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Allergic Reactions

Allergic Reactions

Cross-reactivity

Cross-reactivity

Allergic Drug Reactions

Allergic Drug Reactions

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...

Hypersensitivities

Hypersensitivities

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...

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Related Experiment Video

Updated: Dec 28, 2025

Basophil Activation Test for Allergy Diagnosis

Basophil Activation Test for Allergy Diagnosis

Published on: May 31, 2021

Buckwheat: An Emerging Allergen

R Guzmán¹, J A Lemus¹, B Sastre²

¹Allergy department of Virgen del Valle Hospital, Toledo, Spain; Association for Allergological Research (AINALVIVA).

Journal of Investigational Allergology & Clinical Immunology

|February 21, 2020

Summary

No abstract available in PubMed .

Keywords:

Buckwheat Food allergy Quinoa

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