title: Occurrence of biogenic amines in the pancreatic islets of sand rats (Psammomys obesus).
abstract: The islets of Langerhans of sand rats (Psammomys obesus) have been investigated ultrahistochemically in order to demonstrate biogenic amines. It could be found that amine-containing vesicles with a diameter of 600-700 nm from the type of catecholamine-granules exist in A-cells as well as in B-cells. It can be stated that the sand rat belongs to the species containing amines in A- and B-cells. The importance of the amines for the regulation of the hormone secretion of the islets of Langerhans is discussed and the connections to diabetes mellitus are referred too.
mesh_terms: D000818:Animals; D001679:Biogenic Amines / Q000032:analysis*; D003594:Cytoplasmic Granules / Q000032:analysis / Q000648:ultrastructure; D006651:Histocytochemistry; D066298:In Vitro Techniques; D007515:Islets of Langerhans / Q000032:analysis* / Q000648:ultrastructure; D008854:Microscopy, Electron; D051381:Rats
chemical_list: D001679:Biogenic Amines