Protective Effect of Adrenal Steroid Administration on Irradiated Mice

Abstract
Young male and female DBA mice were exposed to 500 r head radiation or whole-body radiation. A correlation was observed between head and whole-body radiation as judged by the mortality rates. In both instances a 500 r dose gave a 100% mortality rate, but mice receiving whole-body radiation succumbed sooner. Mice receiving 500 r head radiation and treated before or after radiation with cortisone or desoxycorticosterone showed evidence that both of these compounds afford protection from the lethal effect of ionizing radiation.