Study type: Medical/biological study (experimental study)

Effects of exposure to electromagnetic field radiation (EMFR) generated by activated mobile phones on fasting blood glucose. med./bio.

Published in: Int J Occup Med Environ Health 2013; 26 (2): 235-241

Aim of study (acc. to author)

To evaluate the effects of an exposure to radiofrequency electromagnetic fields emitted by a mobile phone on the fasting blood glucose in rats.

Background/further details

5 groups of rats were examined (n=8 per group): 1.) Control group, 2.) less than 15 minutes exposure per day, 3.) 15-30 minutes exposure per day, 4.) 31-45 minutes exposure per day and 5.) 46-60 minutes exposure per day.
At the end of the experiment the animals were kept without food for 12 hours and afterwards blood samples were taken.

Endpoint

Exposure

Exposure Parameters
Exposure 1: 1,800 MHz
Exposure duration: less than 15 min/day for 3 month
-
Exposure 2: 1,800 MHz
Exposure duration: 15-30 min/day for 3 month
-
Exposure 3: 1,800 MHz
Exposure duration: 31-45 min/day for 3 month
-
Exposure 4: 1,800 MHz
Exposure duration: 46-60 min/day for 3 month
-

Exposure 1

Main characteristics
Frequency 1,800 MHz
Type
Exposure duration less than 15 min/day for 3 month
Exposure setup
Exposure source
Setup mobile phone in the call mode was placed in the center of the mouse cage; cage was made of plastic (length 18 inches, width 12 inches); animals were in close proximity to the phone
Parameters

No parameters are specified for this exposure.

Exposure 2

Main characteristics
Frequency 1,800 MHz
Type
Exposure duration 15-30 min/day for 3 month
Exposure setup
Exposure source
Parameters

No parameters are specified for this exposure.

Exposure 3

Main characteristics
Frequency 1,800 MHz
Type
Exposure duration 31-45 min/day for 3 month
Exposure setup
Exposure source
Parameters

No parameters are specified for this exposure.

Exposure 4

Main characteristics
Frequency 1,800 MHz
Type
Exposure duration 46-60 min/day for 3 month
Exposure setup
Exposure source
Parameters

No parameters are specified for this exposure.

Reference articles

  • Narayanan SN et al. (2009): Spatial memory performance of Wistar rats exposed to mobile phone.
  • Gul A et al. (2009): The effects of microwave emitted by cellular phones on ovarian follicles in rats.
  • Mailankot M et al. (2009): Radio frequency electromagnetic radiation (RF-EMR) from GSM (0.9/1.8GHz) mobile phones induces oxidative stress and reduces sperm motility in rats.
  • Sokolovic D et al. (2008): Melatonin reduces oxidative stress induced by chronic exposure of microwave radiation from mobile phones in rat brain.

Exposed system:

Methods Endpoint/measurement parameters/methodology

Investigated system:
Time of investigation:
  • after exposure

Main outcome of study (acc. to author)

In the groups exposed longer than 15 minutes, the blood glucose was significantly increased when compared to the control group, while in the groups exposed longer than 30 minutes the insulin level was significantly increased.
The beta cell function was significantly increased in the group exposed less than 15 minutes compared to the control group, while the insulin resistance was significantly increased in the groups exposed for 15-30 minutes and 46-60 minutes.
The authors conclude that there could be an association between mobile phone exposure and increased fasting blood glucose in rats.

Study character:

Study funded by

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