Xanthinoxidase activity of thymocytes affected by X-radiation

Xanthinoxidase activity in thymocytes was studied at different time intervals after X-radiation with doses of 0.5, 2 and 8 Gy. It was shown that 3 h and later after irradiation, dehydrogenase activity of the enzyme was conversed into oxidase one. In the case of arresting the proteolysis by the effect of low doses (up to 0.5 Gy) and at early times the possibility of conversion of the enzyme into the dehydrogenase from was retained. The hyperactivity of the oxidase form of xanthinoxidase was probably a factor of expressing the proteolysis response and cell lysis