Study type: Medical/biological study (experimental study)

An in vitro study of the effects of exposure to a GSM signal in two human cell lines: monocytic U937 and neuroblastoma SK-N-SH med./bio.

Published in: Cell Biol Int 2006; 30 (10): 793-799

Aim of study (acc. to author)

To examine possible biological effects of a GSM-like signal on cell viability and gene expression (e.g. heat shock protein) in two human cell lines in vitro.



Exposure Parameters
Exposure 1: 900 MHz
Modulation type: pulsed
Exposure duration: continuous for 1 or 2 h
  • SAR: 0.2 W/kg

Exposure 1

Main characteristics
Frequency 900 MHz
  • guided field
Exposure duration continuous for 1 or 2 h
Modulation type pulsed
Duty cycle 12.5 %
Repetition frequency 217 Hz
Pulse type rectangular
Exposure setup
Exposure source
Chamber The TEM cell was housed in a 37°C, 5% CO2 incubator.
Setup Cells were seeded into 25-cm² cell culture flasks in 17 ml of medium.
Sham exposure A sham exposure was conducted.
Measurand Value Type Method Mass Remarks
SAR 0.2 W/kg - measured and calculated - -

Reference articles

Exposed system:

Methods Endpoint/measurement parameters/methodology

Investigated system:
Time of investigation:
  • after exposure

Main outcome of study (acc. to author)

No significant differences between sham exposed and radiofrequency exposed cells in cell viability, cell cycle distribution, or gene expression were found.

Study character:

Study funded by

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