The detailed summary of this article is not available in your language or incomplete. Would you like to see a complete translation of the summary? Then please contact us →
The effects of exposure of male rats to a 50 Hz magnetic field on fertility should be investigated.
Male rats were divided into 4 groups (n=7 each): Rats were either killed immediately and examined after exposure to investigate acute effects (group 1) or 48 days after exposure to detect delayed effects (group 2). Each exposure group had its own sham exposure group (groups 3 and 4).
ばく露時間: continuous for 21 days
|ばく露時間||continuous for 21 days|
|チャンバの詳細||plastic cages with food and water containers|
|ばく露装置の詳細||a homogenous magnetic field was generated by 4 solenoids of 270 turns of electrically insulated 2.2 mm copper wire, respectively, wound around a copper cylindrical chamber of 55 cm external diameter; rats were placed at the center of the solenoids in their cages; animals were kept in a 12 h light/12 h dark cycle, at constant temperature of 25 °C|
|Sham exposure||A sham exposure was conducted.|
|磁束密度||100 µT||-||測定値||-||± 10 µT|
There was a significant decrease in testes weights, sperm motility, sperm count, percentages of normal sperms and live sperms as well as in the enzyme activities of superoxide dismutase and catalase in the exposure groups (groups 1 and 2) compared to the respective sham exposure groups (groups 3 and 4). The alpha-tocopherol level was significantly decreased and serum testosterone and L-ascorbate levels were significantly increased directly after exposure (group 1) compared to the sham exposure group, but not after further 48 days (group 2).
Histopathological examination of the testes showed a disruption in its architecture with an increase in Leydig cell number and activity in group 1 compared to the sham exposure, whereas in group 2, there were high rates of apoptosis in the germ cell layers compared to the sham exposure.
The authors conclude that exposure of male rats to a 50 Hz magnetic field might impair fertility related parameters via oxidative stress.