It has been shown in experiments with three species of laboratory animals that an early administration (during the first hours following irradiation) of human recombinant interleukins 1 alpha and 1 beta separately (to mice, rats) or in combination with antibiotic therapy (dogs) substantially increases survivability, favours a more rapid regeneration of the cellular content of the bone marrow and peripheral blood, intensifies the processes of endogenous colony formation and DNA synthesis in the bone marrow and liver and lowers the expressivity of radiation-induced endotoxemia. The significance of using cytokines in the system of remedial measures in radiation pathology is discussed.

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