Rizzotti M, Domeneghini C
Riv Istochim Norm Patol. 1976;20(4):253-63.
Based on morphological and histochemical data, the Authors describe the distribution of "EC" (5-HT-producing) and of the other endocrine cells of the "APUD" series (polypeptide hormone-producing) in the gastro intestinal tract of weaned and unweaned 3-4 month old calves. The results demonstrate that: -- no difference concerning the different diet can be correlated; -- no endocrine cell is present in the vorestomachs; -- the "EC" cells in the abomasum prevail in the fundus glands; they are demonstrable also in every tract of the intestine and are more numerous in the duodenum and in the rectum; -- within the "APUD" series four cellular types are demonstrable in the abomasum; two are in the cardias, one in the fundus and one in the pylorus glands; the last one probably corresponds to the gastrin-producing "G" cells. -- In the small intestine, particularly numerous in the duodenum, a probably heterogeneous family of endocrine cells is present, while in the coecum, in the colon and, above all, in the rectum, cells probably corresponding to "EG" cells are identifiable. These results are compared to those previously obtained in the adult Cattle: remarkable differences are demonstrable only within "APUD" cells of abomasum.
基于形态学和组织化学数据，作者描述了3 - 4月龄断奶和未断奶犊牛胃肠道中“EC”细胞（产生5 - 羟色胺）及“APUD”系列其他内分泌细胞（产生多肽激素）的分布情况。结果表明：——不同饮食之间未发现相关差异；——前胃中不存在内分泌细胞；——皱胃中的“EC”细胞在胃底腺中占优势；在肠道各段也可检测到，十二指肠和直肠中数量更多；——在“APUD”系列中，皱胃可检测到四种细胞类型；贲门有两种，胃底和幽门腺各有一种；最后一种可能对应产生胃泌素的“G”细胞。——在小肠中，尤其是十二指肠中，存在一个可能异质性的内分泌细胞群体，而在盲肠、结肠，尤其是直肠中，可识别出可能对应“EG”细胞的细胞。这些结果与之前在成年牛中获得的结果进行了比较：仅在皱胃的“APUD”细胞中发现了显著差异。
