ID Number		43
Study Type		In Vitro
Model		847.74 MHz (CDMA), 2450 MHz (CW) exposure to cell lines and analysis of DNA breaks
Details		C3H 10T 1/2 fiberblast cells were exposed to either 835 MHz CDMA at 0.6 and 1.9 W/kg for 2, 4, or 24 hrs in RTL exposure system, or to 2450 MHz CW at 0.6 and 1.2 W/kg for 2 hours +/- a 4 hour recovery period in a circular waveguide exposure system, had no effect on DNA single or double strand breaks using neutral and alkaline Olive comet assay methods. In a subsequent study, C3H 10T 1/2 fiberblast cells were exposed at higher SARs of 3.2 to 5.1 W/kg for 2, 4, or 24 hrs in RTL exposure system. In these studies also, exposure had no effect on DNA single or double strand breaks using neutral and alkaline Olive comet assay methods.
Findings		No Effects
Status		Completed With Publication
Principal Investigator		Washington University, St. Louis MO, USA
Funding Agency		Motorola
Country		UNITED STATES
References		Li, L et al. Radiation Research, (2001) 156:328-332 Moros, EG et al. Bioelectromagnetics, (1999) 20:65-80 Pickard, WF et al. Bioelectromagnetics, (1999) 20:183-193 Malyapa, RS et al. Radiat. Res., (1997) 148:618-627 Malyapa, RS et al. Radiat. Res., (1997) 148:608-617 Li, L et al. Radiation Research, (2001) 156:328-332
Comments		This study using cell phone signals, like previous studies performed at 2450 MHz (#39), addresses previous reports by Lai & Singh of DNA damage following microwave exposure (Bioelectromagnetics (1995) 16:207-210; Int J Radiat Biol (1996) 69:513-521).