[Correlation of the membrane and genetic effects of lipid peroxidation]

Linoleic acid hydroperoxides delivered to Ehrlich ascites tumor cells in vitro in a concentration reaching a threshold one (approximately 10(-5) M) sharply decrease their ionic permeability and the value of membrane capacity. With suprathreshold hydroperoxide concentrations (greater than 10(-5) M), the specific yield of chromosome aberrations and the share of aberrant cells increase while the mitotic index decreases. The correlation between general regularities and the equality of the threshold concentrations, with a reference to membrane and genetic effects of hydroperoxides, is thought to be an indication of a close relationship between membrane lesions caused by the development of induced lipid peroxidation and injury to genetic apparatus of the cell.