[Proliferative activity and frequency of chromosome aberrations in the 1st mitosis in 50-, 60- and 70-hour cultures of irradiated lymphocytes and in mixed cultures of irradiated and non-irradiated cells].

Proliferative activity and frequency of chromosome aberrations during the first mitosis were comparatively studied in 50-, 60- and 70-h cultures of human peripheral blood lymphocytes after gamma-irradiation in vitro with doses of 6 and 8 Gy, and also in mixed cultures of irradiated and nonirradiated cells. It was shown that radiation-induced delay in proliferation is dissimilar for cells with different number of chromosome aberrations.