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The effects of exposure of rats to a 2100 MHz electromagnetic field on oxidative stress and DNA damage in the brain should be investigated.
Female rats were divided into the following groups: 1) exposure to the electromagnetic field for 2 weeks (n=9), 2) sham exposure for 2 weeks (n=6), 3) exposure to the electromagnetic field for 8 weeks (n=9), 4) sham exposure for 8 weeks (n=6). Two days after the last respective (sham) exposure, the rats were anesthetized, killed and examined.
|Modulation type||cf. additional information|
|Distance between exposed object and exposure source||12 cm|
|Sham exposure||A sham exposure was conducted.|
The amount of oxidative DNA damage was significantly increased after two weeks of exposure (group 1) compared to the control group (group 2), whereas no differences were found in lipid peroxidation.
After 8 weeks of exposure (group 3), oxidative DNA damage as well as lipid peroxidation were significantly reduced compared to the control group (group 4).
The authors conclude that an acute exposure of rats to a 2100 MHz electromagnetic field could cause oxidative DNA damage in the brain. However, chronic exposure could also lead to the adaptation and stimulation of DNA repair mechanisms.