大鼠纹状体边缘区和海马的功能联系研究

目的：研究纹状边缘区与具学习记忆功能的重要脑区－海马之间是否存在功能联系。方法：用神经系功能活动形态定位法，将低浓度的海人藻酸作为化学刺激剂注射于大鼠海马，用免疫组化法观察c-fos原癌基因在脑内的表达，结果：c-Fos在海马，杏仁核，终纹床核，大脑皮层等部位有强烈表达，在纹状体中，c-fos表达成条带状集中分布在边缘区，而在尾壳核和苍白球少有表达。结论：海马与纹状体边缘区存在密切的功能联系。

Functional connection between the marginal division and hippocampus in rats]

OBJECTIVE: To investigate the functional connection between the marginal division of the striatum and hippocampus, a brain region that play a vital role in learning and memory. METHODS: Morphological localization of functional activity of the nervous system was employed. Kainic acid (0.01%) was stereotaxically injected into the hippocampus as a chemical stimulus, and immunohistochemistry method was used to show the expression of c-Fos in rat brain. RESULTS: c-Fos was intensely expressed in the hippocampus, amygdaloid nucleus, the bed nucleus of the stria terminals and cerebral cortex; in the striatum, a stretch in the marginal division where c-Fos-positive nuclei congregated was observed, while c-Fos expression was scarcely detectable in the caudate putamen and globus pallidus. CONCLUSION: Functional connection exists between the marginal division and hippocampus in rats.