• experimental
  
• epidemiological
  

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Medical/biological Study (experimental study)

Effects of electromagnetic field produced by mobile phones on the oxidant and antioxidant status of rats. med./biol.

PubMed Entry

Aim of study (according to author)
To investigate the effect of electromagnetic fields produced by GSM mobile phones on the antioxidant capacity in the blood of rats.
Background/further details:
99 rats were divided into three groups: 1) control group (n=33); 2) exposure group with a fractionate dose of electromagnetic fields (n=42); 3) exposure group with an acute dose of electromagnetic fields (n=24).

Endpoint

• antioxidant capacity of the blood

Exposure
General category: digital mobile phone, GSM

Field characteristics	Parameters
field 1: 900 MHz exposure duration: 15 min/day for 4 days	SAR: 0.25 W/kg average over mass (whole body)
field 2: 900 MHz exposure duration: continuous for 1 h	SAR: 0.25 W/kg average over mass (whole body)

Exposed system:
animal (species/strain): rat
whole body exposure

Methods
Endpoint/Measurement parameters/Methodology

• antioxidant capacity: determination of vitamin C and vitamin A in plasma; determination of vitamin E and reduced glutathione in erythrocytes; catalase activity; superoxide dismutase activity

Main outcome of study (according to author)
Compared to the control group, both exposure groups displayed a reduced plasma concentration of vitamin C, vitamin A and vitamin E, reduced glutathione and significant decreases in catalase and superoxide dismutase enzyme activities. Except for vitamin A, all values were significantly lower in the acute exposure group than the fractionate exposure group.
The authors conclude that exposure to acute doses of electromagnetic field exposure produced by mobile phones is more hazardous than that produced by fractionated doses.

(Study character: medical/biological study, experimental study, full/main study)

Study funded by

• not stated

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