8,700 Studies Reviewed. 87.0% Found Biological Effects. The Evidence is Clear.
Shield Your Body
Cellular Effects

Effect of exposure to an extremely low frequency-electromagnetic field on the cellular collagen with respect to signaling pathways in osteoblast-like cells

Bioeffects Seen

Authors not listed · 2008

Share:

60 Hz magnetic fields activate distinct cellular pathways in bone cells, increasing collagen through mechanisms different from natural growth factors.

Plain English Summary

Summary written for general audiences

Japanese researchers exposed mouse bone-building cells to 60 Hz magnetic fields at 3 mT (3,000 times stronger than typical household levels) and found the fields significantly increased collagen production. The study identified specific cellular pathways involved in this response, showing EMF exposure triggers different biological mechanisms than natural growth factors.

Why This Matters

This study reveals that extremely low frequency magnetic fields can directly alter fundamental cellular processes in bone-forming cells. While the 3 mT field strength used is much higher than typical home exposures (which range from 0.01 to 4 mT near major appliances), the finding that 60 Hz fields trigger specific cellular signaling pathways raises important questions about biological effects at power line frequencies. The research demonstrates that EMF exposure doesn't simply mimic natural biological signals but activates distinct cellular mechanisms, particularly the p38 MAPK pathway while potentially suppressing protective PI3K signaling. What makes this particularly relevant is that 60 Hz is the exact frequency of electrical power systems throughout North America, meaning millions of people experience daily exposure to these same frequencies, albeit typically at much lower intensities.

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 (2008). Effect of exposure to an extremely low frequency-electromagnetic field on the cellular collagen with respect to signaling pathways in osteoblast-like cells.
Show BibTeX
@article{effect_of_exposure_to_an_extremely_low_frequency_electromagnetic_field_on_the_cellular_collagen_with_respect_to_signaling_pathways_in_osteoblast_like_cells_ce2191,
  author = {Unknown},
  title = {Effect of exposure to an extremely low frequency-electromagnetic field on the cellular collagen with respect to signaling pathways in osteoblast-like cells},
  year = {2008},
  doi = {10.2152/JMI.55.267},
  
}
DOI: 10.2152/JMI.55.267PubMed: 18797142

Quick Questions About This Study

Yes, this study found that 60 Hz magnetic fields at 3 mT significantly increased collagen production in mouse bone-building cells. The effect was measurable and occurred through specific cellular signaling pathways distinct from natural growth factor responses.
The researchers used 3 mT (3 millitesla) magnetic fields, which is approximately 3,000 times stronger than typical household background levels but similar to what you might experience very close to high-powered electrical equipment or MRI machines.
The study found that 60 Hz electromagnetic fields primarily activate the p38 MAPK cellular pathway to increase collagen synthesis. This is different from the pathways used by natural bone growth factors like IGF-I.
Yes, exposure to 60 Hz fields (the same frequency as power lines) significantly affected bone cell differentiation by increasing collagen content. However, this study used field strengths much higher than typical power line exposures.
The research suggests that EMF exposure may allow suppression of the PI3K pathway, which normally helps regulate collagen synthesis. When this protective pathway was blocked, EMF-induced collagen production actually accelerated further.