Note: This study found no significant biological effects under its experimental conditions. We include all studies for scientific completeness.
Local exposure of 849 MHz and 1763 MHz radiofrequency radiation to mouse heads does not induce cell death or cell proliferation in brain
Kim TH, Huang TQ, Jang JJ, Kim MH, Kim HJ, Lee JS, Pack JK, Seo JS, Park WY · 2008
View Original AbstractChronic exposure to 849 MHz and 1763 MHz RF radiation at 7.8 W/kg SAR did not induce cell death, proliferation, or reactive gliosis in mouse brains.
Plain English Summary
Researchers used a carousel-type chamber to expose the heads of C57BL mice to 849 MHz or 1763 MHz RF radiation. Mice were irradiated intermittently at 7.8 W/kg for up to 12 months. Brain tissues collected at 6 and 12 months showed no differences in histology, cell proliferation, NeuN and GFAP expression in hippocampus and cerebellum, or cell death between exposure and control groups. Body weights did not differ among sham, 849 MHz, and 1763 MHz groups during the study.
Why This Matters
The study aimed to assess the effect of local mobile phone frequency irradiation on the mouse brain over 12 months. The authors concluded that chronic exposure at 7.8 W/kg SAR could not induce cellular alterations such as proliferation, death, or reactive gliosis.
Exposure Details
- SAR
- 7.8 W/kg
- Source/Device
- 849 MHz and 1763 MHz
- Exposure Duration
- repeated daily exposure, 1 h/day, 5 days/week, for 6 or 12 months
Exposure Context
This study used 7.8 W/kg for SAR (device absorption):
- 19.5x 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 local exposure of mobile phone frequency irradiation to the mouse brain for 12 months
We established a carousel-type exposure chamber for 849 MHz or 1763 MHz of mobile phone RF radiation...
The brain tissues were obtained from 3 groups at 6 months and 12 months to examine the differences i...
From these data, we conclude that the chronic exposure to 849 MHz and 1763 MHz RF radiation at a 7.8 W/kg specific absorption rate (SAR) could not induce cellular alterations such as proliferation, death, and reactive gliosis.
Show BibTeX
@article{th_2008_local_exposure_of_849_2770,
author = {Kim TH and Huang TQ and Jang JJ and Kim MH and Kim HJ and Lee JS and Pack JK and Seo JS and Park WY},
title = {Local exposure of 849 MHz and 1763 MHz radiofrequency radiation to mouse heads does not induce cell death or cell proliferation in brain},
year = {2008},
url = {https://www.nature.com/articles/emm200834},
}