大鼠背外侧膝状核的上丘连合、顶盖前区及下丘脑传入纤维。白化与有色品系之间的比较。

Parabigeminal, pretectal and hypothalamic afferents to rat's dorsal lateral geniculate nucleus. Comparison between albino and pigmented strains.

作者信息

Turlejski K, Djavadian R L, Dreher B

机构信息

Department of Anatomy and Histology, University of Sydney, NSW, Australia.

出版信息

Neurosci Lett. 1993 Oct 1;160(2):225-31. doi: 10.1016/0304-3940(93)90419-l.

DOI:10.1016/0304-3940(93)90419-l

PMID:8247359

Abstract

In adult pigmented and albino rats different fluorescent dyes were injected into the dorsal lateral geniculate nuclei of opposite sides. Differences between the strains occur mainly in parabigemino-geniculate and pretecto-geniculate projections. Both the major contralateral and the minor ipsilateral parabigemino-geniculate projections in albinos were clearly smaller then those in pigmented rats. In pigmented rats but not in albinos the parabigemino-geniculate projections originated mainly from the region where the vertical meridian is represented and contained a small number of neurones projecting bilaterally. In each strain, a small number of retrogradely labelled neurones was found in the ipsilateral and contralateral lateral hypothalami.

摘要

在成年有色和白化大鼠中，将不同的荧光染料注入双侧的背外侧膝状核。品系之间的差异主要出现在双视束-膝状和顶盖前区-膝状投射中。白化大鼠中主要的对侧和次要的同侧双视束-膝状投射明显小于有色大鼠。在有色大鼠而非白化大鼠中，双视束-膝状投射主要起源于代表垂直子午线的区域，并且包含少量双侧投射的神经元。在每个品系中，在同侧和对侧下丘脑外侧均发现少量逆行标记的神经元。