Immunocytochemical demonstration of met-enkephalin in the central nervous system of the domestic fowl |
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Authors: | PD Dr S Blähser M P Dubois |
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Institution: | (1) Institut für Anatomie und Cytobiologie, Aulweg 123, D-6300 Giessen, Federal Republic of Germany;(2) INRA — Centre de Recherches de Tours, Nouzilly, Monnaie, France |
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Abstract: | Summary In the central nervous system of the male domestic fowl, met-enkephalin (ENK) immunoreactive perikarya and fiber tracts as well as extensive but sharply delimited fiber networks were visualized by means of the PAP technique. The most striking results were: (1) The demonstration of an association of ENK-containing structures with branchial nerves; (2) the spatial relationship of ENK-containing perikarya and fibers to somatostatin (SOM) and arginine-vasotocin (AVT)-immunoreactive systems; (3) the presence of dense and extensive ENK fiber networks within (a) the caudo-basal wall of the third ventricle and (b) the septal-preoptic area; in both regions mainly ENK fibers, but also SOM and AVT fibers, may cross to the contralateral side. |
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Keywords: | Peptidergic neuroendocrine system Domestic fowl Metenkephalin system Immunocytochemistry |
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