刘梦雅,宋建波,高洁,袁慧,王永丽,王新钢,岳娟,秦秀军,李建国,闻建华.富H2水对电离辐射所致认知功能损伤的保护作用[J].中华放射医学与防护杂志,2018,38(6):414-418,465
富H2水对电离辐射所致认知功能损伤的保护作用
The protective effect of hydrogen-rich water on irradiation-induced cognitive dysfunction
投稿时间:2017-12-06  
DOI:10.3760/cma.j.issn.0254-5098.2018.06.003
中文关键词:  富H2  电离辐射  认知功能损伤  辐射防护
英文关键词:Hydrogen-rich water  Ionizing radiation  Cognitive dysfunction  Radiation protection
基金项目:
作者单位E-mail
刘梦雅 030006 太原, 中国辐射防护研究院 药物毒理与放射损伤药物山西省重点实验室  
宋建波 030032 太原, 山西大医院放疗科  
高洁 030006 太原, 中国辐射防护研究院 药物毒理与放射损伤药物山西省重点实验室  
袁慧 030006 太原, 中国辐射防护研究院 药物毒理与放射损伤药物山西省重点实验室  
王永丽 030006 太原, 中国辐射防护研究院 药物毒理与放射损伤药物山西省重点实验室  
王新钢 030006 太原, 中国辐射防护研究院 药物毒理与放射损伤药物山西省重点实验室  
岳娟 030006 太原, 中国辐射防护研究院 药物毒理与放射损伤药物山西省重点实验室  
秦秀军 030006 太原, 中国辐射防护研究院 药物毒理与放射损伤药物山西省重点实验室  
李建国 030006 太原, 中国辐射防护研究院 药物毒理与放射损伤药物山西省重点实验室  
闻建华 030006 太原, 中国辐射防护研究院 药物毒理与放射损伤药物山西省重点实验室 jianhua570621@163.com 
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中文摘要:
      目的 探讨富H2水对电离辐射所致大鼠认知功能损伤的保护作用。方法 将20只SD大鼠利用随机数表法分为对照组(C)、富H2水组(HRW)、单纯照射组(IR)和富H2水干预组(HRW+IR)4个组,每组5只。通过Morris水迷宫对各组大鼠空间记忆能力进行检测;对超氧化物歧化酶(SOD)、还原型谷胱甘肽(GSH)、丙二醛(MDA)、8-羟基脱氧鸟苷(8-OHdG)等氧化应激指标的变化进行检测;通过实时荧光定量PCR反应对凋亡相关基因表达情况进行研究。结果 大鼠逃避潜伏期4组间差异有统计学意义(F=6.003,P<0.05),4组间的平台象限游泳距离差异具有统计学意义(F=3.850,P<0.05)。其中,与IR组相比,HRW+IR组第3、4和5天的逃避潜伏期明显缩短(P<0.05),原平台象限游泳距离显著延长(P<0.05)。4组间的GSH、8-OHdG、MDA差异均具有统计学意义(F=6.450、5.033、4.113,P<0.05),与IR组相比,脑组织中GSH浓度显著升高(P<0.05),而MDA和8-OHdG浓度显著降低(P<0.05)。PCR结果显示,与IR组相比,HRW+IR组caspase-3、caspase-9基因表达水平均显著下降(t=2.956、3.087,P<0.05),bcl-2基因表达水平显著升高(t=-3.640,P<0.05),bax基因表达水平显著降低(t=5.246,P<0.05)。结论 富H2水可能通过中和氧羟自由基,减少电离辐射的氧化损伤作用,从而影响细胞凋亡过程进而对大脑产生保护作用。
英文摘要:
      Objective To investigate the protective effect of hydrogen-rich water on rat cognitive dysfunction induced by ionizing radiation. Methods A total of 20 SD rats were randomly divided into four groups with the ramdom number table method:control group (C), hydrogen-rich water group (HRW), irradiation group (IR) and hydrogen-rich water intervention group (HRW+IR), with 5 rats in each group. The spatial memory ability of rats was tested by a morris water maze. The expression of apoptosis-related genes was detected by real-time fluorescence quantitative PCR. The changes of glutathione (GSH), 8-hydroxydeoxy guanosine (8-OHdG) and malondialdehyde (MDA) and SOD were also measured. Results The escape latency (F=6.003, P<0.05) and the swimming distances (F=3.850, P<0.05) of rats in four different groups had statistically significant differences. Compared with the IR group, the escape latency of the HRW+IR group was significantly decreased at 3, 4, 5 d after irradiation (P<0.05), and the swimming distance of this group became much longer (P<0.05). The levels of GSH, 8-OHdG and MDA in these four groups had statistically significant differences (F=6.450, 5.033, 4.113, P<0.05). Compared with IR group, the concentration of GSH was increased (P<0.05), but MDA and 8-OHdG decreased (P<0.05) in the brain tissue of HRW+IR group, and the expressions of caspase-3, caspase-9 and bax genes were reduced (t=2.956,3.087, 5.246, P<0.05), while the expression of bcl-2 gene was enhanced (t=-3.640, P<0.05) in the HRW+IR group. Conclusions Hydrogen-rich water attenuates the oxidative damage of ionizing radiation by neutralizing oxyhydrogen free radicals and thus protects brain from radiation damage.
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