The aspermatogenic antigen in experimental allergic orchitis in guinea-pigs.

Abstract

Purification of the aspermatogenic factor of guinea-pig testes has resulted in an antigen capable of inducing circulating antibody, delayed skin reactivity and a testis lesion on injection of as little as 5 μg into guinea-pigs. Chemical analysis of the fraction revealed a nitrogen content of 7.7 per cent and a polysaccharide content of 38 per cent.