Elmas Onur, Comlekci Selcuk
Department of Physiology, Mugla Sitki Kocman University, Faculty of Medicine, Mugla, Turkey.
Department of Electronics and Communication Engineering, Suleyman Demirel University, Isparta, Turkey.
Bioelectromagnetics. 2015 Sep;36(6):420-9. doi: 10.1002/bem.21922. Epub 2015 May 14.
Although a large number of exposure studies have been carried out to investigate possible detrimental effects of a power-line frequency magnetic field (PF-MF; 50-60 Hz) on living organisms, there is no consensus in reported results. Recent research suggested that short-term exposure to a 50 Hz PF-MF can have a greater effect than long-term exposure. In our study, we aimed to investigate the possible effect of short-term 50 Hz PF-MF exposure on central, peripheral, and autonomic nervous systems through electroencephalogram (EEG), nerve conduction velocity (NCV), and heart rate variability (HRV) measurements. To that end, Wistar albino rats and sciatic nerves gathered from the rats were exposed to a 50 Hz, 0.3 mT MF, and changes on EEG, NCV, and HRV were investigated. According to data we gathered, MF frequency and magnetic flux density that we applied did not affect EEG, NCV, or HRV. The reason for conflicting results gathered from MF exposure studies may be that the nervous system can be affected by a specific MF frequency and magnetic flux density, but that different MF exposures do not affect it. Moreover, exposure duration to MF may also have influenced results.
尽管已经开展了大量暴露研究来调查工频磁场（PF-MF；50 - 60赫兹）对生物体可能产生的有害影响，但报告结果并未达成共识。最近的研究表明，短期暴露于50赫兹的PF-MF可能比长期暴露产生更大的影响。在我们的研究中，我们旨在通过脑电图（EEG）、神经传导速度（NCV）和心率变异性（HRV）测量来研究短期50赫兹PF-MF暴露对中枢、外周和自主神经系统可能产生的影响。为此，将Wistar白化大鼠以及从这些大鼠身上采集的坐骨神经暴露于50赫兹、0.3毫特斯拉的磁场中，并研究EEG、NCV和HRV的变化。根据我们收集的数据，我们施加的磁场频率和磁通密度并未影响EEG、NCV或HRV。从磁场暴露研究中收集到相互矛盾结果的原因可能是，神经系统可能会受到特定磁场频率和磁通密度的影响，但不同的磁场暴露并不会对其产生影响。此外，磁场暴露的持续时间也可能影响了结果。
