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| 大鼠下丘脑视交叉上核突触数量的年龄性变化 | |
| 引用本文： | 薛庆善,候家骥. 大鼠下丘脑视交叉上核突触数量的年龄性变化[J]. 四川大学学报(医学版), 1992, 0(2) |
| 作者姓名： | 薛庆善 候家骥 |
| 作者单位： | 华西医科大学组织学与胚胎学教研室(薛庆善)，兰州医学院(候家骥) |
| 摘 要： | 用电镜定量方法观测不同年龄大鼠下丘脑视交叉上核(SCN)的突触数量,发现SCN中最主要突触群体(轴树突触)及突触总数目均随着年龄增加而下降。成年组、老年组突触数目与青年组相比,差异均有显著性(P<0.05)。该结果提示SCN随着年龄的增加可能有功能下降。 |
| 关 键 词： | 突触 视交叉上核 大鼠 年龄 |
Age--related Change of Synaptic Number in the Suprachiasmatic Nucleus of the Rat Hypothalamus |
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| Xue Qingshan,Hou Jiaji. Age--related Change of Synaptic Number in the Suprachiasmatic Nucleus of the Rat Hypothalamus[J]. Journal of Sichuan University. Medical science edition, 1992, 0(2) | |
| Authors: | Xue Qingshan Hou Jiaji |
| Affiliation: | Xue Qingshan;Hou Jiaji Department of Histology and Embryology Lanzhou Medical College |
| Abstract: | Numerical changes of thesynapses in the hypothalamic suprachias-matic nuclei(SCN)of rats at different ageswere investigated with electron microscope.The population of the major SCN synapses.formed with dendrite and total number ofsynapses were found to be reduced withadvancing age. Compared with the younganimal group, the synaptic number wasstatistically different from that in the adultor senescent group. As a result of thesechanges, the function of SCN might declinewith aging. |
| Keywords: | Synapse Suprachiasmatic nucleus Rats Age |
| 本文献已被 CNKI 等数据库收录！ | |