Effect of 835 MHz radiofrequency radiation exposure on calcium binding proteins in the hippocampus of the mouse brain
Maskey D, Kim M, Aryal B, Pradhan J, Choi IY, Park KS, Son T, Hong SY, Kim SB, Kim HG, Kim MJ. · 2010
View Original AbstractOne month of cell phone frequency exposure caused nearly complete loss of memory-critical brain cells in mice at radiation levels near current safety limits.
Plain English Summary
Researchers exposed mice to cell phone radiation (835 MHz) for one month and found almost complete loss of brain cells in the hippocampus, the region responsible for memory and learning. This suggests cell phone radiation may disrupt brain function and potentially affect memory formation.
Why This Matters
This study reveals concerning evidence that cell phone radiation can cause structural damage to critical brain regions involved in memory formation. The 835 MHz frequency used is very close to frequencies used by modern cellular networks, and the exposure levels (1.6-4.0 W/kg SAR) bracket the 2.0 W/kg safety limit set by the FCC. What makes this research particularly significant is the finding of actual cell loss in the hippocampus after one month of daily exposure. The hippocampus is essential for forming new memories and spatial navigation, and pyramidal cell loss in this region is associated with cognitive decline and memory disorders. While this was an animal study, the biological mechanisms involved - disruption of calcium homeostasis in neurons - are fundamental processes shared across mammalian species, making these findings relevant to human health concerns about long-term wireless device use.
Exposure Details
- SAR
- 4, 1.6 W/kg
- Source/Device
- 835 MHz
- Exposure Duration
- 1 month
Exposure Context
This study used 4, 1.6 W/kg for SAR (device absorption):
- 4x above the Building Biology guideline of 0.4 W/kg
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 effect of 835 MHz radiofrequency radiation exposure on calcium binding proteins in the hippocampus of the mouse brain.
Worldwide expansion of mobile phones and electromagnetic field (EMF) exposure has raised question of...
Body weights did not change significantly. CB immunoreactivity (IR) displayed moderate staining of c...
Show BibTeX
@article{d_2010_effect_of_835_mhz_1187,
author = {Maskey D and Kim M and Aryal B and Pradhan J and Choi IY and Park KS and Son T and Hong SY and Kim SB and Kim HG and Kim MJ. },
title = {Effect of 835 MHz radiofrequency radiation exposure on calcium binding proteins in the hippocampus of the mouse brain},
year = {2010},
url = {https://www.sciencedirect.com/science/article/abs/pii/S0006899309025980},
}