[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 at everyday exposure levels impaired learning and memory in mice, but antioxidant supplements prevented the damage.
Plain English Summary
Researchers exposed mice to cell phone radiation at 1800 MHz (the frequency used by GSM networks) for either 30 or 120 minutes daily over 30 days. Mice exposed for 120 minutes showed significant learning and memory problems, along with brain chemistry changes indicating oxidative stress. When researchers gave the mice nano-selenium supplements, the cognitive damage was largely prevented.
Why This Matters
This study adds to mounting evidence that radiofrequency radiation can impair brain function through oxidative stress mechanisms. The exposure level of 208 microW/cm² is well within the range of everyday cell phone use, making these cognitive effects particularly relevant for heavy phone users. What makes this research especially significant is the demonstration that the brain damage appears preventable through antioxidant intervention. The fact that nano-selenium protected against RF-induced memory problems suggests the underlying mechanism involves free radical damage to brain cells. This aligns with dozens of other studies showing similar cognitive effects from RF exposure, despite industry claims that such low-level radiation is harmless.
Exposure Details
- Power Density
- 0.208 µW/m²
- Source/Device
- 1800 MHz
- Exposure Duration
- (0, 30 and 120 min/d respectively) 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_565,
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},
}