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Related Concept Videos

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 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 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 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: 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: 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

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Therapeutic Evaluation of Fecal Microbiota Transplantation in an Interleukin 10-Deficient Mouse Model
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[Ischemic colitis in young adults.].

H Kristjansson, T Thorgeirsson, N Cariglia

    Laeknabladid
    |August 15, 2009
    PubMed
    Summary

    Ischemic colitis, typically seen in older adults, affects younger individuals too. This study highlights potential risk factors in young patients and emphasizes early diagnosis for better outcomes.

    Area of Science:

    • Gastroenterology
    • Colorectal Surgery
    • Internal Medicine

    Context:

    • Ischemic colitis is commonly associated with cardiovascular disease in the elderly.
    • Recent observations indicate increasing diagnoses in younger populations.
    • This study investigates the characteristics of ischemic colitis in a younger demographic.

    Purpose:

    • To determine the prevalence, anatomical location, prognosis, and risk factors of ischemic colitis in young patients.
    • To compare outcomes between young and elderly patients with ischemic colitis.
    • To identify potential contributing factors for ischemic colitis in individuals under 40.

    Summary:

    • A retrospective analysis of 26 ischemic colitis cases (1983-1995) identified 5 patients (19%) under 40.

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  • Younger patients experienced reversible ischemia, primarily in the left colon, with potential links to smoking, dehydration, NSAID use, constipation, and contraceptives.
  • Elderly patients (over 60) had higher rates of surgical intervention and mortality.

    • Impact:

    • The findings underscore the significance of considering ischemic colitis in younger patients presenting with acute symptoms.
    • Early diagnosis through endoscopy and biopsies is crucial for effective management and improved prognosis.
    • This research contributes to understanding the pathophysiology and risk factors in a less commonly affected demographic.