Marbey D A, Santos-Sacchi J
Exp Neurol. 1986 Oct;94(1):141-8. doi: 10.1016/0014-4886(86)90277-3.
Coronal sections through the eighth cranial nerve and medulla of the red-eared turtle were immunocytochemically stained for the astrocytic intermediate filament protein, glial fibrillary acidic protein. Reaction product appeared in the medial one-third of the eighth cranial nerve fibers as they penetrated the medulla. The remaining two-thirds of the nerve did not show any staining for glial fibrillary acidic protein. The lateral aspect of the nerve corresponds with the extracranial portion of the nerve. When the eighth cranial nerve of the turtle has been transected extracranially it still regenerates into the cochlear nuclei. Results of the present study indicate that the eighth cranial nerve was transected in earlier studies in a region devoid of astrocytes.
对红耳龟的第八对脑神经和延髓进行冠状切片，用免疫细胞化学方法对星形胶质细胞中间丝蛋白——胶质纤维酸性蛋白进行染色。当第八对脑神经纤维穿透延髓时，反应产物出现在神经纤维内侧三分之一处。神经其余的三分之二未显示胶质纤维酸性蛋白染色。神经的外侧部分与神经的颅外部分相对应。当龟的第八对脑神经在颅外被横断时，它仍能再生进入耳蜗核。本研究结果表明，在早期研究中，第八对脑神经是在没有星形胶质细胞的区域被横断的。
