title: Histochemical identification of fish ultimobranchial cells with polypeptide hormone producing APUD cells.
abstract: This investigation is concerned with the possibilities to include the fish ultimobranchial cells in the polypeptide hormone producing APUD cell series because of the capacity of these endocrine cells to give positive reactions to visualize APUD cell system.
mesh_terms: D001078:APUD Cells / Q000032:analysis / Q000378:metabolism*; D000818:Animals; D002116:Calcitonin / Q000096:biosynthesis*; D002395:Catecholamines / Q000032:analysis; D005260:Female; D005399:Fishes / Q000033:anatomy & histology* / Q000378:metabolism; D006651:Histocytochemistry; D014460:Ultimobranchial Body / Q000166:cytology* / Q000378:metabolism
chemical_list: D002395:Catecholamines; D002116:Calcitonin