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Cross-reactivity00:42

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Allergic Reactions

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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 numerous...
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Asthma is a chronic respiratory condition for which new therapeutic avenues, including anti-inflammatory drugs like mast cell stabilizers and anti-IgE treatments, continue to be developed.
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Drug Toxicity: Allergic Reactions01:30

Drug Toxicity: Allergic Reactions

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 exposure to a...
Allergic Reactions: Anaphylaxis01:30

Allergic Reactions: Anaphylaxis

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, heparin),...

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Related Experiment Video

Updated: May 12, 2026

Application of Biochip Microfluidic Technology to Detect Serum Allergen-specific Immunoglobulin E (sIgE)
07:10

Application of Biochip Microfluidic Technology to Detect Serum Allergen-specific Immunoglobulin E (sIgE)

Published on: April 21, 2019

Update in allergy and immunology

M T O'Hollaren1

  • 1Oregon Health Sciences University, Portland 97201, USA.

Annals of Internal Medicine
|December 29, 1998
PubMed
Summary
This summary is machine-generated.

Advances in internal medicine enhance understanding of the immune system in disease. Harnessing this knowledge aims to create better therapies for immune-related illnesses, with guidelines aiding clinical application.

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Area of Science:

  • Immunology
  • Pathophysiology
  • Internal Medicine

Background:

  • Significant progress in understanding the immune system's role in disease.
  • The immune system is implicated in the pathophysiology of numerous conditions.

Purpose of the Study:

  • To explore the application of immunological knowledge in developing novel therapies.
  • To discuss the role of clinical guidelines in managing immune-related illnesses.

Main Methods:

  • Review of current understanding in immunology and internal medicine.
  • Analysis of the potential for therapeutic development based on immune system research.

Main Results:

  • Internal medicine has achieved major breakthroughs in immune system research.
  • Effective therapies for immune-related diseases remain a key challenge.

Conclusions:

  • Harnessing immunological insights is crucial for advancing treatments.
  • Clinical guidelines are essential for the practical application of new therapies for immune diseases like asthma.