[The effect of ionizing radiation in a wide dosage range on the structural-functional characteristics of the protein and lipid components of erythrocyte plasma membranes].

The erythrocyte ghosts were irradiated with doses of 4 x 10(-3) Gy-10(3) Gy. Changes in the membrane lipid microviscosity, membrane proteins' structural mobility, membrane surface potential and intensity of the lipid peroxidation processes were determined. It has been established that the features of membrane structural changes are characterised, by polyphase changes of examined parameters.

[The effect of ionizing radiation on Ca ATPase of erythrocyte membranes].

Erythrocyte ghosts were irradiated with doses of 4 x 10(-3)-10(3) Gy. The activity of Ca(2+)-ATPase, the kinetic characteristics of enzyme reaction, the Hill's coefficient, the association constant and a number of La3+ linking centers were determined. The structural--functional peculiarities of Ca(2+)-ATPase changes under exposure to 4 x 10(-3) and 40 Gy of ionizing radiation have been established.