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Effects of ELF-EMF on brain proteins in mice.

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Strasák L, Bártová E, Krejci J, Fojt L, Vetterl V. · 2009

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In mice exposed to a 50 Hz magnetic field for 4 days, c-Jun protein in the brain decreased while c-Fos was unaffected.

Plain English Summary

Summary written for general audiences

Researchers exposed female and male laboratory mice for 4 days to a 50 Hz magnetic field at 2 mT inside a cylindrical coil. After exposure, levels of the proteins c-Jun and c-Fos in different parts of the brain were measured using Western-blot techniques. The expression of c-Jun decreased after magnetic field exposure, while c-Fos expression was not affected, and neither result depended on the sex of the mice.

Why This Matters

The study measured two proteins, c-Jun and c-Fos, in the brains of mice after four days of magnetic field exposure at 50 Hz and 2 mT. Only c-Jun showed a change, with its expression decreasing following exposure, while c-Fos levels remained unaffected. The pattern of results was the same for both female and male mice.

Exposure Details

Magnetic Field
2 mT
Source/Device
50 Hz
Exposure Duration
4 days

Exposure Context

This study used 2 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 mTExtreme Concern - 5 mGFCC Limit - 2,000 mGEffects observed in the Extreme Concern range (Building Biology)This level is 10 times the FCC limit
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

Effect of electromagnetic low frequency fields was studied on mice.

We analyzed level of protein in brain of mouse. The levels of c-Jun and c-Fos in brains were measure...

The expression of c-Fos was not affected by magnetic field on the other hand the expression of c-Jun...

Cite This Study
Strasák L, Bártová E, Krejci J, Fojt L, Vetterl V. (2009). Effects of ELF-EMF on brain proteins in mice. Electromagn Biol Med. 28(1):96-104, 2009.
Show BibTeX
@article{l_2009_effects_of_elfemf_on_303,
  author = {Strasák L and Bártová E and Krejci J and Fojt L and Vetterl V. },
  title = {Effects of ELF-EMF on brain proteins in mice.},
  year = {2009},
  doi = {10.1080/15368370802711870},
  url = {https://www.tandfonline.com/doi/abs/10.1080/15368370802711870},
}
DOI: 10.1080/15368370802711870

Cited By (11 papers)

Quick Questions About This Study

Mice were exposed to a low frequency magnetic field at 50 Hz and 2 mT for 4 days inside a cylindrical coil.
The expression of c-Jun decreased after magnetic field exposure, while c-Fos was not affected.
The results did not depend on the sex of the mice.
Protein levels in different parts of the brain were measured using Western-blot techniques.