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Drug-related allergies are immune-mediated responses triggered by the administration of pharmacological agents. These hypersensitivity reactions are classified based on the immune mechanisms involved. The four primary types—Type I, II, III, and IV—are mediated by different immunological pathways and exhibit distinct clinical manifestations.Type I Hypersensitivity/ IgE-Mediated Reactions: Immunoglobulin E (IgE) immediately mediates Type I hypersensitivity reactions. Upon initial...
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Allergic Reactions: Anaphylaxis01:30

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Anaphylaxis is a severe, life-threatening hypersensitivity reaction mediated by Immunoglobulin E (IgE) antibodies. When IgE binds to allergens, it triggers the release of mediators– histamine, leukotrienes, and prostaglandins from mast cells and basophils. These mediators cause vasodilation, edema, and inflammation, leading to various symptoms.The primary allergens causing anaphylaxis include food items (e.g., peanuts, shellfish), drugs (e.g., penicillin, asparaginase, corticotropin,...
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Allergic reactions related to drugs are hypersensitivity responses driven by the immune system and bear no connection to the drug's therapeutic action. While drugs in isolation do not trigger an immune response, they can interact with endogenous proteins to form antigens. These antigens stimulate lymphocytes to produce antibodies. IgE-type antibodies attach themselves to mast cells. Upon subsequent exposure to the same stimulus, the antigen-antibody interaction is initiated, unleashing...
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A Mouse Ear Model for Allergic Contact Dermatitis Evaluation
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EAACI position paper for practical patch testing in allergic contact dermatitis in children.

Flora B de Waard-van der Spek1, Ulf Darsow2, Charlotte G Mortz3

  • 1Department of Dermatology, Sint Franciscus Vlietland Group, Vlietland Hospital, Rotterdam/Schiedam, The Netherlands.

Pediatric Allergy and Immunology : Official Publication of the European Society of Pediatric Allergy and Immunology
|August 20, 2015
PubMed
Summary

Allergic contact dermatitis (ACD) is increasing in children, with sensitization possible in infancy. This document outlines standardized patch testing for diagnosing pediatric ACD, establishing a baseline allergen list for accurate diagnosis.

Keywords:
allergic contact dermatitischildrencontact allergenscontact dermatitiscutaneous allergyirritant dermatitispatch testspractical guidelines

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Area of Science:

  • Pediatric Dermatology
  • Allergen Immunology

Background:

  • Allergic contact dermatitis (ACD) is a growing concern in pediatric populations, with potential for early-onset sensitization.
  • Accurate diagnosis relies on clinical history, physical examination, and diagnostic skin testing.

Framework:

  • The European Academy of Allergy and Clinical Immunology (EAACI) Task Force developed consensus-based guidelines for pediatric ACD.
  • This document focuses on clinical aspects, standardized patch testing methodology, and future research directions.

Implementation:

  • Provides a recommended baseline list of allergens for patch testing in children with suspected ACD.
  • Recommends additional tests only when clinically indicated to ensure diagnostic accuracy.

Implications:

  • Aims to standardize patch testing procedures for allergic contact dermatitis in children globally.
  • Facilitates earlier and more accurate diagnosis of ACD in infants and children, guiding appropriate management strategies.