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Oxidative Stress

Effects of exposure to 50 Hz electric field at different strengths on oxidative stress and antioxidant enzyme activities in the brain tissue of guinea pigs.

No Effects Found

Türközer Z, Güler G, Seyhan N. · 2008

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Electric fields up to 5,000 V/m showed no significant oxidative stress in guinea pig brains after 24 hours of exposure.

Plain English Summary

Summary written for general audiences

Researchers exposed guinea pigs to 50 Hz electric fields at various strengths (from 2,000 to 5,000 volts per meter) for 8 hours daily over three days, then measured markers of oxidative stress in brain tissue. The study found no statistically significant changes in cellular damage markers or antioxidant enzyme activity, though some non-significant trends were observed. This suggests that short-term exposure to these electric field levels may not cause measurable oxidative stress in brain tissue.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 50 Hz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 50 HzCell phones~1 GHzWiFi2.4 GHz5G mm28 GHzLogarithmic scale

The study examined exposure from: 50 Hz Duration: three days, 8 h a day

Study Details

The aim of this study was to evaluate the possible effects of varied exposure to 50 Hz extremely low frequency (ELF) electric field (EF) on the lipid peroxidation levels and antioxidant enzyme activities in the brain homogenates of guinea pigs. Subjects were exposed to 2 kV/m, 2.5 kV/m, 3 kV/m, 3.5 kV/m, 4 kV/m, 4.5 kV/m and 5 kV/m electric fields for three days, 8 h a day in both vertical and horizontal directions.

Malondialdehyde (MDA), superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GSH-P...

Although the study showed several positive but non-significant findings (p > 0.05), we did not find ...

The present study observed effects of 50 Hz EF exposure on lipid peroxidation levels and antioxidant defense mechanisms but these were not statistically significant at the 95% confidence level. Further research on the effects ELF-EF exposure on lipid peroxidation levels and antioxidant defence mechanisms are warranted.

Cite This Study
Türközer Z, Güler G, Seyhan N. (2008). Effects of exposure to 50 Hz electric field at different strengths on oxidative stress and antioxidant enzyme activities in the brain tissue of guinea pigs. Int J Radiat Biol. 84(7):581-590, 2008.
Show BibTeX
@article{z_2008_effects_of_exposure_to_2832,
  author = {Türközer Z and Güler G and Seyhan N.},
  title = {Effects of exposure to 50 Hz electric field at different strengths on oxidative stress and antioxidant enzyme activities in the brain tissue of guinea pigs.},
  year = {2008},
  doi = {10.1080/09553000802203606},
  url = {https://www.tandfonline.com/doi/abs/10.1080/09553000802203606},
}
DOI: 10.1080/09553000802203606

Cited By (18 papers)

Quick Questions About This Study

No, a 2008 study found no significant oxidative stress in guinea pig brain tissue after exposure to 50 Hz electric fields at 2,000-5,000 volts per meter for 8 hours daily over three days. Cellular damage markers and antioxidant enzyme activity remained unchanged despite some non-significant trends.
Based on guinea pig research, short-term exposure to electric fields up to 5,000 volts per meter showed no significant cellular damage in brain tissue. However, researchers noted this was only a three-day study and called for more research on longer exposures.
Guinea pigs exposed to 50 Hz electric fields for 8 hours daily showed no statistically significant changes in antioxidant enzyme activity. The study measured various antioxidant defense mechanisms in brain tissue but found no meaningful alterations at any exposure strength tested.
No difference was found between vertical and horizontal electric field orientations in guinea pig brain tissue. The 2008 study showed no significant changes in lipid peroxidation or enzyme activity regardless of whether fields were applied vertically or horizontally.
Research on guinea pigs found no significant brain cell damage from electric fields ranging from 2,000 to 5,000 volts per meter. Lipid peroxidation levels, which indicate cellular damage, remained unchanged after three days of 8-hour daily exposures at these intensities.