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Brain & Nervous System

Extremely low-frequency magnetic exposure appears to have no effect on pathogenesis of Alzheimer's disease in aluminum-overloaded rat.

No Effects Found

Zhang C, Li Y, Wang C, Lv R, Song T. · 2013

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Power-frequency magnetic fields at 100 microtesla showed no effect on Alzheimer's markers in rats, even at levels 100 times higher than typical home exposure.

Plain English Summary

Summary written for general audiences

Researchers exposed rats to 50 Hz magnetic fields (the type from power lines) for 12 weeks to see if this exposure would worsen Alzheimer's-like symptoms caused by aluminum poisoning. They found that magnetic field exposure alone had no effect on brain function or Alzheimer's markers, and it didn't make aluminum-induced brain damage any worse. This suggests that power-frequency magnetic fields may not contribute to Alzheimer's disease development.

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

The study examined exposure from: 50 Hz Duration: 12 weeks

Study Details

This study aims to examine whether or not ELF-MF and Al have synergistic effects toward AD pathogenesis by investigating the effects of ELF-MF with or without chronic Al treatment on SD rats.

Sprague-Dawley (SD) rats were subjected one of the following treatments: sham (control group), oral ...

After 12 wk of treatment, oral Al treatment groups (Al and MF+Al groups) showed learning and memory ...

Our results showed no evidence of any association between ELF-MF exposure (100 µT at 50 Hz) and AD, and ELF-MF exposure does not influence the pathogenesis of AD induced by Al overload.

Cite This Study
Zhang C, Li Y, Wang C, Lv R, Song T. (2013). Extremely low-frequency magnetic exposure appears to have no effect on pathogenesis of Alzheimer's disease in aluminum-overloaded rat. PLoS One. 2013 Aug 12;8(8):e71087. doi: 10.1371/journal.pone.0071087. eCollection 2013.
Show BibTeX
@article{c_2013_extremely_lowfrequency_magnetic_exposure_2906,
  author = {Zhang C and Li Y and Wang C and Lv R and Song T.},
  title = {Extremely low-frequency magnetic exposure appears to have no effect on pathogenesis of Alzheimer's disease in aluminum-overloaded rat.},
  year = {2013},
  
  url = {https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0071087},
}

Quick Questions About This Study

A 2013 study found that 50 Hz magnetic fields at 100 µT had no effect on Alzheimer's disease development in rats. Twelve weeks of power-frequency magnetic field exposure showed no impact on brain function, memory, or Alzheimer's markers like amyloid-β plaques.
Research shows that 50 Hz magnetic field exposure does not worsen aluminum-induced brain damage. Rats exposed to both aluminum and power-frequency EMF showed no additional neuronal loss or memory impairment compared to aluminum exposure alone.
A 12-week study found that 100 µT magnetic field exposure at 50 Hz had no significant effect on learning and memory in rats. Only aluminum treatment caused memory impairment, while magnetic field exposure alone showed no cognitive effects.
Power frequency magnetic fields at 50 Hz do not damage hippocampus neurons according to 2013 research. The study found no neuronal cell loss or amyloid-β accumulation in brain regions after 12 weeks of 100 µT magnetic field exposure.
Current research suggests no link between extremely low frequency magnetic fields and dementia risk. A controlled study using 50 Hz EMF at 100 µT found no evidence of association with Alzheimer's disease pathogenesis in laboratory models.