Author/Authors :
Shekoohi Shooli، F نويسنده Ionizing and Non-ionizing Radiation Protection Research Center (INIRPRC), Shiraz University of Medical Sciences, Shiraz, Iran , , Mortazavi، S A R نويسنده Student Research Committee, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran , , Jarideh، S نويسنده Ionizing and Non-ionizing Radiation Protection Research Center (INIRPRC), Shiraz University of Medical Sciences, Shiraz, Iran , , Nematollahii، S نويسنده Ionizing and Non-ionizing Radiation Protection Research Center (INIRPRC), Shiraz University of Medical Sciences, Shiraz, Iran , , Yousef، F نويسنده Ionizing and Non-ionizing Radiation Protection Research Center (INIRPRC), Shiraz University of Medical Sciences, Shiraz, Iran , , Haghani، M نويسنده Ionizing and Non-ionizing Radiation Protection Research Center (INIRPRC), Shiraz University of Medical Sciences, Shiraz, Iran , , Mortazavi، S M J نويسنده Ionizing and Non-ionizing Radiation Protection Research Center (INIRPRC), Shiraz University of Medical Sciences, Shiraz, Iran , , Shojaei-fard، M B نويسنده Department of Physiology, Fasa University of Medical Sciences, Fasa, Iran ,
Abstract :
Background: Substantial evidence indicates that exposure to electromagnetic
felds (EMF) above certain levels can affect human health through triggering some
biological responses. According to WHO, short-term exposure to EMF at the levels
present in the home/environment do not cause any apparent detrimental effects in
healthy individuals. However, now, there is a debate on whether long-term exposure
to low level EMF can evoke detrimental biological responses. Although based on the
Communications Act of 1934, selling, advertising, using, or importing mobile jammers which block cell phone calls and text messages are illegal acts, in some countries
these devices are being used for security purpose and for prevention of cheating during
examinations.
Methods: In this study 30 male Wistar rats were randomly divided into 3 groups
of 10 each. The control group received no radiation. The sham exposure group was
exposed to a switched-off jammer device. After fasting for 12 hours, the exposure
group was exposed to EMFs at a distance of 50 cm from the jammer. Blood samples
were collected from the tail vein after 24, 48 and72 hours and fasting blood sugar was
measured by using a common blood glucose monitor (BIONIME GM110, Taiwan).
The signifcance level was considered 5% and SPSS Ver. 21 was used for statistical
analysis. The data were analyzed by ANOVA followed by Tukey’s test.
Results: A statistically signifcant difference was observed between blood sugar
level in the control and exposure groups after 24, 48 and 72 hours of continuous irradiation (p values were < 0.001, < 0.001 and 0.002, respectively). No signifcant difference was found between the level of fasting blood sugar in control and sham groups.
Conclusion: Short-term exposure to electromagnetic feld generated by mobile
phone jammer can reduce blood sugar level in adult male rats. These fndings, in contrast with our previous results, lead us to this conclusion that the use of these signal
blocking devices in very specifc circumstances may have some therapeutic effects.
However, further studies have to be performed to fnd out the exact mechanism by
which Jammer EMFs reduce fasting blood sugar.
