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Magnetic field-induced changes in specific gene transcription

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Authors not listed · 1992

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Power line frequency magnetic fields altered critical gene activity in human immune cells within 15 minutes.

Plain English Summary

Summary written for general audiences

Scientists exposed human immune cells to weak 60 Hz magnetic fields (similar to power lines) for up to 2 hours and found significant changes in how important genes were turned on and off. The study showed that magnetic fields altered the activity of genes that control cell growth and immune responses, with effects varying by exposure time and cell density.

Why This Matters

This study provides direct evidence that power line frequency magnetic fields can alter fundamental cellular processes at the genetic level. What makes this research particularly significant is that it demonstrates biological effects at just 1 gauss - a field strength you might encounter near household appliances or power lines. The researchers found changes in critical genes like c-fos and c-myc that regulate cell growth and division, suggesting that even brief exposures to common EMF sources may influence how our cells function. The time-dependent effects observed here indicate that duration of exposure matters, which has important implications for people living near power lines or working in EMF-rich environments. While this study used immune cells in laboratory conditions, the genetic pathways affected are fundamental to human biology, raising questions about potential long-term health consequences of chronic low-level EMF exposure.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 60 Hz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 60 HzCell phones~1 GHzWiFi2.4 GHz5G mm28 GHzLogarithmic scale

Specific exposure levels were not quantified in this study.

Cite This Study
Unknown (1992). Magnetic field-induced changes in specific gene transcription.
Show BibTeX
@article{magnetic_field_induced_changes_in_specific_gene_transcription_ce1618,
  author = {Unknown},
  title = {Magnetic field-induced changes in specific gene transcription},
  year = {1992},
  doi = {10.1016/0167-4781(92)90004-J},
  
}
DOI: 10.1016/0167-4781(92)90004-JPubMed: 1390886

Quick Questions About This Study

Yes, this study found that 60 Hz magnetic fields at 1 gauss strength altered the transcription of important genes including c-fos, c-jun, and c-myc in human T-lymphoblastoid cells within 15-120 minutes of exposure.
The study identified changes in c-fos, c-jun, c-myc, and protein kinase C genes. These genes control cell growth, division, and immune responses - fundamental processes that affect how cells function and survive.
Gene transcription changes were observed within 15 minutes of magnetic field exposure and continued through 120 minutes, showing that genetic effects can occur rapidly and persist during continued EMF exposure.
Yes, the researchers found that cellular responses to magnetic fields varied depending on cell density, suggesting that the biological context and cell environment influence how EMF affects genetic activity.
The study used a 1 gauss sinusoidal magnetic field at 60 Hz. This field strength is comparable to what you might encounter near household appliances or electrical equipment in daily life.