Study type: Medical/biological study (experimental study)

Effects of electromagnetic radiation from 3G mobile phone on heart rate, blood pressure and ECG parameters in rats med./bio.

Published in: Toxicol Ind Health 2012; 28 (7): 629-638

Aim of study (acc. to author)

To study the effects of electromagnetic field exposure from third generation of mobile communication systems on the heart rate, blood pressure and ECG parameters in anaesthetized rats as well as whether melatonin administration can exert any protective effect on these parameters.

Background/further details

36 rats were divided into four groups (each group n=9): 1) exposure group, 2) exposure + melatonin (5 mg/kg body weight, daily for 20 days) group, 3) control group, 4) control + melatonin group. Parameters were recorded before the first and the final day of the experiment.



Exposure Parameters
Exposure 1: 1.9–2.2 GHz
Exposure duration: 40 min/day for 20 days

General information

rats were treated in four groups: i) EMF exposure ii) EMF exposure + melatonin iii) control iv) control + melatonin

Exposure 1

Main characteristics
Frequency 1.9–2.2 GHz
Exposure duration 40 min/day for 20 days
Exposure setup
Exposure source
Setup rats kept in 40 cm long, 30 cm wide and 15 cm high plastic cages without wood chip bedding; cell phone placed in contact with the cage's underside; each cell phone for 20 min passive (listening) and for 20 min active (speech) with 20 min recorded speech; cages placed 10 m apart; control group exposed to cell phones in stand-by mode

No parameters are specified for this exposure.

Exposed system:

Methods Endpoint/measurement parameters/methodology

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

Main outcome of study (acc. to author)

The data did not show any significant differences in the blood pressure, heart rate and ECG parameters among the groups both before and after the experiment. Melatonin also did not exhibit any additional effects, neither beneficial nor hazardous.

Study character:

Study funded by

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