Study type: Medical/biological study (experimental study, observational study)

Effect of cell phone exposure on physiologic and hematologic parameters of male medical students of Bijapur (Karnataka) with reference to serum lipid profile. med./bio.

Published in: J Basic Clin Physiol Pharmacol 2010; 21 (2): 201-210

Aim of study (acc. to author)

To study the effect of long-term cell phone exposure on physiological and hematological parameters and a single call effect on heart rate, blood pressure and oxygen saturation of healthy male medical students.

Background/further details

The students were divided into two groups: group I (n=22) comprised first year medical students who never were exposed to cell phones and group II (n=35) consisted of final year (fourth year) medical students who were using cell phones for more than four years.

Endpoint

Exposure

Exposure Parameters
Exposure 1: 900 MHz
Exposure duration: 150 phone calls/month (total duration: 500 min/month) for more than 4 years
long term exposure
-
Exposure 2: 900 MHz
Exposure duration: 1 min
-

Exposure 1

Main characteristics
Frequency 900 MHz
Type
Exposure duration 150 phone calls/month (total duration: 500 min/month) for more than 4 years
Additional info long term exposure
Exposure setup
Exposure source
Parameters

No parameters are specified for this exposure.

Exposure 2

Main characteristics
Frequency 900 MHz
Type
Exposure duration 1 min
Additional info acute exposure
Additional info tri band EGSM
Exposure setup
Exposure source
  • Nokia handset 5310
Parameters

No parameters are specified for this exposure.

Exposed system:

Methods Endpoint/measurement parameters/methodology

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

Main outcome of study (acc. to author)

The data showed no significant differences between the groups in basal heart rate, systolic blood pressure, oxygen saturation, or various hematologic parameters. Acute exposure (single call) showed a significant increase in peak heart rate in group II as compared with group I and a significant decrease in peak oxygen saturation in group I as compared with group II. Serum total cholesterol, VLDL-cholesterol, and triglycerides concentrations were significantly higher in group II (long-term cell phone use) than in group I, suggesting a mild alteration of lipid profile among group II subjects.

Study character:

Study funded by

Related articles