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Immunohistochemical mapping of galanin-like immunoreactivity in the brain of the dogfish Scyliorhinus canicula
Vallarino, M.; Feuilloley, M.; Vandesande, F.; Vaudry, H. (1991). Immunohistochemical mapping of galanin-like immunoreactivity in the brain of the dogfish Scyliorhinus canicula. Peptides (New York, NY : 1980) 12(2): 351-357. dx.doi.org/10.1016/0196-9781(91)90025-K
In: Peptides. Elsevier: New York etc.. ISSN 0196-9781, more
Peer reviewed article  

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Keywords
    Scyliorhinus canicula (Linnaeus, 1758) [WoRMS]; Marine
Author keywords
    GALANIN; BRAIN; IMMUNOCYTOCHEMISTRY; NEUROPEPTIDES; NEUROSECRETION;SCYLIORHINUS-CANICULA

Authors  Top 
  • Vallarino, M.
  • Feuilloley, M.
  • Vandesande, F.
  • Vaudry, H.

Abstract
    The distribution of galanin-like immunoreactivity in the brain of the dogfish Scyliorhinus canicula was investigated using the indirect immunofluorescence technique. In the telencephalon, positive cells and fibers were located in the mid-caudal part of the area superficialis basalis, the n. septi caudoventralis and in the n. interstitialis commissurae anterioris. Most of the galanin-containing neurons observed in the hypothalamus were located in the magnocellular preoptic nucleus. Positive perikarya were also found in the n. lobi lateralis hypothalami and in the n. lateralis tuberis. A dense network of positive nerve processes was noted in the caudal part of the median eminence. In the dorso-caudal part of the diencephalon numerous immunoreactive neurons were seen in the recessus posterioris. A large bundle of galanin-containing fibers, which divided in two branches, was observed in the basal midbrain tegmentum. The widespread distribution of galanin-like material suggests that, in the dogfish, galanin may be involved in various brain functions including neuroendocrine regulations.

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