Home General Physiology and Biophysics 2017 General Physiology and Biophysics Vol.36, No.4, p.407–414, 2017

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Founded: 1982
ISSN 1338-4325 (online)
ISSN 0231-5882 (print)
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General Physiology and Biophysics Vol.36, No.4, p.407–414, 2017

Title: In vitro non-thermal oxidative stress response after 1800 MHz radiofrequency radiation
Author: Ana Marija Marjanovic Cermak, Ivan Pavicic, Blanka Tariba Lovakovic, Alica Pizent, Ivancica Trosic
Abstract: In this study possible connection between radiofrequency exposure (RF) and development of oxidative stress was investigated by measuring impairment in cellular oxidation-reduction balance immediately after RF exposure. Fibroblast cells V79 were exposed for 10, 30 and 60 minutes to 1800 MHz RF radiation. Electric field strength was 30 V/m and specific absorption rate (SAR) was calculated to be 1.6 W/kg. Electromagnetic field was generated within Gigahertz Transversal Electromagnetic Mode cell (GTEM) equipped by signal generator, amplifier and modulator. Cell viability was determined by CCK-8 colorimetric assay and level of reactive oxygen species (ROS) was detected by dihydroethidium staining. Reduced glutathione (GSH) and glutathione peroxidase (GSH-Px) were used to assess cell antioxidant activity while lipid oxidative damage was evaluated measuring concentration of malondialdehyde. Viability of V79 cells remained within normal physiological values regardless of exposure time. Increased level of superoxide radicals was detected after 60-min exposure. Significantly higher GSH level was observed immediately after 10-min exposure with higher but insignificant activity of GSH-Px. Lipid oxidative damage in exposed cell samples was not observed. Short-term RF exposure revealed transient oxidation-reduction imbalance in fibroblast cells following adaptation to applied experimental conditions.
Keywords: Fibroblast cells — Viability — Glutathione — Malondialdehyde — Oxidation-reduction balance
Published online: 13-Sep-2017
Year: 2017, Volume: 36, Issue: 4 Page From: 407, Page To: 414
doi:10.4149/gpb_2017007


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