胼胝体发育过程中星形胶质细胞的超微结构

The ultrastructure of astroglia of the corpus callosum during ontogenesis.

作者信息

Kozik M B

出版信息

J Hirnforsch. 1976;17(3):277-87.

Abstract

An Ultrastructural study of morphological events occurring in the astroglia of the corpus callosum during postembryonal ontogenesis has been undertaken. The results of investigation have shown that in the rat corpus callosum, as early as 1 day postnatal, there may be distinguished two different types of glial cells, which during further maturation develop into protoplasmatic and fibrillar astrocytes. From the observations made it would appear that maturation of the astroglia is a continuous process and no sharp morphological borderlines can be drawn between the astrocytoblast and the astrocyte. However, it has been found that maturation of astrocytes in the rat corpus callosum is completed at the age of between 28 and 40 days postnatal.

摘要

对胚胎后期发育过程中胼胝体星形胶质细胞发生的形态学事件进行了超微结构研究。研究结果表明，在大鼠胼胝体中，早在出生后1天，就可以区分出两种不同类型的神经胶质细胞，它们在进一步成熟过程中发育成原浆性星形胶质细胞和纤维性星形胶质细胞。从观察结果来看，星形胶质细胞的成熟是一个连续的过程，在成星形细胞和成星形胶质细胞之间无法划出明显的形态学界限。然而，已经发现大鼠胼胝体中星形胶质细胞的成熟在出生后28至40天完成。