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Oxidative Stress

Protective effect of melatonin and vitamin E against prooxidative action of iron ions and static magnetic field

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Jajte J, Zmyślony M, Rajkowska E. · 2003

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Static magnetic fields amplify iron-induced cellular damage, but antioxidants like vitamin E can provide significant protection against this oxidative stress.

Plain English Summary

Summary written for general audiences

Researchers exposed rat blood cells to magnetic fields and iron ions to test for cellular damage. The combination significantly increased harmful oxidation in cells, but pre-treating cells with antioxidants like melatonin or vitamin E prevented most damage, suggesting magnetic fields may amplify iron's harmful effects.

Why This Matters

This research reveals an important mechanism by which magnetic fields may cause biological harm: they appear to amplify oxidative stress when combined with iron, which is naturally present in our blood. The 7 milliTesla exposure used here is relatively strong compared to typical household appliances (which generate fields of 0.1-1 milliTesla), but it's within the range of some industrial equipment and MRI machines. What makes this study particularly significant is that it demonstrates how magnetic fields don't operate in isolation - they interact with other factors in our bodies, potentially making normal biological processes more harmful. The protective effect of antioxidants like vitamin E suggests that the damage occurs through oxidative stress pathways, the same mechanisms implicated in aging and many diseases. This adds to the growing body of evidence that EMF exposure creates biological effects at the cellular level, even when those effects might not immediately translate to obvious health symptoms.

Exposure Details

Magnetic Field
7 mG
Exposure Duration
3 h

Exposure Context

This study used 7 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 ContextA logarithmic scale showing exposure levels relative to Building Biology concern thresholds and regulatory limits.Study Exposure Level in ContextThis study: 7 mGExtreme Concern5 mGFCC Limit2,000 mGEffects observed in the Extreme Concern range (Building Biology)FCC limit is 286x higher than this exposure level

Study Details

The purpose of this study was to examine the effect of melatonin and vitamin E (trolox) on the level of lipid peroxidation in rat blood lymphocytes after in vitro (3 h) exposure to iron ions and/or 7mT static magnetic field (SMF).

The lipid peroxidation process was chosen as a marker of free radical mechanism of SMF in cells. The...

There is a significant increase in the amount of lipid peroxidation end-products (4-HNE + MDA) in ra...

Cite This Study
Jajte J, Zmyślony M, Rajkowska E. (2003). Protective effect of melatonin and vitamin E against prooxidative action of iron ions and static magnetic field Med Pr. 54(1):23-28, 2003.
Show BibTeX
@article{j_2003_protective_effect_of_melatonin_390,
  author = {Jajte J and Zmyślony M and Rajkowska E.},
  title = {Protective effect of melatonin and vitamin E against prooxidative action of iron ions and static magnetic field},
  year = {2003},
  
  url = {https://europepmc.org/article/med/12731401},
}
PubMed: 12731401

Quick Questions About This Study

Researchers exposed rat blood cells to magnetic fields and iron ions to test for cellular damage. The combination significantly increased harmful oxidation in cells, but pre-treating cells with antioxidants like melatonin or vitamin E prevented most damage, suggesting magnetic fields may amplify iron's harmful effects.