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Inflammatory Bowel Disease II: Crohn's Disease01:30

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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.
Crohn's disease
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Inflammatory Bowel Disease IV: Pharmacological Management01:29

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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...
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Complement System01:27

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The complement system is a group of approximately 20 plasma proteins that strengthen the body's defenses against infections through opsonization, inflammation, and cell lysis. Opsonization involves coating pathogens with complement proteins, making them more recognizable and facilitating phagocyte engulfment. Certain complement proteins induce inflammation that attracts immune cells to the site of infection. Cell lysis involves the destruction of pathogens through the formation of a...
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Related Experiment Video

Updated: Feb 11, 2026

Isolation of Papillary and Reticular Fibroblasts from Human Skin by Fluorescence-activated Cell Sorting
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Complement Activation in Inflammatory Skin Diseases.

Jenny Giang1, Marc A J Seelen2, Martijn B A van Doorn3

  • 1Department of Pathology, Erasmus Medical Center Rotterdam, Rotterdam, Netherlands.

Frontiers in Immunology
|May 2, 2018
PubMed
Summary
This summary is machine-generated.

The complement system, part of innate immunity, defends against pathogens and regulates inflammation. Its role in skin diseases like psoriasis and lupus highlights complement factors as potential therapeutic targets.

Keywords:
bullous pemphigoidcomplementdermatologyhidradenitis suppurativainnate immunitylupus erythematosuspsoriasisskin diseases

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Area of Science:

  • Immunology
  • Dermatology

Background:

  • The complement system is a critical component of innate immunity, essential for host defense against pathogens.
  • Complement activation produces molecules involved in inflammation, opsonization, and pathogen elimination.
  • The skin is an active immune organ where complement plays a significant role in various dermatological conditions.

Purpose of the Study:

  • To review the involvement of the complement system in inflammatory skin diseases.
  • To discuss complement factors as potential therapeutic targets for skin conditions.

Main Methods:

  • Literature review of complement system's role in immunology and dermatology.
  • Analysis of complement involvement in specific inflammatory skin diseases.
  • Exploration of therapeutic potential of complement factors.

Main Results:

  • Complement system activation is implicated in host defense and inflammatory responses.
  • Aberrant complement activity or deficiencies are linked to various skin diseases, including psoriasis, lupus erythematosus, and bullous dermatoses.
  • Triggers like auto-antibodies and microorganisms can activate complement, while deficiencies impair immune complex clearance.

Conclusions:

  • The complement system is intricately involved in the pathogenesis of inflammatory skin diseases.
  • Targeting complement factors presents a promising avenue for novel therapeutic interventions in dermatology.