[Studies of acrosin and human sperm trypsin inhibitor activity in human semen. I. Relations to sperm density].

Report concerning the sperm examination of 825 patients of the Dept. for Andrology. The acrosin as well as the human sperma trypsin inhibitor activity were investigated. The results were related to sperm density. It was found that acrosin activity was significantly dependent on sperm density. For the human sperma trypsin inhibitor activity this relationship could not be established, although lower values were found by sperm deficiency and higher values by high sperm density.