[Reliability of autoregulatory mechanisms of biosystems as affected by ionizing radiation]

Reliability of biosystems in processes of adaptation and homeostasis after whole-body irradiation of rats with different doses was determined in terms of the stochastic process theory developed for the autoregulatory systems with random parameters. Fluctuations in the rate of spontaneous chemiluminescence of blood serum and accumulation of lipid peroxidation products by erythrocyte membranes of rat blood were taken as the initial material. The analysis of fluctuations of peculiar parameters permitted to predict the adaptability of the system and to make timely corrections.