Kumari K, Capstick M, Cassara A M, Herrala M, Koivisto H, Naarala J, Tanila H, Viluksela M, Juutilainen J
Department of Environmental and Biological Sciences, University of Eastern Finland, P.O. BOX 1627, FIN-70211, Kuopio, Finland.
IT'IS Foundation, Zurich, Switzerland.
Environ Res. 2017 Aug;157:64-70. doi: 10.1016/j.envres.2017.05.014. Epub 2017 May 17.
Human exposure to intermediate frequency (IF) fields is increasing due to new applications such as electronic article surveillance systems, wireless power transfer and induction heating cookers. However, limited data is available on effects of IF magnetic fields (MF) on male fertility function. This study was conducted to assess possible effects on fertility indicators from exposure to IF MF. Male C57BL/6J mice were exposed continuously for 5 weeks to 7.5kHz MF at 12 and 120μT. Sperm cells from cauda epididymis were analysed for motility, total sperm counts, and head abnormalities. Motile sperm cells were classified as progressive or non-progressive. Testicular spermatid heads were counted as well. The body weight development and reproductive tissue weights were not affected. No exposure-related differences were observed in sperm counts or sperm head abnormalities. Proportion of non-motile cells was significantly decreased in the 120µT group, and a corresponding increase was seen in the percentage of motile cells (significant in non-progressive motile cells). In conclusion, no adverse effects on fertility indicators were observed. Increased sperm motility is an interesting finding that needs to be confirmed in further studies.
由于电子商品防盗系统、无线电力传输和感应加热炊具等新应用，人类对中频（IF）场的暴露正在增加。然而，关于中频磁场（MF）对男性生育功能影响的数据有限。本研究旨在评估暴露于中频MF对生育指标的可能影响。将雄性C57BL/6J小鼠连续5周暴露于12和120μT的7.5kHz MF。对附睾尾部的精子细胞进行活力、总精子计数和头部异常分析。活动精子细胞分为进行性或非进行性。还对睾丸精子细胞头进行了计数。体重发育和生殖组织重量未受影响。在精子计数或精子头部异常方面未观察到与暴露相关的差异。在120µT组中，不活动细胞的比例显著降低，活动细胞的百分比相应增加（在非进行性活动细胞中显著）。总之，未观察到对生育指标的不利影响。精子活力增加是一个有趣的发现，需要在进一步研究中得到证实。
