[Ultrastructure of endocrine cells in the dog pancreas]

Autor: A A, Puzyrev, V F, Ivanova, S V, Kostiukevich
Rok vydání: 2007
Předmět:
Zdroj: Morfologiia (Saint Petersburg, Russia). 130(6)
ISSN: 1026-3543
Popis: Electron microscopy was used to study the cellular composition of dog pancreatic islets. Four types of endocrine cells were detected: A, B, D and PP. B cells were the predominant population within the islets. Differences in cellular organization of A and B cells were shown to be caused by the phases of the process of hormone synthesis. Insulin-containing secretory granules in B cells had a crystalloid structure, similar to that in B granules of insulin-containing cells in human pancreatic islets. In the exocrine portion of the pancreas, acino-insular cells were detected that simultaneously contained B granules and zymogen granules in their cytoplasm. It is suggested, that their presence is indicative of one of possible directions of pancreatic islet regeneration.
Databáze: OpenAIRE