The effect of treatment with SrCl2 (10 Mg 100 g-1) on rats 15 min prio
r to the whole body gamma-irradiation (7.5 Gy) was studied. The hazard
ous effects of irradiation were greatly corrected in the treated group
. The hyperglycemic effect and liver glycogen accumulation in the untr
eated group decreased to normal level. The enzymatic activities of ser
um alkaline phosphatase, alanine and aspartate aminotransferases, and
lactate dehydrogenase were greatly affected, showing insignificant cha
nges in the treated group of animals. Life span calculated on 50% surv
ival was also significantly elongated by 36.3%. These results show the
potentiality of SrCl2 as a radioprotective agent. A proposed mechanis
m is discussed.