ID Number		44
Study Type		In Vitro
Model		836 MHz (TDMA), 813 MHz (iDEN) exposure to cell lines and analysis of DNA breaks
Details		Molt-4 (T-lymphoblastoid) cells were exposed to 835 MHz (iDEN and TDMA) signals for 2, 3, or 21 hours in a TEM cell and analyzed by comet assay (Singh method) for DNA breaks. The study reported the following results: iDEN 2.4 uW/g decreased DNA damage iDEN 24 uW/g increased DNA damage TDMA 2.4 uW/g decreased DNA damage TDMA 24 uW/g decreased DNA damage
Findings		Effects
Status		Completed With Publication
Principal Investigator		University of California at Riverside, USA
Funding Agency		Motorola
Country		UNITED STATES
References		Phillips, JL et al. Bioelectrochem. & Bioenerg., (1998) 45:103-110
Comments		The use of the Kolmogorov-Smirnoff statistical analysis lacked enough data points to obtain a normal distribution (as was reported by Lai and Singh, Bioelectro-magnetics (1995) 16:207-210 and Int J Radiat Biol (1996) 69:513-521). There was also a high level of variability between control samples within any given experiment, as well as between experiments (for example, if the controls from the 2.4 and 24uW/g experiments are switched there is no difference at either exposure condition). The tight SEM values in the paper do not correlate with the widely variable raw data numbers.