Study type: Medical/biological study (experimental study)

Study of high-frequency electromagnetic field effect on some somatic and neuro-behavioral characteristics in healthy and neurodefective mice. med./bio.

Published in: Environmentalist 2007; 27 (4): 501-504

Aim of study (acc. to author)

To study the effect of long-term exposure to radio frequency electromagnetic field on some somatic and neural characteristics in neurodefective Lurcher mutant (+/Lc) and normal wild type mice (+/+).

Background/further details

Both newborn (n=162) and young adult (3 months, n=94) animals were exposed to radio frequency electromagnetic field (870 MHz) from 1st to 21st day (2.5 h daily) or from 91st to 120th day (3 h daily) respectively. In all animals the development of body weight was observed. Additionally, in the exposed adult animals the spatial learning ability, motor functions and CNS excitability was studied.

Endpoint

Exposure

Exposure Parameters
Exposure 1: 870 MHz
Exposure duration: repeated daily exposure, 2.5 h/day, for 21 days
  • power: 10 W
  • SAR: 1.44 mW/g maximum
  • SAR: 0.05 mW/g minimum
Exposure 2: 870 MHz
Exposure duration: repeated daily exposure, 3 h/day, for 30 days
  • power: 10 W
  • SAR: 1.44 mW/g maximum
  • SAR: 0.05 mW/g minimum

Exposure 1

Main characteristics
Frequency 870 MHz
Type
Exposure duration repeated daily exposure, 2.5 h/day, for 21 days
Exposure setup
Exposure source
Setup The radiation was directed by a waveguide to a plastic box with animals placed just in front of it.
Additional info Newborn mice (n = 162) were exposed from the 1st to the 21st day.
Parameters
Measurand Value Type Method Mass Remarks
power 10 W - - - -
SAR 1.44 mW/g maximum calculated - -
SAR 0.05 mW/g minimum calculated - -

Exposure 2

Main characteristics
Frequency 870 MHz
Type
Exposure duration repeated daily exposure, 3 h/day, for 30 days
Exposure setup
Exposure source
Additional info Young adult mice (n = 94) were exposed from the 91st to the 120th day.
Parameters
Measurand Value Type Method Mass Remarks
power 10 W - - - -
SAR 1.44 mW/g maximum calculated - -
SAR 0.05 mW/g minimum calculated - -

Exposed system:

Methods Endpoint/measurement parameters/methodology

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

Main outcome of study (acc. to author)

The exposed animals exhibited mild differences of body weight compared to unexposed controls. The long-term exposure did not significantly influence the ability to learn in the Morris water maze. Significant lower swimming speed was found in the irradiated Lurcher mutant mice when compared to controls. No significant differences were found between irradiated animals and controls in the CNS excitability and motor functions.

Study character:

Study funded by

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