Niimi K, Kusunose M, Ono K, Yanagihara M
Third Department of Anatomy, Okayama University Medical School, Japan.
J Hirnforsch. 1990;31(1):107-22.
Brainstem afferents to the intralaminar thalamic nuclei of the cat have been studied by retrograde axonal transport of horseradish peroxidase (HRP) or wheat germ agglutinin conjugated to HRP (WGA-HRP). Injections of HRP or WGA-HRP into the lateral central and paracentral nuclei led to labeling of cells in various diencephalic structures of the injected side. Some cells were labeled in the intralaminar and medial pulvinar nuclei. A large number of labeled cells were detected in the thalamic reticular and ventral lateral geniculate nuclei. The zona incerta and field of Forel contained a few labeled cells. Occasional labeled cells were seen in the dorsomedial, ventromedial, posterior and lateral hypothalamic nuclei. Labeling of cells in the more caudal brainstem structures was found bilaterally, mostly with ipsilateral predominance. Some labeled cells were detected in the pretectal nuclei, the periaductal gray and the pars reticulata of the substantia nigra as well. The nuclei of Darkschewitsch and Cajal contained occasional labeled cells. Numerous cells were labeled in the superior colliculus, mainly in layers 3 and 4. A number of labeled cells were distributed in almost the entire extent of the brainstem reticular formation. It should be mentioned that the gigantocellular reticular nucleus contained labeled cells bilaterally with contralateral predominance. Very few labeled cells were encountered in the ipsilateral dorsal tegmental and parabrachial nuclei. A few cells were labeled in the vestibular nuclei and nucleus prepositus hypoglossi bilaterally. Some labeled cells were detected mainly contralaterally in three cerebellar nuclei; the fastigial, the interposed and the dentate. Injections of WGA-HRP into the medial central nucleus showed a different pattern of labeling. It is noteworthy that no labeled cells were found in the dorsal thalamus, the hypothalamus (except for the lateral mamillary nucleus), the superior colliculus or the cerebellar nuclei.
利用辣根过氧化物酶（HRP）或与HRP结合的麦胚凝集素（WGA-HRP）的逆行轴突运输技术，对猫丘脑板内核的脑干传入纤维进行了研究。将HRP或WGA-HRP注入外侧中央核和中央旁核后，导致注射侧不同间脑结构中的细胞被标记。在板内核和内侧丘脑枕核中有一些细胞被标记。在丘脑网状核和外侧膝状体腹侧核中检测到大量被标记的细胞。未定带和Forel区含有少量被标记的细胞。在背内侧、腹内侧、下丘脑后核和外侧核中偶尔可见被标记的细胞。在更靠尾侧的脑干结构中，双侧均发现有细胞被标记，多数以同侧为主。在顶盖前核、导水管周围灰质和黑质网状部也检测到一些被标记的细胞。Darkschewitsch核和Cajal核中偶尔有被标记的细胞。上丘中有大量细胞被标记，主要在第3层和第4层。许多被标记的细胞分布在几乎整个脑干网状结构中。应当指出的是，巨细胞网状核中双侧均有被标记的细胞，以对侧为主。在同侧背侧被盖核和臂旁核中遇到的被标记细胞很少。双侧前庭核和舌下前置核中有少数细胞被标记。主要在对侧的三个小脑核，即顶核、间位核和齿状核中检测到一些被标记的细胞。将WGA-HRP注入内侧中央核显示出不同的标记模式。值得注意的是，在背侧丘脑、下丘脑（外侧乳头体核除外）、上丘或小脑核中未发现被标记的细胞。
