Radiofrequency fields of cellular phones may affect biological systems by increasing free radicals, which appear mainly to enhance lipid peroxidation, and by altering the antioxidase activities of human blood thus leading to oxidative stress.
Modulation type: pulsed
Exposure duration: continuous for 1, 2 and 4 h
|Exposure duration||continuous for 1, 2 and 4 h|
No parameters are specified for this exposure.
The findings showed that the plasma level of lipid peroxide was significantly increased after 1, 2 and 4 h of exposure to radiofrequency fields of the cellular phone in standby position. Moreover, the activities of superoxide dismutase and total glutathione peroxidase showed significant reduction while the activity of catalase did not decrease significantly.
These data indicate that acute exposure to radiofrequency fields of cellular phones may modulate the oxidative stress of free radicals by enhancing lipid peroxidation and reducing the activation of superoxide dismutase and total glutathione peroxidase, which are free radical scavengers. Therefore, these findings support the interaction of radiofrequency fields of cellular phones with biological systems.