Study type: Medical/biological study (experimental study)

Impact of 864 MHz or 935 MHz radiofrequency microwave radiation on the basic growth parameters of V79 cell line. med./bio.

Published in: Acta Biol Hung 2008; 59 (1): 67-76

Aim of study (acc. to author)

To study the influence of 864 MHz and 935 MHz radiofrequency fields on the cell growth, colony forming ability, and cell viability of V79 cells.

Background/further details

Cell growth curves were determined 24, 48, 72, 96, and 120 hours after exposure.
Cf. publication 13986.

Endpoint

Exposure

Exposure Parameters
Exposure 1: 864 MHz
Modulation type: CW
Exposure duration: continuous for 1, 2, and 3 h
Exposure 2: 935 MHz
Modulation type: CW
Exposure duration: continuous for 1, 2, and 3 h

Exposure 1

Main characteristics
Frequency 864 MHz
Type
Charakteristic
  • guided field
Exposure duration continuous for 1, 2, and 3 h
Modulation
Modulation type CW
Exposure setup
Exposure source
Setup Cells were plated on 24-well plates (10,000 in 1 ml) for determining cell growth or on 10-cm Petri dishes (200 in 5 ml) for colony-forming ability.
Sham exposure A sham exposure was conducted.
Parameters
Measurand Value Type Method Mass Remarks
power density 0.14 W/m² - - - ± 0.024 W/m²
SAR 0.08 W/kg mean calculated - -

Exposure 2

Main characteristics
Frequency 935 MHz
Type
Charakteristic
  • guided field
Exposure duration continuous for 1, 2, and 3 h
Modulation
Modulation type CW
Exposure setup
Exposure source
Sham exposure A sham exposure was conducted.
Parameters
Measurand Value Type Method Mass Remarks
power density 0.17 W/m² - - - ± 0.002 W/m²
SAR 0.12 W/kg mean calculated - -

Reference articles

Exposed system:

Methods Endpoint/measurement parameters/methodology

Investigated system:
Time of investigation:
  • after exposure

Main outcome of study (acc. to author)

Cell growth impact was time-dependent for both fields: The growth of the 864 MHz exposed cells was significant decreased after 2 h and 3 h exposure 72 h after irradiation. A similar effect was observed 72 h after exposure for cells exposed to 935 MHz microwaves for 3 h.
Colony forming ability and cell viability in cells exposed to 864 MHz or 935 MHz microwaves did not significantly differ from control cells.

Study character:

Study funded by

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