神经肽S对睡眠觉醒的调节

被引:11
作者
侯一平 [1 ]
王灿 [1 ]
谢宇平 [2 ]
解俊樊 [1 ]
惠培林 [2 ]
洪建平 [1 ]
邵玉峰 [1 ]
机构
[1] 兰州大学医学院基础医学院神经科学研究所,人体解剖与组织胚胎研究所,甘肃省新药临床前重点实验室
[2] 甘肃省人民医院鼾症(睡眠)科
关键词
神经肽S; 神经肽S受体; 睡眠觉醒; 睡眠障碍; 精神障碍;
D O I
10.13885/j.issn.1000-2812.2014.04.015
中图分类号
R338 [神经生理学];
学科分类号
100115 [医学神经生物学];
摘要
新发现神经肽S(NPS)及其受体(NPSR)构成一新的内源性神经调节系统,NPS-NPSR系统被认为是中枢新的觉醒系统参与睡眠觉醒周期的生理与病理过程。近期研究证明侧脑室注射NPS引起大鼠脑电高频(14.5~60 Hz)活动增强为特征的觉醒时间增加,同时抑制脑电δ波和θ波为特征的慢波睡眠(SWS)和异相睡眠或称为快动眼睡眠(PS/REMS);NPSR拮抗剂[D-Cys(tBu)5]NPS引起大鼠觉醒减少,SWS增加,而不影响PS/REMS。NPSR rs324981单核苷酸多态性和Asn/Ile 107 NPSR多态性与人类的生理性睡眠调节密切相关。机制研究揭示下丘脑结节乳头体核(TMN)91.5%组胺能神经元表达NPSR,TMN注射0.1 nmo L NPS引起大鼠觉醒时间,比侧脑室注射1 nmo L NPS引起大鼠觉醒时间显著延长,该作用可分别被NPSR、组胺受体H1R和组胺受体H2R拮抗剂所拮抗,提示NPS神经元投射TMN经NPSR介导激活组胺能神经元是NPS-NPSR调节睡眠觉醒的重要通路。另外,证据表明NPS抗焦虑与抑郁引起睡眠紊乱。为此,揭示NPS能神经元投射途径、作用靶点与突触后神经元作用模式,发现NPSR高效激动剂及拮抗剂将成为今后工作重点。
引用
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页码:79 / 85+92 +92
页数:8
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