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Effects of sinusoidal electromagnetic fields on histopathology and structures of brains of preincubated white leghorn chicken embryos

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Lahijani MS, Bigdeli MR, Kalantary S. · 2011

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Brief electromagnetic field exposure before development caused lasting brain damage in chicken embryos, suggesting developing nervous systems are especially vulnerable.

Plain English Summary

Summary written for general audiences

Researchers exposed chicken eggs to 50 Hz electromagnetic fields (like those from power lines) for 24 hours before incubation, then examined the developing embryos' brains after 14 days. The exposed embryos showed significant brain damage, including increased cell death (apoptosis) and tissue degeneration. This study demonstrates that even brief pre-development exposure to common electromagnetic frequencies can cause measurable harm to the developing nervous system.

Why This Matters

This research adds important evidence to our understanding of EMF effects on developing brains. The 50 Hz frequency used matches exactly what comes from power lines and household electrical systems, making these findings directly relevant to human exposure concerns. What makes this study particularly significant is the timing - the eggs were exposed for just 24 hours before incubation began, yet the brain damage was still evident two weeks later. This suggests that electromagnetic fields may be most harmful during critical developmental windows. The magnetic field strengths used (1.33 to 7.32 mT) are higher than typical household exposures but within ranges that can occur near power lines or electrical equipment. The reality is that developing nervous systems appear especially vulnerable to EMF exposure, which raises important questions about protecting pregnant women and children from these ubiquitous fields.

Exposure Details

Magnetic Field
1.33 , 2.66, 7.32 mG
Source/Device
50 Hz
Exposure Duration
continuous for 24 h before incubation

Exposure Context

This study used 1.33 , 2.66, 7.32 mG for magnetic fields:

Building Biology guidelines are practitioner-based limits from real-world assessments. BioInitiative Report recommendations are based on peer-reviewed science. Check Your Exposure to compare your own measurements.

Where This Falls on the Concern Scale

Study Exposure Level in ContextStudy Exposure Level in ContextThis study: 1.33 , 2.66, 7.32 mGExtreme Concern - 5 mGFCC Limit - 2,000 mGEffects observed in the Severe Concern rangeFCC limit is 1,504x higher than this level
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

Study Details

Effects of sinusoidal electromagnetic fields on histopathology and structures of brains of preincubated white leghorn hen eggs were investigated.

Three hundred healthy fresh fertilized eggs (55–65 gr) were divided into three groups of experimenta...

Results showed electromagnetic fields have toxic effects on brain cells by increasing the number of ...

These findings suggest that the electromagnetic fields induce brain damages at different levels.

Cite This Study
Lahijani MS, Bigdeli MR, Kalantary S. (2011). Effects of sinusoidal electromagnetic fields on histopathology and structures of brains of preincubated white leghorn chicken embryos Electromagn Biol Med. 30(3):146-157, 2011.
Show BibTeX
@article{ms_2011_effects_of_sinusoidal_electromagnetic_271,
  author = {Lahijani MS and Bigdeli MR and Kalantary S.},
  title = {Effects of sinusoidal electromagnetic fields on histopathology and structures of brains of preincubated white leghorn chicken embryos},
  year = {2011},
  doi = {10.3109/15368378.2011.596250},
  url = {https://www.tandfonline.com/doi/abs/10.3109/15368378.2011.596250},
}
DOI: 10.3109/15368378.2011.596250

Cited By (13 papers)

Quick Questions About This Study

Research suggests electromagnetic fields from power lines may harm developing brains. A 2011 study found that chicken embryos exposed to 50 Hz fields (the same frequency as power lines) showed significant brain cell death and tissue damage after just 24 hours of exposure.
Studies indicate 50 Hz electromagnetic fields can damage developing brain tissue. Research on chicken embryos exposed to these frequencies showed increased cell death and brain degeneration, suggesting potential risks during critical developmental periods when the nervous system is forming.
Yes, household electrical frequency (50 Hz) appears to affect brain cells negatively. Laboratory research demonstrated that exposure to this common frequency increased brain cell death and caused tissue degeneration in developing embryos, indicating potential cellular toxicity from everyday electrical sources.
Power line EMF may increase brain damage risks during development. Scientific studies show that 50 Hz electromagnetic fields can cause brain cell death and tissue degeneration. The research suggests even brief exposure periods can produce measurable harmful effects on developing nervous systems.
Electromagnetic field exposure impacts brain tissue by increasing cell death and causing degeneration. Research shows that 50 Hz fields trigger apoptosis (programmed cell death) in brain cells and damage neural tissue, particularly during vulnerable developmental stages when the brain is forming.