[Effects of gamma irradiation on biosynthesis of nuclear matrix proteins of the liver in pregnant rats and their embryos].

A study was made of the incorporation of 35S-methionine into nuclear matrix proteins of hepatic cells of pregnant rats and their embryos subjected to single gamma-irradiation (60Co, 1 and 2 Gy, 0.0233 Gy/s) on days 3, 13 and 17 of pregnancy and embryogenesis. On day 21 of pregnancy and embryogenesis a decrease in the rate of incorporation of 35S-methionine into nuclear matrix proteins was shown to be a function of radiation dose and time of pregnancy and embryogenesis on the moment of exposure.