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Medical/biological study (experimental study)

Evaluation of the mobile phone electromagnetic radiation on serum iron parameters in rats.

Published in: Afr Health Sci 2017; 17 (1): 186-190

Aim of study (acc. to author)

To investigate the effects of an electromagnetic field emitted by a mobile phone on iron parameters in the serum of rats.
Background/further details: Male rats were divided into 4 groups (n=8 per group): 1) cage control, 2) sham exposure group, 3) exposure group with mobile phone in speech mode and 4) exposure group with mobile phone in stand mode.

Endpoint

Exposure

Exposure Parameters
Exposure 1: 890–915 MHz
Modulation type: AM
Exposure duration: 2 hours/day for 10 weeks (unclear if mobile phone was "standby" or "off" for the other 10 hours when rats remained in the plastic boxes)
speech modus
Exposure 2: 890–915 MHz
Modulation type: AM
Exposure duration: 12 hours/day for 10 weeks
standby modus
Exposure 1
Main characteristics
Frequency 890–915 MHz
Type
Exposure duration 2 hours/day for 10 weeks (unclear if mobile phone was "standby" or "off" for the other 10 hours when rats remained in the plastic boxes)
Additional info speech modus
Modulation
Modulation type AM
Modulation frequency 217 Hz
Exposure setup
Exposure source
Chamber circular plastic boxes were used for exposure and sham exposure; rats were kept in these boxes for 12 hours
Setup 4 rats were exposed simultaneously; the mobile phone was placed 1 cm below and in the middle of the boxes; rats were placed in the box with their testes directed towards the mobile phone
Sham exposure A sham exposure was conducted.
Parameters
Measurand Value Type Method Mass Remarks
SAR 0.96 W/kg maximum - - -
power 250 mW mean - - -
power 2 W peak value - - -
Additional parameter details
Remark EMF-Portal: unclear if field parameters belong to speech mode or standby mode (authors state a reference (Dasdag et al., 1999), however other SAR values are given in this article, maybe manufacturer specifications?)
Exposure 2
Main characteristics
Frequency 890–915 MHz
Type
Exposure duration 12 hours/day for 10 weeks
Additional info standby modus
Modulation
Modulation type AM
Modulation frequency 217 Hz
Exposure setup
Exposure source
Parameters
Measurand Value Type Method Mass Remarks
SAR 0.96 W/kg maximum - - -
power 250 mW mean - - -
power 2 W peak value - - -
Reference articles
Exposed system:

Methods Endpoint/measurement parameters/methodology

Investigated material:
Time of investigation:
  • after exposure

Main outcome of study (acc. to author)

No significant differences between the exposed groups (groups 3 and 4) and the cage control (group 1) were found regarding the level of iron and ferritin. However, the unsaturated and the total iron-binding capacity were significantly decreased in the sham exposure and exposure groups (groups 2, 3, and 4) compared to the cage control (group 1) (Remark EMF-Portal: Results taken from the table, significant difference between sham exposure and control group was not mentioned in running text).
The authors conclude that exposure of rats to an electromagnetic field emitted by a mobile phone could influence the unsaturated and the total iron-binding capacity.
Study character:

Study funded by

  • not stated/no funding

Related articles

  • El-Bediwi AB et al. (2013): Influence of electromagnetic radiation produced by mobile phone on some biophysical blood properties in rats.
  • Celikozlu SD et al. (2012): The effects of long-term exposure of magnetic field via 900-MHz GSM radiation on some biochemical parameters and brain histology in rats.