Effects of short term and long term extremely low frequency magnetic field on depressive disorder in mice: Involvement of nitric oxide pathway.
Ansari AM, Farzampour S, Sadr A, Shekarchi B, Majidzadeh-A K. · 2016
View Original AbstractTwo weeks of power-line frequency magnetic field exposure altered depression-related brain chemistry in mice and interfered with antidepressant medication effectiveness.
Plain English Summary
Researchers exposed mice to extremely low frequency magnetic fields (the type emitted by power lines and electrical devices) for either 2 hours once or 2 hours daily for 2 weeks. They found that long-term exposure reduced depression-like behavior in the mice, while short-term exposure interfered with antidepressant medications. This suggests that chronic EMF exposure may alter brain chemistry and affect how psychiatric medications work.
Why This Matters
This study reveals something crucial that most EMF research overlooks: the difference between short-term and long-term exposure effects. While a single 2-hour exposure to 0.5 mT magnetic fields showed no behavioral changes, two weeks of the same exposure significantly altered depression-related behavior in mice. What makes this particularly concerning is that 0.5 mT is well within the range you might encounter from household appliances, electrical panels, or living near power lines. The researchers also discovered that short-term EMF exposure blocked the effectiveness of an antidepressant medication, suggesting these fields can interfere with brain chemistry pathways. This adds to growing evidence that EMF exposure may not just cause direct health effects, but could also alter how our bodies respond to medications and treatments.
Exposure Details
- Magnetic Field
- 0.5 mG
- Source/Device
- 50 Hz
- Exposure Duration
- single 2 h and 2 weeks 2 h a day
Exposure Context
This study used 0.5 mG for magnetic fields:
- 25Kx above the Building Biology guideline of 0.2 mG
- 5Kx 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
We aimed to assess the possible effect(s) of ELF MF exposure on mice Forced Swimming Test (FST) and evaluate the probable role of the increased level of nitric oxide in the observed behavior.
Male adult mice NMRI were recruited to investigate the short term and long term ELF MF exposure (0.5...
According to the results, short term exposure did not alter the immobility time, whereas long term e...
It has been concluded that long term exposure could alter the depressive disorder in mice, whereas short term exposure has no significant effect. Also, reversing the anti-depressant activity of L-NAME indicates a probable increase in the brain nitric oxide.
Show BibTeX
@article{am_2016_effects_of_short_term_598,
author = {Ansari AM and Farzampour S and Sadr A and Shekarchi B and Majidzadeh-A K.},
title = {Effects of short term and long term extremely low frequency magnetic field on depressive disorder in mice: Involvement of nitric oxide pathway.},
year = {2016},
url = {https://www.sciencedirect.com/science/article/abs/pii/S002432051530148X},
}