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Effect of 900-, 1800-, and 2100-MHz radiofrequency radiation on DNA and oxidative stress in brain
Electromagnetic Biology and Medicine ( IF 1.7 ) Pub Date : 2019-01-02 , DOI: 10.1080/15368378.2019.1567526
Mehmet Esref Alkis 1 , Hakki Murat Bilgin 2 , Veysi Akpolat 3 , Suleyman Dasdag 4 , Korkut Yegin 5 , Mehmet Cihan Yavas 6 , Mehmet Zulkuf Akdag 3
Affiliation  

ABSTRACT Ubiquitous and ever increasing use of mobile phones led to the growing concern about the effects of radiofrequency radiation (RFR) emitted by cell phones on biological systems. The aim of this study is to explore whether long-term RFR exposure at different frequencies affects DNA damage and oxidant-antioxidant parameters in the blood and brain tissue of rats. 28 male Sprague Dawley rats were randomly divided into four equal groups (n = 7). They were identified as Group 1: sham-control, Group 2: 900 MHz, Group 3: 1800 MHz, and Group 4: 2100 MHz. Experimental groups of rats were exposed to RFR 2 h/day for 6 months. The sham-control group of rats was subjected to the same experimental condition but generator was turned off. Specific absorption rates (SARs) at brain with 1 g average were calculated as 0.0845 W/kg, 0.04563 W/kg, and 0.03957, at 900 MHz, 1800 MHz, and 2100 MHz, respectively. Additionally, malondialdehyde (MDA), 8-hydroxydeoxyguanosine (8-OHdG), total antioxidant status (TAS), and total oxidant status (TOS) analyses were conducted in the brain tissue samples. Results of the study showed that DNA damage and oxidative stress indicators were found higher in the RFR exposure groups than in the sham-control group. In conclusion, 900-, 1800-, and 2100-MHz RFR emitted from mobile phones may cause oxidative damage, induce increase in lipid peroxidation, and increase oxidative DNA damage formation in the frontal lobe of the rat brain tissues. Furthermore, 2100-MHz RFR may cause formation of DNA single-strand breaks.

中文翻译:

900-、1800- 和 2100-MHz 射频辐射对大脑 DNA 和氧化应激的影响

摘要 手机无处不在且不断增加的使用导致人们越来越关注手机发出的射频辐射 (RFR) 对生物系统的影响。本研究的目的是探索不同频率的长期 RFR 暴露是否会影响大鼠血液和脑组织中的 DNA 损伤和氧化-抗氧化参数。28 只雄性 Sprague Dawley 大鼠随机分为四个相等的组 (n = 7)。它们被确定为第 1 组:假控制、第 2 组:900 MHz、第 3 组:1800 MHz 和第 4 组:2100 MHz。实验组大鼠暴露于 RFR 2 小时/天,持续 6 个月。假对照组大鼠进行相同的实验条件,但关闭发电机。平均 1 g 的大脑比吸收率 (SAR) 计算为 0.0845 W/kg、0.04563 W/kg 和 0.03957,分别为 900 MHz、1800 MHz 和 2100 MHz。此外,还对脑组织样本进行了丙二醛 (MDA)、8-羟基脱氧鸟苷 (8-OHdG)、总抗氧化状态 (TAS) 和总氧化状态 (TOS) 分析。研究结果表明,RFR 暴露组的 DNA 损伤和氧化应激指标高于假对照组。综上所述,手机发射的900、1800、2100MHz射频射频可能引起氧化损伤,诱导脂质过氧化增加,增加大鼠脑组织额叶DNA氧化损伤的形成。此外,2100-MHz RFR 可能会导致 DNA 单链断裂的形成。在脑组织样本中进行了总氧化状态 (TOS) 分析。研究结果表明,RFR 暴露组的 DNA 损伤和氧化应激指标高于假对照组。综上所述,手机发射的900、1800、2100MHz射频射频可能引起氧化损伤,诱导脂质过氧化增加,增加大鼠脑组织额叶DNA氧化损伤的形成。此外,2100-MHz RFR 可能会导致 DNA 单链断裂的形成。在脑组织样本中进行了总氧化状态 (TOS) 分析。研究结果表明,RFR 暴露组的 DNA 损伤和氧化应激指标高于假对照组。综上所述,手机发射的900、1800、2100MHz射频射频可能引起氧化损伤,诱导脂质过氧化增加,增加大鼠脑组织额叶DNA氧化损伤的形成。此外,2100-MHz RFR 可能会导致 DNA 单链断裂的形成。手机发出的2100MHz射频射频可能引起氧化损伤,诱导脂质过氧化增加,增加大鼠脑组织额叶DNA氧化损伤的形成。此外,2100-MHz RFR 可能会导致 DNA 单链断裂的形成。手机发出的2100MHz射频射频可能引起氧化损伤,诱导脂质过氧化增加,增加大鼠脑组织额叶DNA氧化损伤的形成。此外,2100-MHz RFR 可能会导致 DNA 单链断裂的形成。
更新日期:2019-01-02
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