title: Immunohistochemical localization of somatostatin, insulin and glucagon in the principal islets of the anglerfish (Lophius americanus) and the channel catfish (Ictalurus punctata) (1) (2).
abstract: Somatostatin, insulin and glucagon were localized in the principal islets of the anglerfish (Lophius americanus) and the channel catfish (Ictalurus punctata) by means of the unlabeled antibody-peroxidase-antiperoxidase immunocytochemical method. Both species showed a similar ratio of positive cells 9:6:4 (insulin:somatostatin:glucagon), but the interrelations of the three cell types differed between species. The large number of somatostatin-positive cells may be indicative of an important role for this hormone in teleost physiology. The principal islets appear to be a good source of tissue for further work on somatostatin.
mesh_terms: D000818:Animals; D005399:Fishes / Q000378:metabolism*; D005455:Fluorescent Antibody Technique / Q000379:methods; D005934:Glucagon / Q000032:analysis*; D007328:Insulin / Q000032:analysis*; D007515:Islets of Langerhans / Q000032:analysis*; D013004:Somatostatin / Q000032:analysis*
chemical_list: D007328:Insulin; D013004:Somatostatin; D005934:Glucagon