Study type: Medical/biological study (experimental study)

Effect of electromagnetic radiofrequency radiation on the rats' brain, liver and kidney cells measured by comet assay. med./bio.

Published in: Coll Antropol 2011; 35 (4): 1259-1264

Aim of study (acc. to author)

To evaluate DNA damage in rats' brain, liver and kidney cells after radiofrequency exposure at 915 MHz.

Background/further details

The rats were either exposed or sham exposed (n=9 per group) for one hour every day on fourteen consecutive days. Immediately after the last exposure, rats were sacrificed and samples of organs were taken for comet assay.



Exposure Parameters
Exposure 1: 915 MHz
Exposure duration: 1 hour/day, 7 days/week for 2 weeks

Exposure 1

Main characteristics
Frequency 915 MHz
Exposure duration 1 hour/day, 7 days/week for 2 weeks
Exposure setup
Exposure source
Chamber Plexiglas cage: 25 cm x 7,5 cm x 7,5 cm; no free movement during irradiation due to cage dimensions
Setup each animal was placed inside an individual cage and then put into the GTEM cell for irradiation
Sham exposure A sham exposure was conducted.
Additional info signal generator, signal amplifier and signal modulator were employed
Measurand Value Type Method Mass Remarks
power density 2.4 W/m² - - - corresponds to a whole-body SAR rate of 0,6 W/kg
electric field strength 30 V/m - - - whole-body uniform

Reference articles

  • Zhao TY et al. (2007): Exposure to cell phone radiation up-regulates apoptosis genes in primary cultures of neurons and astrocytes.

Exposed system:

Methods Endpoint/measurement parameters/methodology

Investigated system:
Investigated organ system:
Time of investigation:
  • after exposure

Main outcome of study (acc. to author)

The mean tail length obtained for liver and kidney in the exposed group was significantly elongated in comparison to the sham exposed group. There was no difference in the length of the tail obtained for brain between the exposed and the sham exposed group. Differences in tail intensity were not significant between exposed and sham exposed groups.

Study character:

Study funded by

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