人胚胎小脑突触体素及NOS阳性细胞的观察

被引:5
作者
钱雪松
李陈莉
侯广棋
曹玉纯
孙万彬
仝宇红
机构
[1] 河北医科大学基础医学院解剖学教研室!石家庄
[2] 石家庄市第一人
关键词
突触膜糖蛋白/代谢; 一氧化氮/代谢; 小脑; 人胚;
D O I
暂无
中图分类号
R321.5 [人体部位胚胎学];
学科分类号
摘要
目的 研究人体胚胎时期小脑中突触体素及NOS阳性细胞的组织学变化。方法 用免疫组织化学、组织化学技术,对4 ~9 个月胎儿小脑皮质突触体素和NOS阳性细胞进行了观察。结果 突触体素在小脑不同层中的分布各不相同,外颗粒层4 ~9 个月均无阳性颗粒出现。4 个月时除外颗粒层各层免疫反应颗粒均很少,5 个月时中间层的染色较各层深,6 个月时分子层的颗粒沿Bergmann 纤维方向分布,7 个月时分子层染色颗粒呈明显的网状分布,中间层、内颗粒层染色颗粒更密集,较6 个月时染色深;8 个月时蒲肯野细胞的轮廓明显可辨,阳性颗粒勾勒出蒲肯野细胞主树突轮廓。4~6 个月胎儿小脑皮质中均未见NOS阳性细胞,但可见染色的血管网;7 ~8个月小脑皮质中可见密集的NOS阳性细胞分布,但染色很浅,细胞界限不清。结论 突触体素的数量可以反映出突触发育的程度,在小脑中突触体素的数量随神经细胞的发育成熟而增多,并且在8 ~9 个月间分子层中增多最明显
引用
收藏
页码:325 / 328
页数:4
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