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Anxiety-like behavioural effects of extremely low-frequency electromagnetic field in rats.
Environ Sci Pollut Res Int. 2017 Jul 29. doi: 10.1007/s11356-017-9710-1. (Epub ahead of print)
Djordjevic NZ 1, Paunović MG 2, Peulić AS 3.
1. Department of Biomedical Sciences, State University of Novi Pazar, Vuka Karadzica bb, Novi Pazar, 36300, Serbia. firstname.lastname@example.org.
2. Institute of Biology and Ecology, Faculty of Science, University of Kragujevac, Kragujevac, Serbia.
3. Faculty of engineering, University of Kragujevac, Kragujevac, Serbia.
In recent years, extremely low-frequency electromagnetic field (ELF-EMF) has received considerable attention for its potential biological effects. Numerous studies have shown the role of ELF-EMF in behaviour modulation. The aim of this study was to investigate the effect of short-term ELF-EMF (50 Hz) in the development of anxiety-like behaviour in rats through change hypothalamic oxidative stress and NO. Ten adult male rats (Wistar albino) were divided in two groups: control group-without exposure to ELF-EMF and experimental group-exposed to ELF-EMF during 7 days. After the exposure, time open field test and elevated plus maze were used to evaluate the anxiety-like behaviour of rats. Upon completion of the behavioural tests, concentrations of superoxide anion (O2·-), nitrite (NO2-, as an indicator of NO) and peroxynitrite (ONOO-) were determined in the hypothalamus of the animals. Obtained results show that ELF-EMF both induces anxiety-like behaviour and increases concentrations of O2·- and NO, whereas it did not effect on ONOO- concentration in hypothalamus of rats. In conclusion, the development of anxiety-like behaviour is mediated by oxidative stress and increased NO concentration in hypothalamus of rats exposed to ELF-EMF during 7 days.
Anxiety; Electromagnetic field; Hypothalamus; Nitric oxide; Oxidative stress
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