Wistar rats were exposed to a 916 MHz, 10 W/m2 mobile phone electromagnetic field for 6 hours a day 5 days a week. Average completion times in an eight-arm radial maze were longer in the exposed rats than control rats...Wistar rats were exposed to a 916 MHz, 10 W/m2 mobile phone electromagnetic field for 6 hours a day 5 days a week. Average completion times in an eight-arm radial maze were longer in the exposed rats than control rats after 4-5 weeks of exposure. Error rates in the exposed rats were greater than the control rats at 6 weeks. Hippocampal neurons from the exposed rats showed irregular firing patterns during the experiment, and they exhibited decreased spiking activity 6-9 weeks compared with that after 2 5 weeks of exposure. These results indicate that 916 MHz electromagnetic fields influence leaming and memory in rats during exposure, but long-term effects are not obvious.展开更多
Microwave ablation therapy has become an important method for tumor treatment in recent years.The temperature and the coagulation region need real-time noninvasive monitoring to ensure the safety and effectiveness dur...Microwave ablation therapy has become an important method for tumor treatment in recent years.The temperature and the coagulation region need real-time noninvasive monitoring to ensure the safety and effectiveness during the treatment.The authors reviewed the ultrasonic monitoring methods for tumor microwave ablation therapy both at home and abroad.In addition,the authors also prospected this technique in the future.展开更多
基金funded by the National Basic Research Program of China(973 Program),No. 2011CB503700,2011CB503702the National Natural Science Foundation of China,No.81071231,30670543the Research Program of Beijing Municipal Education Commission,No. KM200910005016,and No.JX015999201001
文摘Wistar rats were exposed to a 916 MHz, 10 W/m2 mobile phone electromagnetic field for 6 hours a day 5 days a week. Average completion times in an eight-arm radial maze were longer in the exposed rats than control rats after 4-5 weeks of exposure. Error rates in the exposed rats were greater than the control rats at 6 weeks. Hippocampal neurons from the exposed rats showed irregular firing patterns during the experiment, and they exhibited decreased spiking activity 6-9 weeks compared with that after 2 5 weeks of exposure. These results indicate that 916 MHz electromagnetic fields influence leaming and memory in rats during exposure, but long-term effects are not obvious.
基金supported by the National Natural Science Foundation of China(Grant No.30770547).
文摘Microwave ablation therapy has become an important method for tumor treatment in recent years.The temperature and the coagulation region need real-time noninvasive monitoring to ensure the safety and effectiveness during the treatment.The authors reviewed the ultrasonic monitoring methods for tumor microwave ablation therapy both at home and abroad.In addition,the authors also prospected this technique in the future.
