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Medical/biological study (experimental study)

Mobile phone exposure does not induce apoptosis on spermatogenesis in rats.

Published in: Arch Med Res 2008; 39 (1): 40-44

Aim of study (acc. to author)

To study the apoptosis-inducing effect of mobile phone long-term exposure (10 months) on spermatogonia in seminiferous tubules.
Background/further details: 31 rats were separated into three groups: cage control (10), sham exposure group (7), and exposure group (14).

Endpoint

Exposure

Exposure Parameters
Exposure 1: 900 MHz
Modulation type: pulsed
Exposure duration: repeated daily exposure, 2 h/day, for 10 months
Exposure 1
Main characteristics
Frequency 900 MHz
Type
Exposure duration repeated daily exposure, 2 h/day, for 10 months
Modulation
Modulation type pulsed
Pulse width 577 µs
Repetition frequency 217 Hz
Exposure setup
Exposure source
Distance between exposed object and exposure source 1 cm
Setup Rats were exposed on a carousel restrained in ventilated cone-headed Plexiglas tubes (about 18 cm long and 6.4 cm in diameter) with their noses at 1 cm from the central antenna.
Sham exposure A sham exposure was conducted.
Parameters
Measurand Value Type Method Mass Remarks
power 2 W peak value - - -
electric field strength 25.73 V/m - measured - 9.48-25.73 V/m
power density 0.149 mW/cm² mean measured - 0.012-0.149 mW/cm²
SAR 0.57 W/kg - calculated - 0.07-0.57 W/kg
Measurement and calculation details
Power density and electrical field around the testes were measured using a radiation meter. SAR was approximated by σ/ρ*E²rms. The values for σ and ρ were based on [Peyman et al., 2001].
Reference articles
Exposed system:

Methods Endpoint/measurement parameters/methodology

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

Main outcome of study (acc. to author)

The data showed that 2 h/day (7 days/week) exposure of 900 MHz over a period of 10 months does not affect the active caspase-3 levels in testes.
Study character:

Study funded by

  • not stated/no funding

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