Day T A, Sibbald J R
Department of Physiology, University of Otago Medical School, Dunedin, New Zealand.
Brain Res. 1988 Jun 28;454(1-2):387-92. doi: 10.1016/0006-8993(88)90843-8.
To determine whether the supraoptic nucleus (SON) receives a direct projection from catecholamine cells of the nucleus tractus solitarii (NTS), retrograde transport of rhodamine-tagged latex microspheres was combined with a procedure for the fluorescence histochemical visualization of catecholamines. SON tracer injections, made via transpharyngeal approach, retrogradely labelled cells at all levels of NTS, although the majority were located caudal to obex with an ipsilateral predominance. Approximately half of these cells were also identified as catecholaminergic; the relatively caudal level in the dorsomedial medulla of most of these cells suggests that they probably correspond to the A2 catecholamine cell group.
为了确定视上核（SON）是否接受来自孤束核（NTS）儿茶酚胺能细胞的直接投射，将罗丹明标记的乳胶微球逆行运输与儿茶酚胺荧光组织化学可视化程序相结合。通过经咽途径对视上核进行示踪剂注射，逆行标记了孤束核各级的细胞，尽管大多数细胞位于闩尾侧且以同侧为主。这些细胞中约一半也被鉴定为儿茶酚胺能细胞；这些细胞大多数位于延髓背内侧相对靠尾侧的水平，这表明它们可能对应于A2儿茶酚胺能细胞群。
