title: Immunocytochemical demonstration of somatostatin-containing neurons in the hypothalamus of the domestic mallard.
abstract: In the hypothalamus of the adult domestic mallard, small to medium-sized perikarya are stained specifically with rabbit antiserum against cyclic somatostatin (PAP technique of Sternberger). The somatostatin-immunoreactive material is located in neurons different from those containing immunoreactive LHRH, vasotocin or mesotocin. Somatostatin-containing perikarya are observed 1) in a chain-like arrangement extending from the area of the median division of the supraoptic nucleus to the caudal end of the paraventricular nucleus; 2) as single cells in the preoptic region; and 3) as a conspicuous formation in the optic tract division of the supraoptic nucleus. In the rostral portion of the median eminence, somatostatin-immunoreactive axons penetrate into the external zone. Fine accessory fiber bundles project to the neural lobe.
mesh_terms: D000818:Animals; D001369:Axons / Q000032:analysis; D004372:Ducks; D007031:Hypothalamus / Q000032:analysis*; D007120:Immunochemistry; D008473:Median Eminence / Q000032:analysis; D009474:Neurons / Q000032:analysis*; D013004:Somatostatin / Q000032:analysis*
chemical_list: D013004:Somatostatin