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Related Concept Videos

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...
Inflammatory Bowel Disease I: Ulcerative Colitis01:27

Inflammatory Bowel Disease I: Ulcerative Colitis

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...
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 IV: Clinical Manifestations01:20

Inflammatory Bowel Disease IV: Clinical Manifestations

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 disease course is marked...
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...

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Related Experiment Video

Updated: Jun 20, 2026

Cefoperazone-treated Mouse Model of Clinically-relevant Clostridium difficile Strain R20291
06:51

Cefoperazone-treated Mouse Model of Clinically-relevant Clostridium difficile Strain R20291

Published on: December 10, 2016

Evolving concepts in Clostridium difficile colitis.

Naomi G Diggs1, Christina M Surawicz

  • 1Department of Medicine, Division of Gastroenterology, University of Washington School of Medicine, Harborview Medical Center, Seattle, WA 98104, USA.

Current Gastroenterology Reports
|September 22, 2009
PubMed
Summary
This summary is machine-generated.

Clostridium difficile infection (CDI), a major cause of hospital-acquired diarrhea, is increasing in incidence and severity. This rise is linked to a hypervirulent strain and antibiotic overuse, affecting even low-risk populations.

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A Protocol to Characterize the Morphological Changes of Clostridium difficile in Response to Antibiotic Treatment
12:58

A Protocol to Characterize the Morphological Changes of Clostridium difficile in Response to Antibiotic Treatment

Published on: May 25, 2017

Related Experiment Videos

Last Updated: Jun 20, 2026

Cefoperazone-treated Mouse Model of Clinically-relevant Clostridium difficile Strain R20291
06:51

Cefoperazone-treated Mouse Model of Clinically-relevant Clostridium difficile Strain R20291

Published on: December 10, 2016

A Protocol to Characterize the Morphological Changes of Clostridium difficile in Response to Antibiotic Treatment
12:58

A Protocol to Characterize the Morphological Changes of Clostridium difficile in Response to Antibiotic Treatment

Published on: May 25, 2017

Area of Science:

  • Infectious Diseases
  • Microbiology
  • Epidemiology

Background:

  • Clostridium difficile infection (CDI) is a leading cause of nosocomial diarrhea.
  • Factors such as a hypervirulent strain and widespread antibiotic use are driving increased CDI incidence and severity.
  • CDI risk is elevated in specific populations, including those with inflammatory bowel disease, and is now observed in previously low-risk groups like young individuals, peripartum women, and children.

Purpose of the Study:

  • To highlight the increasing burden of Clostridium difficile infection.
  • To underscore the evolving epidemiology and risk factors associated with CDI.
  • To emphasize the urgent need for enhanced diagnostic, therapeutic, and infection control measures.

Main Methods:

  • Literature review and synthesis of current epidemiological data on CDI.
  • Analysis of contributing factors to CDI incidence and severity.
  • Identification of at-risk populations and clinical outcomes.

Main Results:

  • CDI incidence and severity are rising globally.
  • Hypervirulent strains and antibiotic overuse are key drivers of this trend.
  • Patients with inflammatory bowel disease face significantly higher risks of hospitalization, surgery, and mortality from CDI.

Conclusions:

  • The increasing prevalence and severity of CDI necessitate urgent improvements in healthcare strategies.
  • Enhanced diagnostic tools, effective treatments, and robust infection control are critical.
  • Addressing the evolving landscape of CDI is essential for patient outcomes and public health.