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

Effect of puerarin on matrix metalloproteinase-2 in human fetal scleral fibroblasts treated with low frequency electromagnetic fields

Bioeffects Seen

Authors not listed · 2013

Share:

ELF electromagnetic fields increased tissue-degrading enzyme production in human eye cells by over 100%.

Plain English Summary

Summary written for general audiences

Scientists exposed human eye tissue cells to extremely low frequency electromagnetic fields (ELF-EMF) at 0.2 millitesla for 24 hours and found it increased production of MMP-2, an enzyme that breaks down connective tissue. A natural compound called puerarin partially reversed this effect, suggesting it might protect eye tissue from EMF damage.

Why This Matters

This study reveals a concerning mechanism by which ELF-EMF exposure affects human eye tissue at the cellular level. The 0.2 millitesla field strength used here is roughly 4,000 times stronger than typical household magnetic field exposure (around 0.05 microtesla), but it's within the range of occupational exposures near power lines or industrial equipment. The finding that EMF increased MMP-2 expression is significant because this enzyme breaks down the structural matrix of eye tissue, potentially contributing to vision problems. What makes this research particularly valuable is that it used human fetal cells rather than animal models, providing more direct relevance to human health. The fact that a natural compound could partially counteract these effects suggests the cellular damage isn't inevitable, but the underlying mechanism of EMF-induced tissue degradation remains a serious concern that deserves further investigation.

Exposure Information

Specific exposure levels were not quantified in this study.

Cite This Study
Unknown (2013). Effect of puerarin on matrix metalloproteinase-2 in human fetal scleral fibroblasts treated with low frequency electromagnetic fields.
Show BibTeX
@article{effect_of_puerarin_on_matrix_metalloproteinase_2_in_human_fetal_scleral_fibroblasts_treated_with_low_frequency_electromagnetic_fields_ce2078,
  author = {Unknown},
  title = {Effect of puerarin on matrix metalloproteinase-2 in human fetal scleral fibroblasts treated with low frequency electromagnetic fields},
  year = {2013},
  doi = {10.1016/S0254-6272(14)60039-X},
  
}
DOI: 10.1016/S0254-6272(14)60039-XPubMed: 24660593

Quick Questions About This Study

Yes, this study found that 24-hour exposure to 0.2 mT ELF-EMF increased MMP-2 enzyme production in human eye tissue cells by 79% at the gene level and 113% at the protein level, potentially degrading structural eye tissue.
MMP-2 is an enzyme that breaks down collagen and other proteins in connective tissue. When overproduced in eye tissue, it can degrade the structural matrix that maintains eye shape and function, potentially contributing to vision problems.
Puerarin showed protective effects, reducing EMF-induced MMP-2 increases by 8.5% to 18% depending on concentration. Higher concentrations (1-10 microM) provided more significant protection than lower doses, suggesting dose-dependent benefits.
The 0.2 mT field used in this study is about 4,000 times stronger than typical home magnetic field levels (0.05 microtesla), but similar to occupational exposures near power lines or industrial electromagnetic equipment.
Yes, these cells form the white outer layer of the eye and maintain its structural integrity throughout life. Using human fetal cells provides more direct relevance to human biology than animal studies for understanding EMF effects.