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>Immunocytochemical localization of S-100 protein in the hypophysis and saccus vasculosus of the elasmobranchsMustelus manazoandScyliorhinus torazame
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Immunocytochemical localization of S-100 protein in the hypophysis and saccus vasculosus of the elasmobranchsMustelus manazoandScyliorhinus torazame
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机译：Immunocytochemical localization of S-100 protein in the hypophysis and saccus vasculosus of the elasmobranchsMustelus manazoandScyliorhinus torazame
S-100 protein-immunoreactive cells were demonstrated by immunocytochemical procedures in the hypophysis and saccus vasculosus of two species of elasmobranchs (Mustelus manazoandScyliorhinus torazame). In the saccus vasculosus ofM. manazo, immunoreactivity was detectable exclusively in the fibrous portions interposed between the epithelial layer and the blood vessels. In the neurohypophysis, tanycytes and astrocytes of the median eminence were immunostained, but only a few labeled cells were found in the neurointermediate lobe. InS. torazame, the neurohypophysis displayed a similar distribution of immunoreactivity, but there were no labeled cells in the saccus vasculosus. In both species, none of the glandular cells of the hypophysis displayed immunoreactivity. Electron-microscopic examination showed that the immunostained cells in the saccus vasculosus correspond to astrocytes.
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