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Related Concept Videos

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...
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Type I Diabetes II: Pathophysiology

Type 1 diabetes mellitus arises from an immune-mediated destruction of pancreatic β-cells, resulting in an absolute deficiency of insulin. This process develops in genetically susceptible individuals when autoimmunity, environmental exposures, and immunologic dysregulation converge to trigger a targeted attack on the insulin-producing cells of the pancreas. The β-cells are located within the islets of Langerhans and are essential for regulating blood glucose by facilitating cellular uptake of...
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Gastritis is marked by disruption of the mucosal barrier that usually protects the stomach tissue from digestive juices and manifests in acute and chronic forms.
In acute gastritis, the gastric mucosa becomes swollen and red and undergoes superficial erosion. Superficial ulceration may lead to bleeding.
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Type I Diabetes I: Introduction01:12

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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...
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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.
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Linear IgA disease: clinical presentation, diagnosis, and pathogenesis.

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Related Experiment Video

Updated: May 22, 2026

Recognition of Epidermal Transglutaminase by IgA and Tissue Transglutaminase 2 Antibodies in a Rare Case of Rhesus Dermatitis
10:27

Recognition of Epidermal Transglutaminase by IgA and Tissue Transglutaminase 2 Antibodies in a Rare Case of Rhesus Dermatitis

Published on: December 15, 2011

Linear IgA disease: clinical presentation, diagnosis, and pathogenesis.

Vanessa A Venning1

  • 1Department of Dermatology, Churchill Hospital, Old Road, Oxford OX3 7LJ, UK. vanessa.venning@orh.nhs.uk

Immunology and Allergy Clinics of North America
|May 8, 2012
PubMed
Summary

Linear IgA disease is a rare autoimmune blistering condition causing skin blisters. It involves IgA antibody deposits along the basement membrane, affecting both children and adults with overlapping features.

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Area of Science:

  • Dermatology
  • Immunology
  • Autoimmune Diseases

Background:

  • Linear IgA disease is a rare subepidermal blistering disorder.
  • It is characterized by linear deposition of immunoglobulin A (IgA) at the basement membrane zone.
  • This chronic, acquired autoimmune condition affects both pediatric and adult populations.

Purpose of the Study:

  • To provide a comprehensive overview of Linear IgA disease.
  • To highlight the shared immunopathology and immunogenetics between pediatric and adult forms.
  • To discuss the clinical presentation and diagnostic criteria.

Main Methods:

  • Review of existing literature on Linear IgA disease.
  • Analysis of clinical, immunopathological, and immunogenetic data.
  • Comparison of disease characteristics in pediatric versus adult patients.

Main Results:

  • Linear IgA disease presents with subepidermal blistering.
  • Diagnostic hallmark is linear IgA deposition in the skin.
  • Significant overlap in immunopathology and immunogenetics exists between age groups, despite some clinical variations.

Conclusions:

  • Linear IgA disease is a distinct autoimmune blistering disease with shared underlying mechanisms across age groups.
  • Understanding these overlaps is crucial for accurate diagnosis and management.
  • Further research into specific immunogenetic factors may reveal targeted therapeutic strategies.