Neuritin reverses deficits in murine novel object associative recognition memory caused by exposure to extremely low-frequency (50 Hz) electromagnetic fields.
Zhao QR, Lu JM, Yao JJ, Zhang ZY, Ling C, Mei YA. · 2015
View Original AbstractPower-frequency magnetic fields damaged memory and brain cells in mice at levels comparable to those near electrical equipment.
Plain English Summary
Researchers exposed mice to 50 Hz magnetic fields from power lines for 12 hours daily, finding it impaired memory recognition and damaged brain cells in the hippocampus. The damage was reversible with protective proteins, showing power-line frequencies can measurably affect brain function.
Why This Matters
This research provides compelling evidence that power-frequency magnetic fields can alter brain structure and function in ways that directly impact memory. The 1 mT exposure level used in this study is higher than typical household exposures (which range from 0.01 to 0.2 mT near appliances), but it's within the range you might encounter near power lines or electrical equipment. What makes this study particularly significant is that it demonstrates both the biological mechanism behind EMF-induced memory problems and shows the damage is potentially reversible. The fact that researchers could prevent the memory deficits by boosting a protective brain protein suggests our brains have natural defense mechanisms against EMF damage that may be overwhelmed by chronic exposure. This adds to the growing body of evidence showing that EMF exposure affects the nervous system in measurable ways, contradicting industry claims that these fields are biologically inert at non-thermal levels.
Exposure Details
- Magnetic Field
- 1 mG
- Source/Device
- 50 Hz
- Exposure Duration
- 12 h/day for 7-10 days
Exposure Context
This study used 1 mG for magnetic fields:
- 50Kx above the Building Biology guideline of 0.2 mG
- 10Kx above the BioInitiative Report recommendation of 1 mG
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 Details
The aim of this study is to observe Neuritin reverses deficits in murine novel object associative recognition memory caused by exposure to extremely low-frequency (50 Hz) electromagnetic fields.
In this study, we used a mouse model to examine the effects of exposure to extremely low-frequency (...
The data showed that ELF MFs exposure (1 mT, 12 h/day) induced a time-dependent deficit in novel obj...
Collectively, our study provides evidence for the association between ELF MFs exposure, impairment of recognition memory and resulting changes in hippocampal dendritic spine density. Neuritin prevented this ELF MFs-exposure-induced effect by increasing the hippocampal spine density.
Show BibTeX
@article{qr_2015_neuritin_reverses_deficits_in_737,
author = {Zhao QR and Lu JM and Yao JJ and Zhang ZY and Ling C and Mei YA.},
title = {Neuritin reverses deficits in murine novel object associative recognition memory caused by exposure to extremely low-frequency (50 Hz) electromagnetic fields.},
year = {2015},
url = {https://www.nature.com/articles/srep11768},
}