- prozone phenomenon
- prozone phenomenon n the reduction in characteristic effect exhibited in the prozone of antibody-antigen mixtures called also prozone effect
Medical dictionary. 2011.
prozone phenomenon
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prozone — In the case of agglutination and of precipitation, the phenomenon in which visible reaction does not occur in mixtures of specific antigen and antibody because of antibody excess. SYN: prezone. * * * pro·zone … Medical dictionary
Ouchterlony double immuno diffusion — (or agar gel immunodiffusion) is a simple, rather dated method which is still considered to be the gold standard for detection of ENAs (Extractable Nuclear Antigens).A gel plate is cut to form a series of holes in the gel (The geometry is… … Wikipedia
Blocking antibody — A blocking antibody is an antibody that does not have a reaction when combined with an antigen, but prevents other antibodies from combining with that antigen. [MeshName|Blocking+Antibodies] The term can also be used for inhibiting antibody,… … Wikipedia
Ouchterlony double immunodiffusion — Picture of an Ouchterlony double immunodiffusion plate, after immunodiffusion has taken place. In this, titre value of an antigen is quantified. The central well has an antibody, and the surrounding wells have decreasing concentration of the… … Wikipedia
reaction — 1. The response of a muscle or other living tissue or organism to a stimulus. 2. The color change effected in litmus and certain other organic pigments by contact with substances such as acids or alkalies; also the property that such substances… … Medical dictionary
