Immunoglobulin A
A major class of immunoglobulins found in serum and external body secretions such as saliva, tears, and sweat as well as in the gastrointestinal, respiratory, and genitourinary tracts. Abbreviated IgA.

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immunoglobulin A n IGA

Medical dictionary. 2011.

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  • Immunoglobulin A — (IgA) is an antibody playing a critical role in mucosal immunity. More IgA is produced in mucosal linings than all other types of antibody combined. [cite journal |author=S Fagarasan and T Honjo |title=Intestinal IgA Synthesis: Regulation of… …   Wikipedia

  • immunoglobulin A — immunoglobulin im mu*no*glob ulin ([i^]m m[ u]*n[ o]*gl[o^]b [ u]*l[i^]n) n. (1953) any one of a class of globular proteins which are antibodies and are produced by the immune system in animals. Note: The immunoglobulins form a series of related… …   The Collaborative International Dictionary of English

  • immunoglobulin A — noun one of the most common of the five major classes of immunoglobulins; the chief antibody in the membranes of the gastrointestinal and respiratory tracts • Syn: ↑IgA • Hypernyms: ↑immunoglobulin, ↑Ig, ↑immune serum globulin, ↑immune gamma… …   Useful english dictionary

  • Immunoglobulin A — Schematische Darstellung des Immunglobulin A als Dimer: H Kette (1), L Kette (2), J Kette (3) und Sekretionsstück (4). Als Immunglobulin A (IgA) bezeichnet man einen Antikörper, der hauptsächlich in den externen Körperflüssigkeiten (zum Beispiel… …   Deutsch Wikipedia

  • immunoglobulin A nephropathy — IgA n …   Medical dictionary

  • Selective immunoglobulin A deficiency — Infobox Disease Name = PAGENAME Caption = The dimeric IgA molecule. 1 H chain, 2 L chain, 3 J chain, 4 secretory component DiseasesDB = 29569 ICD10 = ICD10|D|80|2|d|80 ICD9 = ICD9|279.01 ICDO = OMIM = 137100 MedlinePlus = 001476 eMedicineSubj =… …   Wikipedia

  • Linear immunoglobulin A dermatosis — Linear IgA dermatosis is a very rare autoimmune blistering disorder, which manifests via blistering of the skin and the mucous membranes. An autoimmune disorder is a malfunction of the body s immune system causing the body to attack its own… …   Wikipedia

  • secretory immunoglobulin A — secretory IgA; the predominant immunoglobulin in secretions (oral, nasal, bronchial, urogenital, and intestinal mucous secretions and tears, saliva, and milk), a dimer containing the J chain and the secretory component (SC) …   Medical dictionary

  • Immunoglobulin — A protein produced by plasma cells and lymphocytes. Immunoglobulins are an essential part of the body s immune system which attach to foreign substances, such as bacteria, and assist in destroying them. Abbreviated Ig. The classes of… …   Medical dictionary

  • immunoglobulin — im mu*no*glob ulin ([i^]m m[ u]*n[ o]*gl[o^]b [ u]*l[i^]n) n. (1953) any one of a class of globular proteins which are antibodies and are produced by the immune system in animals. Note: The immunoglobulins form a series of related proteins which… …   The Collaborative International Dictionary of English

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