Maeda S, Ichikawa H, Wakisaka S, Akai M, Inoki R
Department of Pharmacology, Osaka University Faculty of Dentistry, Suita, Japan.
Acta Anat (Basel). 1988;133(2):127-9. doi: 10.1159/000146628.
The occurrence of peptidergic cellular elements in the feline vagus nerve was examined by an immunohistochemical method. Some methionine-enkephalin-like immunoreactive cells were present around a few capillaries within the vagus nerve, whereas substance-P- and vasoactive-intestinal-polypeptide-like immunoreactive cells were not observed. The methionine-enkephalin-like immunoreactive cells had an oval shape and their diameter was 7-10 micron. These cells appeared to be in contact with the pericyte of the capillaries. Though the physiological function of these enkephalin-positive cells is unclear, our findings suggest that they can act as endocrine cells and release methionine-enkephalin into the capillaries.
采用免疫组织化学方法检测猫迷走神经中肽能细胞成分的存在情况。在迷走神经内的一些毛细血管周围存在一些甲硫氨酸脑啡肽样免疫反应性细胞，而未观察到P物质和血管活性肠多肽样免疫反应性细胞。甲硫氨酸脑啡肽样免疫反应性细胞呈椭圆形，直径为7 - 10微米。这些细胞似乎与毛细血管的周细胞相接触。尽管这些脑啡肽阳性细胞的生理功能尚不清楚，但我们的研究结果表明它们可作为内分泌细胞并将甲硫氨酸脑啡肽释放到毛细血管中。
