胎儿视皮质神经元发育的立体学定量分析  

Stereological quantitative analysis on development of the visual cortex neurons in human fetus

作　　者：纳冬梅 王荣华[2] 孙强 安中平 张宝东[2] 宋铁军[2] 

机构地区：[1]包头市包钢职工医院神经内科,内蒙古包头014000 [2]哈尔滨医科大学组胚教研室,黑龙江哈尔滨150086

出　　处：《哈尔滨医科大学学报》1999年第6期427-429,共3页Journal of Harbin Medical University

摘　　要：本实验取材自１４ 例流产的正常胎儿，胎龄１２ ～４０ 周，对其视皮质神经元进行立体定量分析。结果表明，视皮质神经元发育过程中核质比例逐渐减小；细胞核体密度逐渐减小，核仁与胞质的体密度呈上升趋势；细胞质内线粒体、粗面内质网、核糖体的体密度呈明显上升趋势，而滑面内质网、高尔基复合体及溶酶体的体密度均有不同程度的上升。With the electron microscope,we observed neurons in visual cortex (from 14 normal fetus whose gestational ages were 12～14 weeks) and then analysed them by stereology method.The results showed that in development of neurons in visual cortex,nucleoplasmic ratio decreased with gestational age;the volume density of nucleus decreased with development,and the volume density of nucleolus and cytoplasm increased;the volume density of mitochondria,rough endoplasmic reticulum and ribosome tended upwards obviously,and the volume density of smooth endoplasmic reticulum,Golgi complex and lysosome tended upwards to various degrees,too.

关 键 词：视皮质神经元发育 体视学 胎儿 

分 类 号：R714.51[医药卫生—妇产科学] R329.1[医药卫生—临床医学]