Ostrowska A, Sikora E, Mierzejewska-Krzyzowska B, Zimny R
Department of Morphological Sciences, Academy of Physical Education, Gorzów, Poland.
J Hirnforsch. 1993;34(1):9-23.
The projection from the lateral (dentate) cerebellar nucleus (NL) to the red nucleus in the rabbit was investigated using free horseradish peroxidase (HRP). Following injections of this tracer into the red nucleus (RN), the distribution patterns of retrogradely labeled cells were checked in the NL. The projection from the NL was found to extend rostrocaudally throughout the contralateral RN except for the predominant part of the rostral one-quarter and the caudalmost part of the RN, i.e. the regions described to receive projections exclusively from the interpositus nuclear complex (NI). On the other hand, the only region of the RN receiving projection exclusively from the NL appeared to be rostralmost parvocellular region of the RN (RN-PA). This study suggested that, in contrast to other species, the projection from the NL is not confined to the most rostrally localized RN-PA but is distributed throughout predominant part of the nucleus and to a great extent overlapped with projection from the NI. This overlapping projection pattern parallels the absence of clear differentiation between parvo- and magnocellular parts of the rabbit RN.
运用游离辣根过氧化物酶（HRP）对家兔小脑外侧（齿状）核（NL）至红核的投射进行了研究。将这种示踪剂注入红核（RN）后，检查了NL中逆行标记细胞的分布模式。结果发现，NL的投射在整个对侧RN的前后方向上延伸，但不包括RN最前端四分之一的主要部分和RN最尾端的部分，即据描述仅接受来自间位核复合体（NI）投射的区域。另一方面，RN中唯一仅接受NL投射的区域似乎是RN最前端的小细胞区（RN-PA）。这项研究表明，与其他物种不同，NL的投射并不局限于最前端定位的RN-PA，而是分布在该核的主要部分，并且在很大程度上与NI的投射重叠。这种重叠的投射模式与家兔RN小细胞和大细胞部分之间缺乏明显分化的情况相似。
