[Electric field effect of cell calcium]

The mechanism of biological effects of extremely-low-frequency electromagnetic field involve induced changes of Ca2+ transport through plasma membrane ion channels. In this paper we discusses the effects of externally applied Vi = 30 sin 100 pi t(mV) on the induced Ca2+ flux of HL-60 leukemia cells. After signal excitation or sham excitation the response of the intracellular calcium levels changes not only with the different concentrations of the activator but also with the activated states of cells.