| 哺乳动物昼夜节律调节的神经基础——昼夜光感受器 |
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| 引用本文： | 谌小维,胡志安.哺乳动物昼夜节律调节的神经基础——昼夜光感受器[J].生物化学与生物物理进展,2003,30(5):694-697. |
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| 作者姓名： | 谌小维 胡志安 |
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| 作者单位： | 第三军医大学神经生物学教研室,重庆,400038 |
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| 基金项目： | 国家自然科学基金资助项目 ( 3 0 2 70 44 3 )~~ |
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| 摘 要： | 哺乳动物昼夜光感受器为一组具有直接感光功能的特殊视网膜神经节细胞 ,其基本感光色素为黑视素 .昼夜光感受器具有直接、广谱和稳定感受昼夜光变化的功能特点 .昼夜光感受器的功能是通过导引作用 ,使下丘脑视交叉上核内的昼夜节律活动与外界明 暗周期变化同步
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| 关 键 词： | 昼夜节律 导引作用 黑视素 隐花色素 视网膜节细胞 |
| 收稿时间： | 2003/5/19 0:00:00 |
| 修稿时间： | 7/9/2003 12:00:00 AM |
Neurophysiological Basis of The Regulation of Circadian Rhythms in Mammals:Circadian Photoreceptor |
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| CHEN Xiao-Wei and HU Zhi-An.Neurophysiological Basis of The Regulation of Circadian Rhythms in Mammals:Circadian Photoreceptor[J].Progress In Biochemistry and Biophysics,2003,30(5):694-697. |
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| Authors: | CHEN Xiao-Wei and HU Zhi-An |
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| Institution: | Department of Neurobiology, Third Military Medical University, Chongqing 400038, China;Department of Neurobiology, Third Military Medical University, Chongqing 400038, China |
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| Abstract: | Circadian photoreceptor in mammals is a kind of specific retinal ganglion cells which are light sensitive. Melanopsin has been proposed as an important photoreceptive molecule for the mammalian circadian system. Circadian photoreceptors are functionally characterized by the direct sensitivity to light with broad spectrum and the relatively high stability. The major circadian pacemaker in the hypothalamic suprachiasmatic nucleus is entrained to the light/dark cycles from the outside world by circadian photoreceptors. |
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| Keywords: | circadian rhythms entrainment melanopsin cryptochrome retinal ganglion cells |
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