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Oxidative Stress

Effects of continuous and intermittent magnetic fields on oxidative parameters in vivo.

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Coşkun S, Balabanli B, Canseven A, Seyhan N. · 2009

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Power-frequency magnetic fields triggered oxidative stress in multiple organs within just four days of exposure in this animal study.

Plain English Summary

Summary written for general audiences

Researchers exposed guinea pigs to 50 Hz magnetic fields (power line frequency) for four hours daily over four days. Both continuous and pulsed exposures increased cellular damage markers in blood, liver, and brain tissue, suggesting power-frequency fields can trigger harmful oxidative stress.

Why This Matters

This study adds to the growing body of evidence that extremely low frequency magnetic fields can trigger biological effects at the cellular level. The 1.5 milliTesla exposure used here is significantly higher than typical residential exposures (which range from 0.01 to 0.2 mT near power lines), but it's within the range that occupational workers might encounter. What makes this research particularly significant is that it demonstrates measurable oxidative stress in multiple organ systems after just four days of exposure. The finding that continuous and intermittent fields produce different patterns of cellular damage suggests the biological effects are complex and frequency-dependent. For you, this reinforces the importance of the precautionary principle when it comes to EMF exposure, especially given that oxidative stress is implicated in numerous chronic diseases.

Exposure Details

Magnetic Field
1.5 mG
Source/Device
50 Hz
Exposure Duration
4 h/day for 4 days

Exposure Context

This study used 1.5 mG 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: 1.5 mGExtreme Concern - 5 mGFCC Limit - 2,000 mGEffects observed in the Severe Concern rangeFCC limit is 1,333x higher than this level
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

Study Details

Continuous and intermittent 50 Hz, 1.5 mT magnetic field with the exposure period of 4 h/day for 4 days was used to investigate its possible effect on adult guinea pigs.

Tissues and plasma specimens were assessed by biochemical parameters. Malondialdehyde (MDA), glutath...

While intermittent magnetic field was effective on plasma lipid peroxidation, continuous magnetic f...

These results indicate that both the intermittent and continuous magnetic field exposures affect various tissues in a distinct manner because of having different tissue antioxidant status and responses.

Cite This Study
Coşkun S, Balabanli B, Canseven A, Seyhan N. (2009). Effects of continuous and intermittent magnetic fields on oxidative parameters in vivo. Neurochem Res. 34(2):238-243, 2009.
Show BibTeX
@article{s_2009_effects_of_continuous_and_235,
  author = {Coşkun S and Balabanli B and Canseven A and Seyhan N. },
  title = {Effects of continuous and intermittent magnetic fields on oxidative parameters in vivo.},
  year = {2009},
  doi = {10.1007/s11064-008-9760-3},
  url = {https://link.springer.com/article/10.1007/s11064-008-9760-3},
}
DOI: 10.1007/s11064-008-9760-3

Cited By (35 papers)

Quick Questions About This Study

Research shows 50 Hz magnetic fields from power lines can trigger oxidative stress in living tissue. A 2009 study found that four-hour daily exposures increased cellular damage markers in blood, liver, and brain tissue of test animals, indicating harmful oxidative processes.
Studies suggest 50 Hz magnetic fields may harm liver tissue through oxidative damage. Research found that both continuous and intermittent power-frequency exposures increased lipid peroxidation in liver tissue, a marker of cellular damage from oxidative stress.
Research indicates power line frequency magnetic fields can impact brain tissue through oxidative stress mechanisms. A controlled study found that 50 Hz exposures increased cellular damage markers in brain tissue, suggesting potential neurological effects from power-frequency fields.
Magnetic field exposure can increase oxidative stress markers in multiple organs. Research shows 50 Hz fields affect plasma, liver, and brain tissue differently, with continuous exposure raising certain blood markers while intermittent exposure increases lipid damage indicators.
Power frequency magnetic fields appear to trigger oxidative stress pathways that damage cells. Studies show 50 Hz exposures increase lipid peroxidation and other oxidative markers in blood and organs, indicating cellular damage from electromagnetic field exposure.