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Brain & Nervous System

Effects of 50 Hz electromagnetic fields on rat cortical synaptosomes.

No Effects Found

Aldinucci C, Carretta A, Maiorca SM, Leoncini S, Signorini C, Ciccoli L, Pessina GP. · 2009

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Rat brain cells showed no functional changes after 2-hour exposure to 2 milliTesla magnetic fields, roughly 10-200 times stronger than typical home exposures.

Plain English Summary

Summary written for general audiences

Italian researchers exposed rat brain nerve terminals (synaptosomes) to 50 Hz magnetic fields at 2 milliTesla for 2 hours and measured multiple indicators of cellular function including energy production, calcium levels, and oxidative stress markers. They found no changes in any of the measured parameters, indicating that this level of extremely low frequency magnetic field exposure did not affect normal nerve terminal function. This suggests that moderate-strength power frequency magnetic fields may not directly disrupt basic brain cell operations at the cellular level.

Study Details

The present study examined the effect of a 2-h exposure of synaptosomes on a system generating a peak magnetic field of 2 mT.

We evaluated the changes of the synaptosomal mitochondrial respiration rate and ATP production, memb...

The intrasynaptosomal Ca2+ concentration decreased slowly and no depolarization of the synaptosomal ...

These results indicate that the physiological behavior of cortical synaptosomes was unaffected by weak pulsed EMFs

Cite This Study
Aldinucci C, Carretta A, Maiorca SM, Leoncini S, Signorini C, Ciccoli L, Pessina GP. (2009). Effects of 50 Hz electromagnetic fields on rat cortical synaptosomes. Toxicol Ind Health. 25(4-5):249-252, 2009.
Show BibTeX
@article{c_2009_effects_of_50_hz_2890,
  author = {Aldinucci C and Carretta A and Maiorca SM and Leoncini S and Signorini C and Ciccoli L and Pessina GP.},
  title = {Effects of 50 Hz electromagnetic fields on rat cortical synaptosomes.},
  year = {2009},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/19651794/},
}
PubMed: 19651794

Cited By (17 papers)

Quick Questions About This Study

Italian researchers found that 50 Hz magnetic fields at 2 milliTesla did not affect rat brain nerve terminals (synaptosomes) after 2 hours of exposure. The study measured calcium levels, energy production, and oxidative stress markers, finding no changes in any cellular function parameters.
A 2009 study exposed rat cortical synaptosomes to 2 milliTesla 50 Hz magnetic fields for 2 hours and found no damage to brain synapses. Calcium concentrations, membrane function, and cellular stress markers remained unchanged, indicating no disruption to normal synaptic operations.
Research on rat brain nerve terminals showed that 2-hour exposure to 50 Hz electromagnetic fields at 2 milliTesla caused no harm to brain cells. The study found no changes in cellular energy production, calcium handling, or oxidative stress indicators.
A controlled laboratory study found that 50 Hz electromagnetic fields at 2 milliTesla did not cause oxidative stress in rat brain tissue. Researchers measured F2-isoprostanes and free iron release from nerve terminals and detected no increases after 2 hours of exposure.
Research indicates that moderate-strength power line magnetic fields (2 milliTesla at 50 Hz) do not disrupt basic nerve function. Italian scientists found no changes in synaptosomal membrane depolarization, calcium levels, or cellular metabolism in exposed rat brain nerve terminals.