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Oxidative Stress

Effects of acute electromagnetic field exposure and movement restraint on antioxidant system in liver, heart, kidney and plasma of Wistar rats: a preliminary report.

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Martínez-Sámano J, Torres-Durán PV, Juárez-Oropeza MA, Elías-Viñas D, Verdugo-Díaz L. · 2010

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Two hours of 60 Hz EMF exposure reduced SOD activity in plasma and GSH content in heart and kidney in rats, but did not induce immediate lipid peroxidation.

Plain English Summary

Summary written for general audiences

Researchers exposed adult male Wistar rats to extremely low frequency electromagnetic fields (60 Hz, 2.4 mT) for two hours to evaluate early effects on antioxidant systems in plasma, liver, kidney, and heart. SOD activity was lower in the plasma of restrained and EMF-exposed animals compared to unrestrained rats. There were no significant differences in CAT activity and TBARS levels among the experimental groups versus the control group. The researchers noted that oxidative stress induced by movement restraint was stronger than that produced by EMF.

Why This Matters

Adult male Wistar rats were divided into restrained and unrestrained groups, with half of each group also exposed to EMF, creating four experimental conditions. Restrained animals were confined in an acrylic tube for 120 minutes, and measurements were taken immediately after treatment. GSH concentration was significantly lower in the heart of all experimental animals compared to the control group, and the decrease was higher in the liver of restrained animals. The conclusion used cautious language, stating that EMF exposure 'might' alter free radical metabolism.

Exposure Details

Magnetic Field
2.4 mT
Source/Device
60 Hz
Exposure Duration
2 h

Exposure Context

This study used 2.4 mT for magnetic fields:

Building Biology guidelines are practitioner-based limits from real-world assessments. BioInitiative Report recommendations are based on peer-reviewed science. Check Your Exposure to compare your own measurements.

Where This Falls on the Concern Scale

Study Exposure Level in ContextStudy Exposure Level in ContextThis study: 2.4 mTExtreme Concern - 5 mGFCC Limit - 2,000 mGEffects observed in the Extreme Concern range (Building Biology)This level is 12 times the FCC limit
A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 60 Hz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 60 HzCell phones~1 GHzWiFi2.4 GHz5G mm28 GHzLogarithmic scale

Study Details

The aim of the present study was to evaluate the early effects of acute (2 h) exposure to extremely low frequency electromagnetic fields (ELF-EMF), as well as movement restraint (MR) and the combination of both on the antioxidant systems in the plasma, liver, kidney, and heart of rats.

Twenty-four adult male Wistar rats were divided in two groups, restrained and unrestrained. The rest...

GSH concentration was significantly lower in the heart of all experimental animals when compared to ...

Two hours of 60 Hz EMF exposure might immediately alter the metabolism of free radicals, decreasing SOD activity in plasma and GSH content in heart and kidney, but does not induce immediate lipid peroxidation. Oxidative stress induced by movement restraint was stronger than that produced by EMF.

Cite This Study
Martínez-Sámano J, Torres-Durán PV, Juárez-Oropeza MA, Elías-Viñas D, Verdugo-Díaz L. (2010). Effects of acute electromagnetic field exposure and movement restraint on antioxidant system in liver, heart, kidney and plasma of Wistar rats: a preliminary report. Int J Radiat Biol. 86(12):1088-1094, 2010.
Show BibTeX
@article{j_2010_effects_of_acute_electromagnetic_421,
  author = {Martínez-Sámano J and Torres-Durán PV and Juárez-Oropeza MA and Elías-Viñas D and Verdugo-Díaz L.},
  title = {Effects of acute electromagnetic field exposure and movement restraint on antioxidant system in liver, heart, kidney and plasma of Wistar rats: a preliminary report.},
  year = {2010},
  doi = {10.3109/09553002.2010.501841},
  url = {https://www.tandfonline.com/doi/abs/10.3109/09553002.2010.501841},
}
DOI: 10.3109/09553002.2010.501841

Cited By (71 papers)

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Quick Questions About This Study

The study used extremely low frequency electromagnetic fields at 60 Hz and 2.4 mT for two hours.
EMF exposure did not induce immediate lipid peroxidation, and there were no significant differences in TBARS levels among the experimental groups.
Oxidative stress induced by movement restraint was stronger than that produced by EMF.
Researchers measured reduced glutathione, catalase, superoxide dismutase, and thiobarbituric acid reactive substances in tissues immediately after treatment.
GSH concentration was significantly lower in the heart of all experimental animals when compared to the control group.