ESTRONASE ACTIVITY OF HUMAN AND RODENT TISSUES1

Abstract
The estronase activity of muscle, red cells, uterus, lung, and testes follows a similar pattern in man and the rodents. The very high activity of the testes, not hitherto reported, is found in all spp. studied. The range of estronase activity for the red cells of 9 female human bloods was ascertained. NaF has a marked inhibitory effect upon the estronase reaction in lung and testes but not in the uterus.