Effects of nano-selenium on cognition performance of mice exposed in 1800 MHz radiofrequency fields
Qin F, Yuan H, Nie J, Cao Y, Tong J · 2014
View Original AbstractCell phone radiation impaired learning and memory in mice after just 30 days of exposure at levels comparable to phone calls.
Plain English Summary
Researchers exposed mice to cell phone radiation (1800 MHz) for 30 days and found that 2-hour daily exposures significantly impaired learning and memory performance. The study also tested whether nano-selenium supplements could protect against these cognitive effects, finding that the supplement did help preserve brain function in radiation-exposed mice.
Why This Matters
This study adds to the growing body of evidence linking radiofrequency radiation to cognitive impairment. The 1800 MHz frequency used here is identical to what GSM cell phones emit, and the power density of 0.208 mW/cm² falls within ranges you might encounter from a cell phone held close to your head during a call. What makes this research particularly significant is that it demonstrates measurable cognitive decline after just 30 days of exposure, along with biochemical changes in the brain including increased oxidative stress and altered neurotransmitter levels. The protective effect of nano-selenium suggests that the damage occurs through oxidative pathways, which aligns with other research showing that RF radiation generates harmful free radicals in brain tissue. While this was an animal study, the biological mechanisms involved are fundamentally similar in humans, making these findings relevant to anyone concerned about long-term cell phone use.
Exposure Details
- Power Density
- 0.208 µW/m²
- Source/Device
- 1800 MHz
- Exposure Duration
- 0, 30 and 120 min/d for 30 days
Exposure Context
This study used 0.208 µW/m² for radio frequency:
- 20.8Mx above the Building Biology guideline of 0.1 μW/m²
- 346.7Kx above the BioInitiative Report recommendation of 0.0006 μW/cm²
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
To study the effects of nano-selenium (NSe) on cognition performance of mice exposed to 1800 MHz radiofrequency fields (RF).
Male mice were randomly divided into four groups, control and nano-Se low, middle and high dose grou...
Significant impairments in learning and memory (P < 0.05) were observed in the RF 120 min group, and...
NSe could improve cognitive impairments of mice exposed to RF, the mechanism of which might involve the increasing antioxidation, decreasing free radical content and the changes of cerebra neurotransmitters.
Show BibTeX
@article{f_2014_effects_of_nanoselenium_on_171,
author = {Qin F and Yuan H and Nie J and Cao Y and Tong J},
title = {Effects of nano-selenium on cognition performance of mice exposed in 1800 MHz radiofrequency fields},
year = {2014},
url = {https://europepmc.org/article/med/24564105},
}