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代谢型谷氨酸受体7亚型在大鼠中枢神经系统内的分布 |
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李金莲 丁玉强 李继硕 大石 仁 重本隆一 水野 升
【摘要】 目的 为研究代谢型谷氨酸受体在中枢神经系统内的功能作用提供形态学依据。 方法 用免疫组织化学技术,在光学显微镜下观察代谢型谷氨酸受体7亚型(mGluR7)在大鼠脑和脊髓内的分布。 结果 mGluR7阳性浓染的神经元胞体和纤维主要密集分布于Calleja岛、海马、齿状回、内侧缰核、橄榄顶盖前核、上丘带状层、三叉神经尾侧亚核浅层、三叉旁核、中缝大核、中缝苍白核、蓝斑、脊髓背角浅层和外侧脊核。呈中等强度染色的神经元胞体和纤维见于嗅结节、前嗅核、梨状皮质、隔伞核、终纹床核、下丘脑外侧区、下丘脑室旁核、乳头体上核、乳头体内、外核、丘脑大部分核团、内外侧膝状体、视束核、红核、黑质、脚间核、桥核、臂旁外侧核、上橄榄复合体、斜方体核、三叉神经运动核、面神经核、疑核、耳蜗核、前庭核簇、楔束外核、孤束核、舌下神经核、舌下神经前置核、中缝隐核、延髓网状结构、小脑蒲肯野细胞层、脊髓中间带外侧核、Onuf核和中央管周围灰质。此外,在许多脑区还可见淡染的和散在分布的阳性胞体和纤维。 结论 mGluR7广泛分布于大鼠中枢神经系统内,提示它在谷氨酸引起的兴奋性信息传递中可能起着重要作用。 【关键词】 代谢型谷氨酸受体7亚型 谷氨酸 脑 脊髓 免疫细胞化学 大鼠
IMMUNOHISTOCHEMICAL LOCALIZATION OF A METABOTROPIC GLUTAMATERECEPTOR,mGLUR7,IN THE CENTRAL NERVOUS SYSTEM OF THE RAT
Li Jinlian△, Ding Yuqiang, Li Jishuo, Ohishi Hitoshi*, Shigemoto Ryuichi*,Mizuno Noboru*
(Department of Anatomy and K.K.Leung Brain Research Center,The Fourth Military Medical University,Xi′an;*Department of Morphological Brain Science, Faculty of Medicine,Kyoto University,Kyoto,Japan)
【Abstract】 Objective In order to study possible functions of the metabotropic glutamate receptors in the central nervous system,the localization of metabotropic glutamate receptor 7 subtype in the brain and spinal cord of the rat was examined.Methods Immunohistochemical staining techniques were used,and immunostained sections were observed under a light microscopy.Results Many neuronal cell bodies and fibers with dense mGluR7-like immunoreactivity(-LI) were intensely distributed in the island of Calleja,hippocampus,dentate gyrus,medial habenular nucleus,olivary pretectal nucleus,zonal layer of the superior colliculus,superficial layers of the caudal spinal trigeminal nucleus,paratrigeminal nucleus,raphe magnus nucleus,raphe nucleus pallidus,locus coeruleus,superficial layers and lateral spinal nucleus of the spinal cord.Neuronal cell bodies and fibers with moderate mGluR7-LI were see[1] [2] [3] 下一页 上一个医学论文: 大鼠大脑运动皮质与脑干面口部运动前神经元的突触联系 下一个医学论文: 贵州省1994 1998年人口死因及潜在减寿年数分析
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