Radiation-induced oscillatory processes of lipide oxidation

The character of procedure of the dark stage of UV-induced oxidation of phospholipides (PL) and arachidonic acid (AA), which have been oxidated initially, is studied. The character of procedure of the dark stage was judged by the kinetics of optical density changes at a fixed wave length after irradiation and by changes in the PL absorption spectrum. The results of the work carried out have shown, that the dark stage of oxidation of initially oxidated PL and AA does exist. In the process of oxidation of PL liposomes a chemical reaction of further transformation of the products of peroxide oxidation of lipides (POL) might appear - a spacially heterogeneous distribution of chemical components being required for the reaction occurrence