reagin

enUK

re·a·gin

R0069600 (rē-ā′jĭn)n.1. An antibody found in the blood of individuals having a genetic predisposition to allergies.2. A substance present in the blood of individuals having a positive serological test for syphilis.

[reag(ent) + -in.]

re′a·gin′ic (rē′ə-jĭn′ĭk) adj.re′a·gin′i·cal·ly adv.

reagin

(ˈrɪədʒɪn) n (Biochemistry) immunol a type of antibody that is formed against an allergen and is attached to the cells of a tissue. The antigen–antibody reaction that occurs on subsequent contact with the allergen causes tissue damage, leading to the release of histamine and other substances responsible for an allergic reaction[C20: from German reagieren to react + -in]

re•a•gin

(riˈeɪ dʒɪn, -gɪn)

n. 1. an antibody formed in response to syphilis in various blood tests for the disease. 2. an antibody found in certain human allergies, as hay fever and asthma. [1910–15; < German Reagin=reag(ieren) to react + -in -in¹]

Thesaurus

Noun

reagin - an immunoglobulin E that is formed as an antibody against allergens (such as pollen); attaches to cell membranes causing the release of histamine and other substances responsible for the local inflammation characteristic of an allergyIgE, immunoglobulin E - one of the five major classes of immunoglobulins; present primarily in the skin and mucous membranes

Translations

reagin

[re´ah-jin] antibody of a specialized immunoglobulin class (IgE) which attaches to tissue cells of the same species from which it is derived, and which interacts with its antigen to induce the release of histamine and other vasoactive amines. A form of cytotropic antibody, it is present in the serum of naturally hypersensitive individuals and can confer specific immediate (type I) hypersensitivity in nonreactive individuals. adj., adj reagin´ic.

re·a·gin

(rē-ā'jin), 1. Wolff-Eisner term for antibody. 2. Old term for the "Wassermann" antibody; not to be confused with the Prausnitz-Küstner antibody. 3. Antibodies that mediate immediate hypersensitivity reactions (IgE in humans). 4. Synonym(s): homocytotropic antibody

reagin

(rē-ā′jĭn)n.1. An antibody found in the blood of individuals having a genetic predisposition to allergies.2. A substance present in the blood of individuals having a positive serological test for syphilis.

re′a·gin′ic (rē′ə-jĭn′ĭk) adj.re′a·gin′i·cal·ly adv.

re·a·gin

(rē-ā'jin) 1. Wolff-Eisner term for antibody. 2. Antibodies that mediate immediate hypersensitivity reactions (IgE in humans). 3. Synonym(s): homocytotropic antibody.

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Words related to reagin

noun an immunoglobulin E that is formed as an antibody against allergens (such as pollen)

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