Study type:
Medical/biological study
(experimental study)
Electromagnetic radiation at 835 MHz changes the morphology and inhibits proliferation of a human astrocytoma cell line
med./bio.
By:
French PW, Donnellan M, McKenzie DR
Published in: Bioelectrochem Bioenerg 1997; 43 (1): 13-18
Aim of study (acc. to author)
Endpoint
Exposure
Exposure
Parameters
Exposure 1:
864.3 MHz
Exposure duration:
repeated daily
exposure , 3 x 20 min/day (at 4-h intervals), for 7 days
Exposure 2:
864.3 MHz
Exposure duration:
repeated daily
exposure , 3 x 20 min/day (at 4-h intervals), for 7 days
Frequency
864.3 MHz
Type
Waveform
Exposure duration
repeated daily exposure , 3 x 20 min/day (at 4-h intervals), for 7 days
Exposure source
Setup
The samples in 75 cm² culture flasks were placed on a wooden platform and 0.04 m above the mid-plane of an aluminium box of 1.10 m internal side length. The antenna was mounted horizontally at the centre of the mid-plane.
Sham exposure
A sham exposure was conducted.
Additional info
The antenna produced a magnetic field on the mid-plane of the box, essentially along the vertical or z-axis direction of the box. The electric field was transverse in the xy plane. Control cells were placed in the Faraday cage but without irradiation .
Measurand
Value
Type
Method
Mass
Remarks
power
2 W
-
-
-
-
power density
2.4 mW/cm²
spatial average
measured
-
-
power density
8.1 mW/cm²
maximum
measured
-
± 3 mW/cm²
SAR
8.96 W/kg
mean
measured
-
-
Frequency
864.3 MHz
Type
Waveform
Exposure duration
repeated daily exposure , 3 x 20 min/day (at 4-h intervals), for 7 days
Measurand
Value
Type
Method
Mass
Remarks
power
10 W
-
-
-
-
power density
40 mW/cm²
maximum
measured
-
± 15 mW/cm²
Extended view
Compact view
Methods
Endpoint/measurement parameters/methodology
Main outcome of study (acc. to author)
Study funded by
Comments on this article
French PW et al.
(1998):
Electromagnetic radiation at 835 MHz changes the morphology and inhibits proliferation of a human astrocytoma cell line
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