[Changes in lipid metabolism in rats with radiation sickness and a pronounced intestinal syndrome following local irradiation of the abdominal region. Fatty acid composition of the blood and tissue phospholipids].

Local irradiation of rat abdomen (13.5 Gy) caused similar changes in fatty-acid composition of phospholipids in the liver, thymus and brain, that is: (a) a decrease in the polyunsaturated fatty acid content in 4 h, (b) a hypercompensatory increase in the content of polyunsaturated fatty acids (excluding thymus) in 24 h, the ratio between essential fatty acids and their derivatives being changed towards accumulation of the latter, and (c) a trend toward normalization in 72 h.