o antigen
61antigen — (an tī jen) A foreign (nonself) substance (such as a protein, nucleoprotein, polysaccharide, or sometimes a glycolipid) to which lymphocytes respond; also known as an immunogen because it induces the immune response …
62antigen shift — Abrupt change in surface antigens expressed by a species or variety of organisms. Usually seen in microorganisms where the change may allow escape from immune recognition. Antigenic drift is a more gradual change. See antigenic variation …
63Antigen, prostate specific (PSA) — A test used to screen for cancer of the prostate and to monitor treatment. PSA is a protein produced by the prostate gland. Although most PSA is carried out of the body in semen, a very small amount escapes into the blood stream. The PSA test is… …
64antigen — Any substance that, as a result of coming in contact with appropriate cells, induces a state of sensitivity and/or immune responsiveness after a latent period (days to weeks) and that reacts in a demonstrable way with antibodies and/or immune… …
65antigen X — UDP N acetylglucosamine pyrophosphorylase …
66antigen excess — see precipitin reaction, under reaction …
67antigen gain — the acquisition by cells of new antigenic determinants not normally present or not normally accessible in the parent tissue …
68antigen — Synonyms and related words: Rh factor, Rh negative, Rh positive, Rh type, Rhesus factor, acquired immunity, active immunity, agglutinin, allergen, anaphylactin, antiantibody, antibody, antiserum, antitoxic serum, antitoxin, antivenin, arterial… …
69antigen — an|ti|gen Mot Pla Nom masculí …
70Antigen — Modgifts , modgiftdannende …
