STUDIES WITH IMMUNE-ADHERENCE .1. TITRATION OF HUMAN COMPLEMENT WITH A RICE STARCH SYSTEM

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  • 1 January 1962
    • journal article
    • research article
    • Vol. 5  (1) , 181-+
Abstract
A method has been developed and standardized for the titration of human complement using the immune-adherence system with rice starch as the antigen. When starch granules are presensitized with normally occurring antibody and react with serum dilutions, the endpoint as determined by 50 per cent adherence yields an estimate of complement titre, reproducible within 20 per cent. This system produces titres of about 400 C''l-A50 units per ml. with human serum, and about 200 C''l-A50 units per ml. with guinea-pig serum.
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