immunoglobulin E

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Thân thiện
Definition
  1. Noun:
    • A type of antibody: Immunoglobulin E is one of the five main classes of antibodies (immunoglobulins) produced by the immune system. It is primarily found in the skin, lungs, and mucous membranes.
    • Involved in allergic reactions: This antibody plays a central role in the body's response to allergens and is responsible for triggering allergic symptoms, such as those seen in hay fever, asthma, and anaphylaxis.
Usage Examples
  • Noun:
    • A blood test can measure the level of immunoglobulin E to help diagnose allergies.
    • Immunoglobulin E binds to allergens and then to mast cells, causing the release of histamine.
Advanced Usage
  • "IgE-mediated reaction": This term describes an allergic reaction that is specifically triggered by the binding of immunoglobulin E to an allergen.
    • Anaphylaxis is a severe, IgE-mediated reaction.
Variants and Related Words
  • IgE: The common abbreviation for immunoglobulin E.
    • The patient has elevated IgE levels.
  • Immunoglobulin: The general term for the class of proteins to which IgE belongs. The other main classes are IgA, IgD, IgG, and IgM.
Synonyms
  • Antibody E: A less common synonym referencing its class.
  • Reagin: An older term sometimes used for IgE, particularly in the context of allergy testing.
Related Phrases
  • IgE antibody: A phrase specifying the type of antibody.
    • The test detected IgE antibodies to peanuts.
  • Total IgE: Refers to the overall level of immunoglobulin E in the blood, not specific to a single allergen.
    • Her total IgE was very high, indicating a likely allergic condition.
Noun
  1. one of the five major classes of immunoglobulins; present primarily in the skin and mucous membranes

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