBD are at...
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Inflammatory Bowel Disease IV: Clinical Manifestations01:20

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Inflammatory bowel disease (IBD) encompasses two major chronic disorders—ulcerative colitis and Crohn’s disease—each characterized by relapsing episodes of gastrointestinal inflammation. Although they share certain clinical features, their patterns of involvement and manifestations differ in ways that aid diagnosis and guide management.Ulcerative ColitisUlcerative colitis is limited to the colon and rectum and involves continuous inflammation of the mucosal layer. The...
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Inflammatory bowel disease is a group of chronic disorders marked by recurrent inflammation of the gastrointestinal tract due to an abnormal immune response against gut microflora. This leads to tissue damage. The two main forms are Crohn’s disease and ulcerative colitis.Crohn’s DiseaseCrohn’s disease is a relapsing inflammatory disorder that can affect any part of the GI tract, from the mouth to the anus. It involves all layers of the bowel wall (transmural) and shows...
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Various diagnostic tests are employed in the diagnostic process for Inflammatory Bowel Disease (IBD), particularly to differentiate between Crohn's disease and ulcerative colitis.
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The small intestine exhibits a unique histological structure that significantly enhances its function in digestion and nutrient absorption. These structures include circular folds, villi, and various specialized cells that collectively facilitate the digestion of food.
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Related Experiment Video

Updated: Apr 23, 2026

Systematic Scoring Analysis for Intestinal Inflammation in a Murine Dextran Sodium Sulfate-Induced Colitis Model
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Comparing histological activity indexes in UC.

Aude Bressenot1, Julia Salleron2, Claire Bastien3

  • 1Inserm U954, Genetic nutrition and exposure to environmental risks (NGERE), University of Lorraine, Vandoeuvre-lès-Nancy, France Department of Pathology, University Hospital of Lorraine, Vandoeuvre-lès-Nancy, France.

Gut
|September 24, 2014
PubMed
Summary
This summary is machine-generated.

Histological scores for ulcerative colitis (UC) disease activity show strong agreement among pathologists. Key indicators like erosion and inflammatory cell infiltrate demonstrate high reliability for assessing UC activity.

Keywords:
ULCERATIVE COLITIS

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Area of Science:

  • Gastroenterology
  • Histopathology
  • Inflammatory Bowel Disease Research

Background:

  • Accurate assessment of ulcerative colitis (UC) disease activity is crucial for effective therapeutic strategies.
  • Currently, no single histological scoring system is universally accepted as optimal for UC.
  • Evaluating the reliability of existing histological UC activity indexes is necessary.

Purpose of the Study:

  • To compare the intraobserver reproducibility and interobserver agreement of various histological UC activity indexes.
  • To identify specific histological features with the highest interobserver agreement.

Main Methods:

  • 102 UC biopsy specimens were blindly scored by three pathologists using Geboes, Riley, Gramlich, Gupta indexes, and global visual evaluation (GVE).
  • Intraobserver reproducibility and interobserver agreement were assessed using intraclass correlation coefficients (quantitative) and κ values/Krippendorff index (qualitative).
  • Correlations between indexes were analyzed using Pearson's and Spearman's coefficients.

Main Results:

  • All assessed indexes (Geboes, Riley, Gramlich, Gupta, GVE) demonstrated good intraobserver reproducibility and interobserver agreement.
  • The histological items with the highest interobserver agreement were 'erosion/ulceration or surface epithelial integrity' and 'acute inflammatory cells infiltrate/neutrophils in lamina propria'.
  • A strong positive correlation was observed among the five scoring methods.

Conclusions:

  • The histological scoring systems for UC disease activity exhibit strong correlations and very good reliability.
  • High interobserver agreement was found for specific features: 'erosion/ulceration' and 'acute inflammatory cells infiltrate/neutrophils in lamina propria'.
  • These findings support the use of validated histological scoring systems in UC assessment.