{"title":"Evaluating the Effect of Jammer Radiation on Learning and Memory in Male Rats.","authors":"Mehrnaz Yazdanpanahi, Abasaleh Namazi, Manzar Banoo Shojaeifard, Samaneh Nematolahi, Saeedeh Pourahmad","doi":"10.31661/jbpe.v0i0.2001-1049","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>Previous studies shown that mobile phone can impairment of working memory in humans.</p><p><strong>Objective: </strong>In this study, the effect of radiofrequency radiation emitted from common mobile jammers have been studied on the learning and memory of rats.</p><p><strong>Material and methods: </strong>In this prospective study, 90 Sprague-Dawley rats, were divided into 9 groups (N=10): Control, Sham<sup>1st</sup> (exposed to a switched-off mobile jammer device at a distance of 50 or 100 cm/1 day, 2 hours), Sham<sup>2nd</sup> (similar to Sham<sup>1st</sup>, but for 14 days, 2 h/day), Experimental<sup>1st</sup> -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<sup>2nd</sup> (similar to experimental<sup>1st</sup>, 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.</p><p><strong>Results: </strong>Mean short-term memory was shorter in the experimental- 50 cm/1 day than control and sham- 50 cm/1 day (<i>P</i>=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 (<i>P</i>>0.05). Mean short-term memory was similar in experimental- 50 cm/14 days, control, and sham- 50 cm/14 days (<i>P</i>=0.087), but long-term learning memory was shorter in the radiated group (<i>P</i>=0.038). Mean short- and long-term were similar among experimental-100 cm/14 days, control or sham 100 cm/14 days (<i>P</i>>0.05).</p><p><strong>Conclusion: </strong>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.</p>","PeriodicalId":38035,"journal":{"name":"Journal of Biomedical Physics and Engineering","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/c1/8f/JBPE-13-29.PMC9923240.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Biomedical Physics and Engineering","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.31661/jbpe.v0i0.2001-1049","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Medicine","Score":null,"Total":0}
引用次数: 0
Abstract
Background: Previous studies shown that mobile phone can impairment of working memory in humans.
Objective: In this study, the effect of radiofrequency radiation emitted from common mobile jammers have been studied on the learning and memory of rats.
Material and methods: In this prospective study, 90 Sprague-Dawley rats, were divided into 9 groups (N=10): Control, Sham1st (exposed to a switched-off mobile jammer device at a distance of 50 or 100 cm/1 day, 2 hours), Sham2nd (similar to Sham1st, but for 14 days, 2 h/day), Experimental1st -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), Experimental2nd (similar to experimental1st, 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.
Results: Mean short-term memory was shorter in the experimental- 50 cm/1 day than control and sham- 50 cm/1 day (P=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 (P>0.05). Mean short-term memory was similar in experimental- 50 cm/14 days, control, and sham- 50 cm/14 days (P=0.087), but long-term learning memory was shorter in the radiated group (P=0.038). Mean short- and long-term were similar among experimental-100 cm/14 days, control or sham 100 cm/14 days (P>0.05).
Conclusion: 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.
期刊介绍:
The Journal of Biomedical Physics and Engineering (JBPE) is a bimonthly peer-reviewed English-language journal that publishes high-quality basic sciences and clinical research (experimental or theoretical) broadly concerned with the relationship of physics to medicine and engineering.