Objective: 

The aim of this study was to investigate the effect of 100 mT and 500 mT ELF magnetic field, on the oxidative stress parameters of some internal organs of rats.

Methods: 

The study was carried out on 30 male Sprague–Dawley adult male rats. Rats in the first (n: 10) and the second (n: 10) experimental groups were respectively exposed to 100 mT and 500 mT ELF magnetic fields for 2 h/day for 10 months. At the end of the ten months of exposure some of the oxidative stress parameters such as catalase, myeloperoxidase, malondialdehyde (MDA), total oxidant status (TOS), total antioxidant capacity (TAC) and oxidative stress index (OSI) were measured in liver, lung and kidney of rats in the sham and two exposed groups.

Results: 

Myeloperoxidase and OSI decreased in the kidney of the rat exposed to 100 mT and 500 mT ELF magnetic fields (p<0.05). However, increase of TAC in the kidney of rats exposed to 100 mT was found to be significant (p<0.05). By the way, decrease of TAC in the lung of the rats exposed to 500 mT ELF magnetic field was found significant (p<0.05). On the other hand, OSI decreased in the liver of rats exposed to 100 mT and 500 mT ELF magnetic fields while TAC increased in the liver of rats exposed to 100 mT magnetic field (p<0.05).

Conclusions: 

Long-term exposure of 100 mT and 500 mT ELF magnetic fields can alter some of the oxidative stress parameters in the liver, lung and kidney of the rats.