Abstract
The paper represents the results of research of some functional indices of blood plasma and erythrocytes in rats obtained on days 1 and 5 after exposure of the organism to low intensive electromagnetic irradiation (EMI) with 900 MHz frequency using the following two irradiation schemes: single 2 h/1 day and fractional 0.5 h/4 days. According to the data obtained, a significant increase of lipid peroxidation (LPO) intensity is registered in animal erythrocyte membranes after the influence of 900 MHz frequency EMI irrespective of the scheme applied. Inhibition of the activity of low-molecular non-enzymatic water-soluble blood antioxidants and enhancement of blood plasma LPO processes is observed on the background of a single prolonged exposure. Stimulation of the antioxidant activity with an abrupt decrease in the blood LPO activity takes place after exposure to fractional irradiation. Single long-lasting exposure, rather than intermittent shortterm exposure to 900 MHz frequency EMI facilitates the appearance of shifts in the activity of Ca(2+)-dependent K(+)-channels of erythrocytes and hyperpolarization of erythrocytes membranes.
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