[Growth-stimulating effect of UF-irradiated blood. I. The radiation dose dependence of the initial growth potencies of blood and of the functional state of the target cells].

UV irradiation (UVI) of donor blood in the apparatus used in hospitals of the USSR with the therapeutic aim of autotransfusion of UV-irradiated blood (AUVIB), results in an increase of connective tissue cell growth potency: being added into culture media the supernatants of irradiated blood stimulate DNA-synthetic and proliferative activity of cultured human embryonic cells. The high activity of cells persists for about 2 days. The effect is great with low initial levels of cell proliferative activity. In this case the effect is maximum (about 125% of the control). It is suggested that the above effect may be involved in the mechanism of stimulation of regeneration processes in the organism after AUVIB.