At the time his PSA screening revealed only a slightly higher level of the antigen than the cut-off for his age group.
It is evident that some sort of an antibody results from the first protein injected and that it is specific for its own antigen.
So he didn't produce an antigen—he produced a disease instead.
Each dilution was made on the basis of the known protein concentration of the antigen.
Injections must be made and the antigen must go into the plants, not in single doses, if you please, but by the thousands.
In every series of tests the amount of antiserum was held constant and the amount of antigen was varied.
It is not apparent that the nature of the antigen would affect Ehrlichs theory of the formation of antibodies.
I shall not discuss the antigen or its method of administration.
The substance within the introduced cell which acts as a stimulus (antigen) to the body cells is called an agglutinogen.
The complement fixation test is like a Wassermann reaction, but the antigen should be polyvalent.
antigen an·ti·gen (ān'tĭ-jən)
Any of various substances, including toxins, bacteria, and the cells of transplanted organs, that when introduced into the body stimulate the production of antibodies. Also called allergen, immunogen.