900 MHz脉冲微波近场辐射对实验大鼠学习记忆功能的影响

[目的]以900 MHz脉冲微波装置模拟移动电话信号对大鼠进行电磁辐射,分析受电磁辐射后的大鼠在学习记忆功能上受到的影响. [方法]选用上海产XJ-1070型高频脉冲信号发生器, 以1 500 μ W/cm2的功率密度对Wistar大鼠进行辐射,辐射时间分别为20 min/d;1 h/d;3 h/d.30 d后用Y型电迷宫测定大鼠学习记忆能力,随后处死取海马制成切片,电镜观察海马结构.[结果]实验组大鼠在学习记忆成绩中表现出训练次数和错误次数增多、形成条件反射次数减少,与对照组比较有显著差异(P<0.05),电镜观察发现海马结构部分神经元受损、突触小泡破裂,受影响程度与辐射时间呈正相关.[结论]900 MHz微波电磁辐射能导致大鼠的学习记忆功能下降.

Effects of 900 MHz Pulse Microwave Electromagnetic Radiation on Learning Capacity and Memory Abilities of Rats

To study the effects of electromagnetic radiation of 900MHz pulse microwave mocking mobile telephone on learning capacity and memory of rats. The Wistar rats were irradiated for 20 min/d,1 h/d or 3 h/d with XJ_1070 type high power density electromagnetic radiation.The test of learning capacity and memory in rats was undertaken on Y_type electric maze. The scores showed that the mistake numbers of training increased,the numbers of formation of conditioned reflex times reduced as compared with the control group(P<0.05),The nerve cells were partly suffered,and there was a significant correlation among the aforesaid effects and radiation time. [Conclusion] 900 MHz pulse microwave electromagnetic radiation can cause decrease in the learning capacity and memory.