Tarsaei Mahvash, Peyrovan Zeinab Sadat, Mahdavi Seyed Mohammad, Modarresi Chahardehi Amir, Vafaee Reza, Haidari Mohammad Hosain
Department of Bioscience and Biotechnology, Malek Ashtar University of Technology (MUT), Tehran, Iran.
Cognitive Neuroscience Research Center, AJA University of Medical Sciences, Tehran, Iran.
J Lasers Med Sci. 2022 Dec 4;13:e56. doi: 10.34172/jlms.2022.56. eCollection 2022.
The effects of short-term and long-term exposures to 2.45 GHz radiofrequency electromagnetic radiation (RF-EMR) on anxiety-like behavior, corticosterone level, and gene expression were investigated. The goal of this study was to explore the effect of electromagnetic fields of 2.45 GHz on clinical signs such as body weight and anxiety-like behavior, including the elevated plus maze test and open-field test, and also on messenger RNA (mRNA) expression of Bax (Bcl2-associated x) and Bcl-2 (B-cell lymphoma 2) genes on the cognitive memory functions in an animal model of rats. The animals were classified into eight groups, sham groups and exposed groups for short-term and long-term exposures to the same dose of RF-EMR for one hour daily. The Wi-Fi equipment in the sham control group was not turned on during the experiment. Both genes were further confirmed by reverse transcriptase-polymerase chain reaction (RT-PCR). The semi-quantitative PCR method of electromagnetic fields in the 2.45 GHz range impacted the expression of Bax and Bcl-2 genes in the rat's memory. The present study exhibited that short-term radiation could decrease the percentage of entry into the open arm and the percentage of time spent, while there were no substantial impacts on the long-term radiation effect. Our data support the hypothesis that short-term exposure worked as a systemic stressor, raising plasma corticosterone and changing glucocorticoid receptor expression in the hippocampus. Additional research on this specific frequency and amount of radiation is required to discover strategies for protecting the nervous system from the detrimental effects of RF-EMR radiation.
研究了短期和长期暴露于2.45 GHz射频电磁辐射(RF-EMR)对焦虑样行为、皮质酮水平和基因表达的影响。本研究的目的是探讨2.45 GHz电磁场对体重和焦虑样行为等临床体征的影响,包括高架十字迷宫试验和旷场试验,以及对大鼠动物模型认知记忆功能中Bax(Bcl2相关X)和Bcl-2(B细胞淋巴瘤2)基因信使核糖核酸(mRNA)表达的影响。将动物分为八组,即假手术组和暴露组,分别进行短期和长期暴露,每天暴露于相同剂量的RF-EMR 1小时。假手术对照组的Wi-Fi设备在实验期间未开启。通过逆转录聚合酶链反应(RT-PCR)进一步确认这两个基因。2.45 GHz范围内电磁场的半定量PCR方法影响大鼠记忆中Bax和Bcl-2基因的表达。本研究表明,短期辐射可降低进入开放臂的百分比和停留时间百分比,而对长期辐射效应没有实质性影响。我们的数据支持这样的假设,即短期暴露作为一种全身性应激源,会升高血浆皮质酮并改变海马体中糖皮质激素受体的表达。需要对这种特定频率和辐射量进行更多研究,以找到保护神经系统免受RF-EMR辐射有害影响的策略。