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Related Concept Videos

Drug Toxicity: Allergic Reactions01:30

Drug Toxicity: Allergic Reactions

149
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...
149
Allergic Reactions: Anaphylaxis01:30

Allergic Reactions: Anaphylaxis

182
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,...
182
Allergic Reactions02:06

Allergic Reactions

33.7K
Overview
33.7K
Allergic Drug Reactions01:27

Allergic Drug Reactions

1.6K
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...
1.6K
Hypersensitivities01:30

Hypersensitivities

8.4K
Hypersensitivity, also known as a hypersensitivity reaction or allergic reaction, is a condition where the body's immune system reacts abnormally to a foreign substance. Such substances, that cause hypersensitivity are referred to as an allergen, could be something typically harmless to most people, like pollen or certain foods.
Types of Hypersensitivities
Hypersensitivity reactions are categorized into four types: Type 1, Type 2, Type 3, and Type 4. Each type has a distinct mechanism...
8.4K
Hypersensitivity Reactions: Immune-Complex Reactions01:19

Hypersensitivity Reactions: Immune-Complex Reactions

167
Type III hypersensitivity reactions occur when antigen–antibody complexes form and activate the complement system. Normally, these complexes help the clearance of antigens by phagocytes and red blood cells. However, when large numbers of immune complexes are present, they can deposit in tissues—particularly in the walls of blood vessels—leading to inflammation and tissue injury. These deposits trigger complement activation and neutrophil recruitment, resulting in serum...
167

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Related Experiment Video

Updated: Apr 5, 2026

A Mouse Ear Model for Allergic Contact Dermatitis Evaluation
08:02

A Mouse Ear Model for Allergic Contact Dermatitis Evaluation

Published on: March 24, 2023

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Allergic contact dermatitis for residents.

Sheila Jalalat1

  • 1sjalalat@gmail.com.

Cutis
|August 6, 2015
PubMed
Summary

Allergic contact dermatitis (ACD) is a common skin condition. Dermatologists must learn to diagnose and manage ACD effectively, using available resources during training.

Area of Science:

  • Dermatology
  • Allergen identification

Background:

  • Allergic contact dermatitis (ACD) is a prevalent skin condition encountered in dermatological practice.
  • Effective management of ACD is crucial for patient outcomes.

Purpose of the Study:

  • To emphasize the importance of early diagnosis and management of ACD for dermatology residents.
  • To highlight the utility of specific resources in training for ACD care.

Main Methods:

  • Review of common allergens and diagnostic techniques for ACD.
  • Discussion of management strategies and available clinical resources.

Main Results:

  • ACD diagnosis and management require specialized knowledge and skills.
  • Utilizing educational resources aids in resident competency.

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Contact Hypersensitivity as a Murine Model of Allergic Contact Dermatitis
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Resolving Water, Proteins, and Lipids from In Vivo Confocal Raman Spectra of Stratum Corneum through a Chemometric Approach
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Resolving Water, Proteins, and Lipids from In Vivo Confocal Raman Spectra of Stratum Corneum through a Chemometric Approach

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Related Experiment Videos

Last Updated: Apr 5, 2026

A Mouse Ear Model for Allergic Contact Dermatitis Evaluation
08:02

A Mouse Ear Model for Allergic Contact Dermatitis Evaluation

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Contact Hypersensitivity as a Murine Model of Allergic Contact Dermatitis
08:25

Contact Hypersensitivity as a Murine Model of Allergic Contact Dermatitis

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Resolving Water, Proteins, and Lipids from In Vivo Confocal Raman Spectra of Stratum Corneum through a Chemometric Approach
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Resolving Water, Proteins, and Lipids from In Vivo Confocal Raman Spectra of Stratum Corneum through a Chemometric Approach

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Conclusions:

  • Early and accurate diagnosis of ACD is essential for effective treatment.
  • Dermatology residents should be proficient in managing ACD and leveraging training resources.