Study type: Medical/biological study (observational study)

Monitoring the effects of mobile phone use on the brain by proton magnetic resonance spectroscopy med./bio.

By: Khiat A, Boulanger Y, Breton G
Published in: Int J Radiat Biol 2006; 82 (9): 681-685
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Aim of study (acc. to author)

To determine whether extensive use of mobile phones affects brain metabolites detectable by proton magnetic resonance spectroscopy.

Background/further details

Proton magnetic resonance spectroscopy allows one to non-invasively examine the brain by measuring the levels of several metabolites reflecting for example neuronal condition and membrane metabolism.
21 mobile phone users and 15 control subjects were studied.

Endpoint

Exposure

Exposure Parameters
Exposure 1:
Exposure duration: daily exposure of 1 to 4 h for 2 to 10 years
-

Exposure 1

Main characteristics
Frequency
Exposure duration daily exposure of 1 to 4 h for 2 to 10 years
Exposure setup
Exposure source
Setup the mobile phone was held to the right ear
Parameters

No parameters are specified for this exposure.

Exposed system:

Methods Endpoint/measurement parameters/methodology

Investigated system:
Investigated organ system:
Time of investigation:
  • after exposure

Main outcome of study (acc. to author)

No statistically significant changes in the N-acetylaspartate/creatinine, choline/creatinine and myo-inositol/creatinine ratios were measured between mobile phone users and control subjects and between the exposed and contralateral temporal areas, i.e. extensive exposure to mobile phone does not cause proton magnetic resonance spectroscopy-detectable brain metabolic changes.

Study character:

Study funded by

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