[The effect of fast electrons and menadione on the structural-functional status of Ehrlich ascites carcinoma cells in the early periods following irradiation].

Irradiation of Ehrlich ascites tumor cells stimulates oxygen consumption, and menadione suppresses cell respiration. The combined effect of the two factors produces an additional, in comparison with the effect of menadione alone, inhibition of the rate of oxygen consumption by cells. There is an additive effect of radiation and menadione with regard to the level of cell thiols and interphase cell death.