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    DOES 3-G MOBILE PHONE RADIOFREQUENCY AFFECT OXIDATIVE STRESS, SPERM CHARACTERISTICS AND TESTIS HISTOLOGY?
    (Parlar Scientific Publications (P S P), 2011) Oguzturk, Hakan; Beytur, Ali; Ciftci, Osman; Turtay, M. Gokhan; Samdanci, Emine; Dilek, Omer Faruk
    This study aims to investigate the effects of electromagnetic radiation (EMR) delivered by mobile phones on oxidative stress, histological damage and sperm characteristic in rats. For this purpose, 18 male rats (9 in the study group and 9 in the control group) were used. The rats in experimental group were exposed to EMR from an active (1.9-2.2 GHz) mobile phone (MP) for 20 min per day for 20 days. The rats in control group were exposed to an MP without a battery for the same period. The results showed that there was no significant differences in oxidative stress parameters (TBARS, GSH, SOD, CAT, GSH-Px), testis histology and reproductive organ weight (testis, epididymis, prostate weight) between the control and the study groups. On the other hand, it was observed that the use of MPs may have negative effects on the sperm characteristics (especially sperm motility) in rats. In conclusion, it was suggested that the exposure of EMR caused a decrease of fertility capacity due to their effects on sperm characteristics.
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    Effects of electromagnetic radiation from 3G mobile phone on heart rate, blood pressure and ECG parameters in rats
    (Sage Publications Inc, 2012) Colak, Cengiz; Parlakpinar, Hakan; Ermis, Necip; Tagluk, Mehmet Emin; Colak, Cemil; Sarihan, Ediz; Dilek, Omer Faruk
    Effects of electromagnetic energy radiated from mobile phones (MPs) on heart is one of the research interests. The current study was designed to investigate the effects of electromagnetic radiation (EMR) from third-generation (3G) MP on the heart rate (HR), blood pressure (BP) and ECG parameters and also to investigate whether exogenous melatonin can exert any protective effect on these parameters. In this study 36 rats were randomized and evenly categorized into 4 groups: group 1 (3G-EMR exposed); group 2 (3G-EMR exposed + melatonin); group 3 (control) and group 4 (control + melatonin). The rats in groups 1 and 2 were exposed to 3G-specific MP's EMR for 20 days (40 min/day; 20 min active (speech position) and 20 min passive (listening position)). Group 2 was also administered with melatonin for 20 days (5 mg/kg daily during the experimental period). ECG signals were recorded from cannulated carotid artery both before and after the experiment, and BP and HR were calculated on 1st, 3rd and 5th min of recordings. ECG signals were processed and statistically evaluated. In our experience, the obtained results did not show significant differences in the BP, HR and ECG parameters among the groups both before and after the experiment. Melatonin, also, did not exhibit any additional effects, neither beneficial nor hazardous, on the heart hemodynamics of rats. Therefore, the strategy (noncontact) of using a 3G MP could be the reason for ineffectiveness; and use of 3G MP, in this perspective, seems to be safer compared to the ones used in close contact with the head. However, further study is needed for standardization of such an assumption.