[The effect of ultrahigh frequency electromagnetic fields on the reduction of ferricyanide by human erythrocytes in the presence of methylene blue].

Effect of microwave radiation with the frequency of 1000 +/- 10 MHz and specific absorption rate of 220-580 mV/g on the ferricyanide reduction by human red blood cells in the presence of methylene blue (carrier of oxidation-reduction equivalents through the membrane) was studied at different temperatures in the region of 23-34 degrees C. The temperature dependence of the ferricyanide reduction rate in Arrhenius plots shows two sharp "anomalous" sites with apparently negative activation energy at 26-27 and 29-30 degrees C. Broadness and expression of the "anomalous" sites increased with an increase of the blood storage time. The increase of the ferricyanide reduction rate under microwave irradiation was observed only in the temperature regions corresponding to the "anomalous" sites of the temperature dependence.