ID Number		18
Study Type		In Vivo
Model		900 MHz (GSM) exposure to rats and analysis of cancer (DMBA-induced mamary tumor bioassay)
Details		Sprague Dawley (n=64, female) rats were exposed to 900 (GSM) RF from a base station antenna located 1.8 meters above the animal cages following treatment with a single i.g. dose of DMBA (10 mg/kg) to initiate mammary tumors. Exposure was by groups of 16 and started 10 days after DMBA treatment for 2 hrs/day, 5 days/wk, for 9 weeks to either 0 (sham), 1.4, 2.2, or 3.5 W/kg (whole body average). A second study was also performed using 0, 0.1, 0.7 or 1.4 W/kg. There were no significant effect on latency, multiplicity or tumor volume. Initial findings showed a slight increase in tumor incidence (number of animals with a tumor) at 1.4 W/kg with less of an increase at 2.2 W/kg and no increase at 3.5 W/kg. A subsequent independent experiment showed a decrease in tumor incidence at 1.4 W/kg. Body weight and localization and size of specific tumor types did not change with exposure. The lack of consistent findings as well and no clear dose response effect led the authors to conclude that there were no RF effects, and that the differences observed may have either have been due to chance variation or the time of year that the different arms of the study were performed.
Findings		No Effects
Status		Completed With Publication
Principal Investigator		University of Bordeaux, France - b.veyret@piom.u-bordeaux.fr
Funding Agency		France Telecom/CNET
Country		FRANCE
References		Anane , R et al. Radiat Res, (2003) 160:492-497
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