Altogether thirty-two (16 male, 181 +/- 10 g body weight and 16 female, 178 +/- 15 g body weight ), eight week-old rats were used.
Exposure duration: continuous for 4 h/day on 45 days
|Setup||pair of circular Helmholtz coils with a diameter of 42.75 cm, 21.375 cm apart, with 160 turns of 2.2 mm insulated copper wire, placed in a 70 cm x 65 cm x 65 cm Faraday cage; rats placed between the coils in a 26 cm x 17 cm x 13 cm polycarbonate cage mounted on electrically grounded metal nets|
|Sham exposure||A sham exposure was conducted.|
|magnetic flux density||1 mT||-||measured||-||+/- 0.05 mT|
Concerning malondialdehyde levels, there were no significant differences between the control groups and magnetic field exposure groups. However, female rats exposed to magnetic field showed significantly increased nitrotyrosine levels. This effect was not seen in exposed male rats.
These results suggest that the long-term extremely low frequency magnetic field exposure may enhance the oxidative/nitrosative stress in liver tissue of the female rats and could have a negative effect on cellular proteins rather than lipids by enhancing nitrotyrosine formation.