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Related Concept Videos

Allergic Reactions: Anaphylaxis01:30

Allergic Reactions: Anaphylaxis

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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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Antibodies, also known as immunoglobulins (Ig), are essential players of the adaptive immune system. These antigen-binding proteins are produced by B cells and make up 20 percent of the total blood plasma by weight. In mammals, antibodies fall into five different classes, which each elicits a different biological response upon antigen binding.
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Updated: Feb 28, 2026

A Component-resolved Diagnostic Approach for a Study on Grass Pollen Allergens in Chinese Southerners with Allergic Rhinitis and/or Asthma
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[Molecular component-resolved allergy diagnostics in ENT].

L Klimek1, S Becker2

  • 1Zentrum für Rhinologie und Allergologie Wiesbaden, Wiesbaden, Deutschland.

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|June 16, 2017
PubMed
Summary
This summary is machine-generated.

Molecular component-resolved diagnostics (CRD) improve allergy diagnosis by identifying specific allergens, aiding personalized therapy. This approach is crucial for managing food allergies and anaphylaxis, requiring updated allergologist training.

Keywords:
Allergen componentsAllergensAllergic rhinitisCross reactionsMolecular allergology

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Area of Science:

  • Allergy and immunology
  • Clinical diagnostics

Background:

  • Molecular component-resolved diagnostics (CRD) are increasingly adopted in routine allergy care.
  • CRD enhances diagnostic accuracy by identifying specific allergen molecules.
  • Understanding allergenicity is key to differentiating true sensitization from cross-reactivity in polysensitized individuals.

Purpose of the Study:

  • To highlight the growing role of CRD in clinical allergology.
  • To emphasize CRD's utility in personalized allergy management.
  • To underscore the need for updated training for allergologists in molecular allergology.

Main Methods:

  • Component-resolved diagnostics (CRD) utilize specific allergen molecules for testing.
  • Analysis of patient sensitization profiles against individual molecules.
  • Risk stratification for food allergies and anaphylaxis based on molecular findings.

Main Results:

  • CRD improves diagnostic accuracy in allergy cases.
  • CRD facilitates personalized therapy by identifying causative allergens.
  • CRD aids in distinguishing true sensitization from cross-reactions.
  • CRD is valuable for assessing risks in food allergies and anaphylaxis.

Conclusions:

  • CRD is a vital tool in modern allergological practice.
  • Personalized therapeutic strategies are enhanced by CRD.
  • Continuous education in molecular allergology is essential for clinicians.