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Related Concept Videos

Inflammatory Bowel Disease II: Crohn's Disease01:30

Inflammatory Bowel Disease II: Crohn's Disease

Introduction
Inflammatory bowel disease, commonly known as IBD, refers to a collection of disorders that lead to persistent inflammation of the gastrointestinal tract. The two types of IBD are ulcerative colitis, which impacts the colon, and Crohn's disease, which can involve any part of the gastrointestinal segment.
Crohn's disease
Crohn's disease is a chronic, systemic inflammatory bowel disease (IBD) that predominantly affects the gastrointestinal tract. It is marked by transmural...
Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy01:30

Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy

Various diagnostic tests are employed in the diagnostic process for Inflammatory Bowel Disease (IBD), particularly to differentiate between Crohn's disease and ulcerative colitis.
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the colonic...
Inflammatory Bowel Disease IV: Pharmacological Management01:29

Inflammatory Bowel Disease IV: Pharmacological Management

Upon diagnosis, managing Inflammatory Bowel Disease (IBD) involves addressing several crucial aspects. The primary goals include resting the bowel, correcting malnutrition, and providing symptomatic relief. Resting the bowel may consist of medications to reduce inflammation and promote healing. Correcting malnutrition is essential, often requiring dietary adjustments and nutritional supplements. Symptomatic relief aims to ease pain, diarrhea, and other discomforts in IBD.
Pharmacologic...
Inflammatory Bowel Disease I: Introduction01:26

Inflammatory Bowel Disease I: Introduction

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 “skip lesions” in which...
Inflammatory Bowel Disease II: Ulcerative Colitis01:20

Inflammatory Bowel Disease II: Ulcerative Colitis

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 BarrierA...
Inflammatory Bowel Disease III: Crohn's Disease01:25

Inflammatory Bowel Disease III: Crohn's Disease

Crohn’s disease is a chronic, relapsing form of inflammatory bowel disease characterized by segmental, transmural inflammation that can affect any part of the gastrointestinal tract. Its pathogenesis arises from a combination of genetic susceptibility, environmental exposures, epithelial barrier dysfunction, and immune dysregulation. Together, these factors lead to an exaggerated immune response against components of the gut microbiome.Genetic and Environmental InfluencesMultiple genetic...

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Enhanced intramucosal cytotoxic lymphocyte gene expression in ulcerative colitis.

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Should all Crohn's patients receive prophylactic medication after surgical resection? No.

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Related Experiment Video

Updated: Jul 16, 2026

Development of an Antigen-driven Colitis Model to Study Presentation of Antigens by Antigen Presenting Cells to T Cells
06:57

Development of an Antigen-driven Colitis Model to Study Presentation of Antigens by Antigen Presenting Cells to T Cells

Published on: September 18, 2016

Recent advances in inflammatory bowel disease.

R J Farrell1, S Banerjee, M A Peppercorn

  • 1Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02115, USA.

Critical Reviews in Clinical Laboratory Sciences
|March 21, 2001
PubMed
Summary

Recent advances in cellular and molecular biology have significantly improved the understanding and treatment of inflammatory bowel disease (IBD). New therapies target specific disease processes, enhancing safety and efficacy for better patient outcomes.

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Evaluating Therapeutic Interventions in the SHIP-deficient Mouse Model of Crohn Disease-like Ileitis and Fibrosis
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Evaluating Therapeutic Interventions in the SHIP-deficient Mouse Model of Crohn Disease-like Ileitis and Fibrosis

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Last Updated: Jul 16, 2026

Development of an Antigen-driven Colitis Model to Study Presentation of Antigens by Antigen Presenting Cells to T Cells
06:57

Development of an Antigen-driven Colitis Model to Study Presentation of Antigens by Antigen Presenting Cells to T Cells

Published on: September 18, 2016

Fluorescence-mediated Tomography for the Detection and Quantification of Macrophage-related Murine Intestinal Inflammation
07:05

Fluorescence-mediated Tomography for the Detection and Quantification of Macrophage-related Murine Intestinal Inflammation

Published on: December 15, 2017

Evaluating Therapeutic Interventions in the SHIP-deficient Mouse Model of Crohn Disease-like Ileitis and Fibrosis
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Evaluating Therapeutic Interventions in the SHIP-deficient Mouse Model of Crohn Disease-like Ileitis and Fibrosis

Published on: October 14, 2025

Area of Science:

  • Immunology
  • Gastroenterology
  • Pharmacology

Background:

  • Inflammatory bowel disease (IBD) encompasses Crohn's disease and ulcerative colitis, characterized by chronic gastrointestinal inflammation.
  • Understanding IBD pathogenesis has lagged behind clinical management, necessitating advancements in research.
  • Recent decades show significant progress in deciphering IBD's complex mechanisms.

Purpose of the Study:

  • To review current knowledge on inflammatory bowel disease pathogenesis.
  • To discuss advancements in animal models for IBD research.
  • To cover current and emerging therapeutic agents for IBD treatment.

Main Methods:

  • Review of recent scientific literature on IBD.
  • Analysis of cellular and molecular biology findings.
  • Evaluation of drug formulation and biotechnology advancements.

Main Results:

  • Significant improvements in understanding IBD pathogenesis.
  • Enhanced safety and efficacy of existing IBD treatments through drug formulation.
  • Development of novel biologic agents targeting key inflammatory pathways.
  • Progress in utilizing animal models to study IBD.

Conclusions:

  • The integration of cellular and molecular biology has revolutionized IBD understanding and management.
  • Targeted therapies and improved drug delivery systems offer better treatment options.
  • Emerging therapies hold promise for more effective IBD management in the future.