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一氧化氮对大鼠睡眠-觉醒周期的调节作用
引用本文:李兵,张瑾,钟明奎,章功良.一氧化氮对大鼠睡眠-觉醒周期的调节作用[J].解放军药学学报,2008,24(3):226-228.
作者姓名:李兵  张瑾  钟明奎  章功良
作者单位:1. 南京军区空军司令部机关医院,药剂科,江苏,南京,210018
2. 安徽医科大学生理教研室,睡眠障碍研究室,安徽,合肥,230032
基金项目:安徽医科大学校科研和教改项目 , 国家自然科学基金 , 安徽省教育厅高等学校青年教师科研重点基金
摘    要:目的研究丘脑网状核(Reticular thalamic nucleusRT)内一氧化氮(NO)能神经元参与大鼠睡眠调节的可能机制。方法采用脑立体定位、核团埋管及微量注射和多导睡眠描记技术(PSG)。结果RT双侧分别微量注射一氧化氮的供体硝普钠(SNP,0.2μg,浓度是0.2mg·L^-1)后引起觉醒增多;注射可溶性鸟苷酸环化酶(soluble guanylate cyclase,sGC)抑制剂亚甲蓝(MB,1.0μg,浓度是1.0mg·L^-1)后睡眠增加,且SNP促觉醒的作用可被MB所阻断。结论RT参与大鼠睡眠一觉醒周期的调节,RT中的NO能神经元可能有促觉醒作用,可能与NO激活sGC而升高环磷酸鸟苷(cyclic guanosine monophosphate,cGMP)水平有关。

关 键 词:一氧化氮  硝普钠  亚甲蓝  睡眠  丘脑网状核
文章编号:1008-9926(2008)03-0226-03
修稿时间:2007年7月20日

Effeft of Nitric Oxide on Sleep-Wakefulness Cycle of Rats
LI Bing,ZHANG Jin,ZHANG Ming-Kui,ZHANG Gong-Liang.Effeft of Nitric Oxide on Sleep-Wakefulness Cycle of Rats[J].Pharmaceutical Journal of Chinese People's Liberation Army,2008,24(3):226-228.
Authors:LI Bing  ZHANG Jin  ZHANG Ming-Kui  ZHANG Gong-Liang
Institution:LI Bing, ZHANG JiM, ZHANG Ming-Kui, ZHANG Gong-Liang (2Dept of Pharmacy, Afficiated Hospital of Airforce of Nanjing Command,Nanjing 210018,Jiangsu China;3Dept of Physiology, Anhui Medical University, Hefei 230032, Anhui China)
Abstract:Aim To study the mechanism of nitric oxide neurons in reticular thalamic nucleus in sleep regulation in rats. Methods Brain stereotaxic technigne,microinjection,polysomnography(PSG) and nucleus spile were used. Results Sodium nitrioprusside ( SNP,0. 2μg), the donor of nitric oxide (NO) , enhanced wakefulness. Methylene blue (MB, 1.0μg), an inhibitor of soluble guanylate cyclase (sGC), increased the sleep time of slow wave sleep (SWS) and total sleep time( TST), and can block the wake-promoting effect of SNP. Conclusion Reticular thalamic nucleus (RT) plays an important role in the sleep-waking cycle in rats. Nitric oxide neurons in reticular thalamic nucleus can promote wake, which was mediated by activation of sGC and increase of cGMP concentration.
Keywords:MeSH nitric oxide  Sodium nitrioprusside  Methylene blue  Sleep  Reticular thalamic nucleus
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