Rombout J H, Rademakers L H, van Hees J P
Cell Tissue Res. 1979 Nov;203(1):9-23. doi: 10.1007/BF00234325.
The pancreatic endocrine cells of Barbus conchonius are concentrated in a large (principal) islet, located near the gall bladder, and in a number of smaller islets. Five types of endocrine cells can be distinguished in there pancreatic islets: B cells, A1 (or D cells), 2 types of A2 cells (A2r cells with round granules; and A2fl cells with flocculent granules) and a scarce 5th cell type. The hormones produced by B and A2fl cells are probably insulin and glucagon respectively. The A2r cell contains granules with the same diameter as the granules of the enteroendocrine type III cell of the gut. Both cell types may resemble the enteroglucagon-producing EG cell of mammals. The function of the A1 cells, which are frequently found without secretory granules, and of the 5th cell type, will be discussed. The pancreastic islets of B. conchonius are strongly innervated, which suggests thatpresence of a direct nervous control system. Some intermediate or mixed cells containing exocrine and endocrine A2r granules are found continguous with the principal islet. The origin of pancreatic endocrine cells is also the subject of discussion.
印度鲃的胰腺内分泌细胞集中在一个大的（主要的）胰岛中，该胰岛位于胆囊附近，还有一些较小的胰岛。在这些胰腺胰岛中可区分出五种类型的内分泌细胞：B细胞、A1（或D）细胞、两种类型的A2细胞（具有圆形颗粒的A2r细胞；以及具有絮状颗粒的A2fl细胞）和一种稀少的第五种细胞类型。B细胞和A2fl细胞产生的激素可能分别是胰岛素和胰高血糖素。A2r细胞含有的颗粒与肠道内分泌III型细胞的颗粒直径相同。这两种细胞类型可能类似于哺乳动物产生肠高血糖素的EG细胞。将讨论经常发现没有分泌颗粒的A1细胞和第五种细胞类型的功能。印度鲃的胰腺胰岛有丰富的神经支配，这表明存在直接的神经控制系统。在主胰岛附近发现一些含有外分泌和内分泌A2r颗粒的中间或混合细胞。胰腺内分泌细胞的起源也是讨论的主题。
