Impact of Selected Electromagnetic Fields on Prooxidant/Antioxidant Balance in Liver of Rats

Abstract

In this study the impact of electromagnetic field generated by mobile phone (f=900 MHz), electromagnetic field with industrial frequency generated by high voltage alternating current transmission lines (f=50 Hz, E=10 kV/m), and also simultaneous action of those fields on the prooxidant/ antioxidant balance in liver tissue of male rats was estimated by means of analysis of the contents of markers of oxidative stress and lipid peroxidation as well as the activity of selected antioxidant enzymes. It was concluded that 4-week lasting exposure of rats to electromagnetic field with physical parameters generated by mobile phones and to electromagnetic field with physical parameters generated by high voltage electric current transmission lines causes only a slight inhibition of oxidant processes in liver tissue with accompanying compensatory, multidirectional changes in antioxidant enzymes activity, enabling the maintenance of prooxidant/antioxidant balance. The most expressed changes in form of decrease in activity of the majority of antioxidant enzymes were observed in rats exposed to simultaneous action of both fields.