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Effect of weak combined static and extremely low-frequency alternating magnetic fields on spatial memory and brain amyloid-β in two animal models of Alzheimer's disease.

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Bobkova NV, Novikov VV, Medvinskaya NI, Aleksandrova IY, Nesterova IV, Fesenko EE. · 2018

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Extremely weak magnetic fields reduced Alzheimer's-associated brain proteins in mice, showing biological systems respond to EMF at levels far below everyday exposures.

Plain English Summary

Summary written for general audiences

Russian researchers exposed Alzheimer's mice to extremely weak magnetic fields for 4 hours daily over 10 days. The treatment reduced toxic brain plaques and improved memory in some mice, suggesting specific magnetic frequencies might help clear harmful proteins in early neurodegenerative diseases.

Why This Matters

This study adds to a growing body of research suggesting that extremely low frequency magnetic fields can influence brain biology in ways that might benefit neurological health. What's particularly striking is that the magnetic field strength used was extraordinarily weak - about 42 microtesla for the static component and just 0.08 microtesla for the alternating field. For context, these levels are roughly 1,000 times weaker than Earth's natural magnetic field and far below typical household EMF exposures from power lines or appliances. The research demonstrates that biological effects from magnetic fields aren't simply about intensity - frequency and timing matter enormously. While this work focused on potential therapeutic applications, it underscores how sensitive our biological systems are to even minimal electromagnetic influences, reinforcing the importance of understanding EMF interactions with human health across all exposure levels.

Exposure Details

Magnetic Field
0.00008 - 0.042 mG
Source/Device
4.38 and 4.88 Hz
Exposure Duration
4 h/day for 10 days

Exposure Context

This study used 0.00008 - 0.042 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: 0.00008 - 0.042 mGExtreme Concern - 5 mGFCC Limit - 2,000 mGEffects observed in the No Concern rangeFCC limit is 25,000,000x higher than this level
A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 5 Hz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 5 HzPower lines50/60 HzCell phones~1 GHzWiFi2.4 GHz5G mm28 GHzLogarithmic scale

Study Details

The aim of this study was to evaluate Effect of weak combined static and extremely low-frequency alternating magnetic fields on spatial memory and brain amyloid-β in two animal models of Alzheimer's disease

Subchronic effect of a weak combined magnetic field (MF), produced by superimposing a constant compo...

Exposure to the MFs (4 h/day for 10 days) induced the decrease of Aβ level in brain of OBE mice and ...

we suggest that in order to prevent the Aβ accumulation, MFs could be used at early stage of neuronal degeneration in case of AD and other diseases with amyloid protein deposition in other tissues.

Cite This Study
Bobkova NV, Novikov VV, Medvinskaya NI, Aleksandrova IY, Nesterova IV, Fesenko EE. (2018). Effect of weak combined static and extremely low-frequency alternating magnetic fields on spatial memory and brain amyloid-β in two animal models of Alzheimer's disease. Electromagn Biol Med. 37(3):127-137, 2018.
Show BibTeX
@article{nv_2018_effect_of_weak_combined_606,
  author = {Bobkova NV and Novikov VV and Medvinskaya NI and Aleksandrova IY and Nesterova IV and Fesenko EE.},
  title = {Effect of weak combined static and extremely low-frequency alternating magnetic fields on spatial memory and brain amyloid-β in two animal models of Alzheimer's disease.},
  year = {2018},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/29771571/},
}
PubMed: 29771571

Cited By (16 papers)

Quick Questions About This Study

Russian research suggests extremely weak magnetic fields at specific frequencies (4.38-4.88 Hz) may help reduce toxic brain plaques associated with Alzheimer's disease. The study found daily 4-hour exposures for 10 days decreased harmful amyloid-beta proteins in mouse brains and improved memory in some cases.
Yes, extremely low frequency magnetic fields can affect brain plaques. A 2018 study found that 4.38 and 4.88 Hz magnetic fields reduced amyloid-beta plaques in the cortex and hippocampus of Alzheimer's mice after 10 days of treatment, suggesting potential therapeutic applications.
Research indicates weak magnetic field therapy may actually improve memory in certain conditions. The study showed that extremely weak magnetic fields improved memory performance in transgenic Alzheimer's mice, though effects varied between different mouse models tested.
Magnetic fields at specific frequencies can reduce amyloid protein levels in the brain. Russian researchers found that 4.38-4.88 Hz magnetic fields decreased amyloid-beta accumulation in Alzheimer's mouse models, potentially helping clear these harmful proteins associated with neurodegeneration.
Specific magnetic field frequencies may help with Alzheimer's symptoms. A 2018 study found that extremely weak magnetic fields reduced toxic brain plaques and improved memory in some Alzheimer's mice, suggesting potential benefits when applied during early disease stages.