Effect of 50 Hz electromagnetic field generated nearby high voltage alternating current transmission lines on prooxidant antioxidant balance in selected internal organs of rats

The impact of whole-body exposure to 50 Hz electromagnetic field generated nearby High Voltage Alternating Current transmission lines on prooxidant antioxidant balance in selected internal organs of male rats was estimated, by means of analysis of the contents of markers of membrane lipid peroxidation and oxidative stress: malone dialdehyde (MDA) and total oxidant capacity (TOC), respectively, as well as the activity of antioxidant enzymes: superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), glutathione reductase (GR) and glutathione S-transferase (GST), in homogenates of kidney, heart and lung tissue. It was found, that 4-week lasting exposure of rats to electromagnetic field with physical parameters generated by high voltage alternating current transmission lines causes a slight intensification of oxidant processes in the tissues of examined internal organs with accompanying compensatory, multidirectional changes of antioxidant enzymes activity, enabling the maintenance of prooxidant antioxidant balance only in heart tissue.