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Note: This study found no significant biological effects under its experimental conditions. We include all studies for scientific completeness.

DNA & Genetic Damage

Gene expression profiles in white blood cells of volunteers exposed to a 50 Hz electromagnetic field

No Effects Found

Authors not listed · 2012

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No gene expression changes found in human blood cells exposed to power line frequency EMF 600 times stronger than typical household levels.

Plain English Summary

Summary written for general audiences

Researchers exposed 17 male volunteers to 50 Hz electromagnetic fields (similar to power lines) for 2 hours and analyzed their white blood cell gene expression using advanced microarray technology. Despite examining 16 genes previously reported to respond to EMF exposure, no consistent changes were found. The only stress response detected was from the experimental procedure itself, not the EMF exposure.

Exposure Information

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
Cite This Study
Unknown (2012). Gene expression profiles in white blood cells of volunteers exposed to a 50 Hz electromagnetic field.
Show BibTeX
@article{gene_expression_profiles_in_white_blood_cells_of_volunteers_exposed_to_a_50_hz_electromagnetic_field_ce4082,
  author = {Unknown},
  title = {Gene expression profiles in white blood cells of volunteers exposed to a 50 Hz electromagnetic field},
  year = {2012},
  doi = {10.1667/RR2859.1},
  
}
DOI: 10.1667/RR2859.1PubMed: 22856684

Quick Questions About This Study

No. Despite exposing 17 volunteers to 62 μT magnetic fields for 2 hours and analyzing 16 genes previously reported to respond to EMF, researchers found no consistent gene expression changes in white blood cells.
The 62 μT exposure was approximately 600 times stronger than typical household magnetic field levels near appliances. Most home environments measure around 0.1 μT, making this a very high experimental exposure.
The temporary cortisol increase was caused by mild stress from the experimental procedure itself, not EMF exposure. The stress response occurred during both real and sham exposures and diminished on subsequent days.
Researchers examined 16 mammalian genes previously reported as EMF-responsive, including immediate early genes, stress response genes, cell proliferation genes, and apoptotic (cell death) genes. None showed consistent response patterns.
Each volunteer received 2-hour exposures to either 50 Hz EMF or sham conditions. Blood samples were collected at 2-hour intervals from 9 AM to 5 PM on multiple study days.