Department of Electronic Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong, China.
Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong, China.
Int J Environ Res Public Health. 2019 Mar 8;16(5):844. doi: 10.3390/ijerph16050844.
The static magnetic field (SMF) in human exposure has become a health risk concern, especially with respect to prolonged exposure. The International Commission on Non-Ionizing Radiation Protection (ICNIRP) has been considering cell or animal models to be adopted to estimate the possible human health impacts after such exposure. The medaka fish is a good animal model for human-related health assessment studies; this paper examines both the embryo development and behavioral responses in medaka fish in vivo to long-term SMF exposure at the mT level. SMF exposure was examined for the complete developmental period of embryos until hatched; the embryos were monitored and recorded every 24 h for different morphological abnormalities in their developmental stages. The behavioral response of adult fish was also examined by analyzing their swimming velocities and positioning as compared with that of the control group. It was observed that there were no impacts on embryo development under prolonged exposure up to about 100 mT while the swimming behavior of the adult fish under exposure was different to the control group-the swimming movement of the treated group was more static, with an average velocity of 24.6% less as observed over a 24-h duration.
静磁场（SMF）在人体暴露中已成为健康风险关注点，尤其是在长时间暴露的情况下。国际非电离辐射防护委员会（ICNIRP）一直在考虑采用细胞或动物模型来估计这种暴露后可能对人类健康产生的影响。青鳉鱼是一种很好的与人类健康评估相关的动物模型；本文研究了在 mT 水平下，长时间 SMF 暴露对青鳉鱼体内胚胎发育和行为反应的影响。SMF 暴露检查了胚胎的整个发育期，直到孵化；每隔 24 小时监测和记录胚胎在发育阶段的不同形态异常。还通过分析成年鱼的游泳速度和定位与对照组进行比较，研究了其行为反应。结果表明，在长达 100mT 的长时间暴露下，胚胎发育没有受到影响，而暴露下成年鱼的游泳行为与对照组不同——处理组的游动更静态，在 24 小时的观察期间，平均速度降低了 24.6%。
