Yazdanpanahi Mehrnaz, Namazi Abasaleh, Shojaeifard Manzar Banoo, Nematolahi Samaneh, Pourahmad Saeedeh
Ionizing and Non-ionizing Radiation Protection Research Center, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
Department of Physiology, Fasa University of Medical Sciences, Fasa, Iran.
J Biomed Phys Eng. 2023 Feb 1;13(1):29-38. doi: 10.31661/jbpe.v0i0.2001-1049. eCollection 2023 Feb.
Previous studies shown that mobile phone can impairment of working memory in humans.
In this study, the effect of radiofrequency radiation emitted from common mobile jammers have been studied on the learning and memory of rats.
In this prospective study, 90 Sprague-Dawley rats, were divided into 9 groups (N=10): Control, Sham (exposed to a switched-off mobile jammer device at a distance of 50 or 100 cm/1 day, 2 hours), Sham (similar to Sham, but for 14 days, 2 h/day), Experimental -50 cm/1 day &100 cm/1 day (exposed to a switched-on device at a distance of 50 or 100 cm for 2 hours), Experimental (similar to experimental, but for 14 days, 2 h/day). The animals were tested for learning and memory the next day, by the shuttle box. The time that a rat took to enter the dark part was considered as memory.
Mean short-term memory was shorter in the experimental- 50 cm/1 day than control and sham- 50 cm/1 day (=0.034), long-term memory was similar. Mean short- and long-term memory were similar in the experimental- 100 cm/1 day, control and sham- 100 cm/1 day (>0.05). Mean short-term memory was similar in experimental- 50 cm/14 days, control, and sham- 50 cm/14 days (=0.087), but long-term learning memory was shorter in the radiated group (=0.038). Mean short- and long-term were similar among experimental-100 cm/14 days, control or sham 100 cm/14 days (>0.05).
Rats exposed to jammer device showed dysfunction in short- and long-term memory, which shown the unfavorable effect of jammer on memory and learning. Our results indicated that the distance from radiation source was more important than the duration.
先前的研究表明，手机会损害人类的工作记忆。
在本研究中，研究了普通移动信号干扰器发出的射频辐射对大鼠学习和记忆的影响。
在这项前瞻性研究中，将90只斯普拉格-道利大鼠分为9组（每组10只）：对照组、假手术组（在距离关闭的移动信号干扰器50或100厘米处暴露1天，每天2小时）、假手术组（与上述假手术组类似，但暴露14天，每天2小时）、实验组-50厘米/1天和100厘米/1天（在距离开启的设备50或100厘米处暴露2小时）、实验组（与上述实验组类似，但暴露14天，每天2小时）。次日，通过穿梭箱对动物的学习和记忆进行测试。将大鼠进入黑暗部分所需的时间视为记忆。
实验组-50厘米/1天的平均短期记忆比对照组和假手术组-50厘米/1天短（P=0.034），长期记忆相似。实验组-100厘米/1天、对照组和假手术组-100厘米/1天的平均短期和长期记忆相似（P>0.05）。实验组-50厘米/14天、对照组和假手术组-50厘米/14天的平均短期记忆相似（P=0.087），但辐射组的长期学习记忆较短（P=0.038）。实验组-100厘米/14天、对照组或假手术组-100厘米/14天的平均短期和长期记忆相似（P>0.05）。
暴露于信号干扰器的大鼠在短期和长期记忆方面表现出功能障碍，这表明信号干扰器对记忆和学习有不利影响。我们的结果表明，与辐射持续时间相比，与辐射源的距离更为重要。
