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J Chem Neuroanat. 2016 Sep;75(Pt B):116-22. doi: 10.1016/j.jchemneu.2016.01.003. Epub 2016 Jan 8.

Does prolonged radiofrequency radiation emitted from Wi-Fi devices induce DNA damage in various tissues of rats?

Author information

1
Department of Biophysics, Medical Faculty of Dicle University, 21280 Diyarbakir, Turkey.
2
Department of Biophysics, Medical Faculty of Istanbul Medeniyet University, Istanbul, Turkey. Electronic address: sdasdag@gmail.com.
3
Department of Biophysics, Medical Faculty of Erciyes University, 38039 Kayseri, Turkey.
4
Department of Histology-Embryology, Medical Faculty of Erciyes University, 38039 Kayseri, Turkey.
5
Department of Biophysics, Medical Faculty of Istanbul Medeniyet University, Istanbul, Turkey.
6
Student, Medical School of Koc University, 34450 Istanbul, Turkey.

Abstract

Wireless internet (Wi-Fi) providers have become essential in our daily lives, as wireless technology is evolving at a dizzying pace. Although there are different frequency generators, one of the most commonly used Wi-Fi devices are 2.4GHz frequency generators. These devices are heavily used in all areas of life but the effect of radiofrequency (RF) radiation emission on users is generally ignored. Yet, an increasing share of the public expresses concern on this issue. Therefore, this study intends to respond to the growing public concern. The purpose of this study is to reveal whether long term exposure of 2.4GHz frequency RF radiation will cause DNA damage of different tissues such as brain, kidney, liver, and skin tissue and testicular tissues of rats. The study was conducted on 16 adult male Wistar-Albino rats. The rats in the experimental group (n=8) were exposed to 2.4GHz frequency radiation for over a year. The rats in the sham control group (n=8) were subjected to the same experimental conditions except the Wi-Fi generator was turned off. After the exposure period was complete the possible DNA damage on the rat's brain, liver, kidney, skin, and testicular tissues was detected through the single cell gel electrophoresis assay (comet) method. The amount of DNA damage was measured as percentage tail DNA value. Based on the DNA damage results determined by the single cell gel electrophoresis (Comet) method, it was found that the% tail DNA values of the brain, kidney, liver, and skin tissues of the rats in the experimental group increased more than those in the control group. The increase of the DNA damage in all tissues was not significant (p>0.05). However the increase of the DNA damage in rat testes tissue was significant (p<0.01). In conclusion, long-term exposure to 2.4GHz RF radiation (Wi-Fi) does not cause DNA damage of the organs investigated in this study except testes. The results of this study indicated that testes are more sensitive organ to RF radiation.

KEYWORDS:

2.4GHz Radiofrequency radiation; Comet assay; DNA damage; Wi-Fi

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