Regulatory peptides in the urinary bladder of two genera of Antarctic Teleosts

Somatostatin 14, prolactin, atrial natriuretic peptide, galanin and urotensin II were found using immunohistochemistry in the urinary bladders of the Antarctic ®shes Trematomus bernacchii (Nototheniidae) and Chionodraco hamatus (Channichthyidae) caught in the Ross Sea. The urinary bladders of the tw...

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Bibliographic Details
Published in:Polar Biology
Main Authors: MASINI, MARIA ANGELA, M. STURLA, P. PRATO, P. ROMANO, B. UVA
Other Authors: Masini, MARIA ANGELA, M., Sturla, P., Prato, P., Romano, B., Uva
Format: Article in Journal/Newspaper
Language:English
Published: 1999
Subjects:
Antarctic
The Antarctic
Ross Sea
Antarc*
Online Access:http://hdl.handle.net/11579/90651
https://doi.org/10.1007/s003000050377
Description
Summary:Somatostatin 14, prolactin, atrial natriuretic peptide, galanin and urotensin II were found using immunohistochemistry in the urinary bladders of the Antarctic ®shes Trematomus bernacchii (Nototheniidae) and Chionodraco hamatus (Channichthyidae) caught in the Ross Sea. The urinary bladders of the two species showed a dierent histology in the epithelial layer. In T. bernacchii the epithelium comprises a single type of columnar cells, while in C. hamatus the columnar cells are restricted to the ventral portion of the bladder, and the dorso-lateral region is lined by cuboidal cells. No dierence in the intensity of the immunostaining was observed in the two cell types; the only variation was a dierent distribution of the immunoreactions, which were present in the whole cytoplasm in the cuboidal cells and restricted to the apical and/or basal portion of the columnar cells.

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