Effects of various extremely low frequency magnetic fields on the free radical processes, natural antioxidant system and respiratory burst system activities in the heart and liver tissues.
Canseven AG, Coskun S, Seyhan N · 2008
View Original AbstractMagnetic field exposure at power line frequencies disrupted antioxidant defenses in heart and liver tissues, even with relatively short daily exposures.
Plain English Summary
Researchers exposed guinea pigs to household power line magnetic fields (50 Hz) for several hours daily over five days. The magnetic field exposure disrupted cellular protective systems and increased damage markers in heart and liver tissues, suggesting everyday power frequency fields may harm vital organs.
Why This Matters
This research adds important evidence to our understanding of how power frequency magnetic fields affect cellular health at the organ level. The magnetic field strengths tested (1-3 milliTesla) are significantly higher than typical household exposures, which range from 0.01-0.2 milliTesla near appliances, but are comparable to levels found directly under power lines or in certain occupational settings. What makes this study particularly noteworthy is its demonstration that the body's antioxidant defense systems respond differently depending on both field strength and exposure duration. The researchers found that oxidative stress markers like malondialdehyde increased in some exposure groups while antioxidant levels like glutathione showed complex patterns of increase and decrease. This suggests that EMF exposure may push cellular systems into a state of metabolic stress, forcing them to work harder to maintain normal function.
Exposure Details
- Magnetic Field
- 1,2 and 3 mG
- Source/Device
- 50 Hz
- Exposure Duration
- 4 h/day and 8 h/day for 5 days
Exposure Context
This study used 1,2 and 3 mG for magnetic fields:
- 50Kx above the Building Biology guideline of 0.2 mG
- 10Kx above the BioInitiative Report recommendation of 1 mG
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 Details
In the present study, the effects of extremely low frequency (ELF) electromagnetic fields (EMF) were investigated on free radical levels, natural antioxidant systems and respiratory burst system activities in heart and liver tissues of guinea pigs exposed to 50 Hz MFs of 1, 2 and 3 mT for 4 h/day and 8 h/day for 5 days by measuring malondialdehyde (MDA), nitric oxide (NO), glutathione (GSH) levels and myeloperoxidase (MPO) activity.
A total of sixty-two male guinea pigs, 10-12 weeks old were studied in seven groups as control and e...
MDA levels increased in liver in groups II and IV, but decreased in group VII for both liver and he...
From the results, it can be concluded that the intensity and exposure duration of MFs are among the effective conditions on the formation of free radicals and behaviour of antioxidant enzymes.
Show BibTeX
@article{ag_2008_effects_of_various_extremely_328,
author = {Canseven AG and Coskun S and Seyhan N},
title = {Effects of various extremely low frequency magnetic fields on the free radical processes, natural antioxidant system and respiratory burst system activities in the heart and liver tissues.},
year = {2008},
url = {http://nopr.niscair.res.in/handle/123456789/2374},
}