Effects of GSM-900 microwaves on DMBA-induced mammary gland tumors in female Sprague-Dawley rats.
Anane R, Dulou P-E, Taxile M, Geffard M, Crespeau F, Veyret B. · 2003
View Original AbstractCell phone radiation showed inconsistent effects on breast tumor promotion in rats, with no clear dose-response pattern.
Plain English Summary
Researchers exposed rats to cell phone radiation for 2 hours daily while monitoring breast tumor development. Results showed inconsistent effects across different radiation levels, with no clear pattern of increased cancer risk, leading scientists to conclude the evidence was too weak to establish harm.
Why This Matters
This study represents an important attempt to examine whether cell phone radiation acts as a cancer promoter - meaning it doesn't cause cancer directly but accelerates existing tumor growth. The exposure levels tested (0.1 to 3.5 W/kg SAR) span from well below to above typical cell phone exposures, which range from about 0.5 to 2.0 W/kg during calls. What makes these results particularly noteworthy is their inconsistency - the researchers found some tumor promotion at moderate exposure levels but not at higher ones, which defies the typical dose-response relationship you'd expect if radiation were truly promoting cancer growth. While negative studies like this are often dismissed, the reality is that inconsistent results across different exposure levels suggest the relationship between EMF and cancer promotion may be more complex than simple linear effects. The science demonstrates we still lack definitive answers about EMF's role in cancer development, underscoring why precautionary approaches to cell phone use remain prudent.
Exposure Details
- SAR
- 0.1 , 0.7, 1.4, 2.2 and 3.5 W/kg
- Source/Device
- GSM-900
- Exposure Duration
- 2 h/day, 5 days/week for 9 weeks
Where This Falls on the Concern Scale
Study Details
The aim of this investigation was to test the hypothesis that sub-chronic whole-body exposure to GSM-900 microwaves had an effect on tumor promotion and progression.
Mammary tumors were induced by ingestion of a single 10-mg dose of 7,12-dimethylbenz(a)anthracene (D...
The results are negative in terms of latency, multiplicity and tumor volume. With regard to tumor in...
Overall, these results, which are rather inconsistent, do not bring new evidence of a co-promoting effect of exposure to GSM-900 signals using the DMBA rat model.
Show BibTeX
@article{r_2003_effects_of_gsm900_microwaves_820,
author = {Anane R and Dulou P-E and Taxile M and Geffard M and Crespeau F and Veyret B.},
title = {Effects of GSM-900 microwaves on DMBA-induced mammary gland tumors in female Sprague-Dawley rats.},
year = {2003},
url = {https://meridian.allenpress.com/radiation-research/article-abstract/160/4/492/41833/Effects-of-GSM-900-Microwaves-on-DMBA-Induced},
}