Morphologic study of the liver of lambari (Astyanax altiparanae) with emphasis on the distribution of cytokeratin.

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  • Author(s): Chehade C;Chehade C; Cassel M; Borella MI; Costa FG
  • Source:
    Fish physiology and biochemistry [Fish Physiol Biochem] 2014 Apr; Vol. 40 (2), pp. 571-6. Date of Electronic Publication: 2013 Sep 24.
  • Publication Type:
    Journal Article
  • Language:
    English
  • Additional Information
    • Source:
      Publisher: Kluwer Academic Publishers Country of Publication: Netherlands NLM ID: 100955049 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1573-5168 (Electronic) Linking ISSN: 09201742 NLM ISO Abbreviation: Fish Physiol Biochem Subsets: MEDLINE
    • Publication Information:
      Publication: Dordrecht ; Boston : Kluwer Academic Publishers
      Original Publication: Amsterdam ; Berkeley : Kugler, 1986-
    • Subject Terms:
      Characidae/*anatomy & histology ; Characidae/*metabolism ; Fish Proteins/*metabolism ; Keratins/*metabolism ; Liver/*anatomy & histology ; Liver/*metabolism; Animals ; Brazil ; Hepatocytes/cytology ; Hepatocytes/metabolism ; Hepatopancreas/anatomy & histology ; Hepatopancreas/metabolism ; Immunohistochemistry ; Kupffer Cells/cytology ; Kupffer Cells/metabolism ; Liver/blood supply ; Tissue Distribution
    • Abstract:
      Studies on the morphology of the liver of teleosts reflect some controversy in the interpretation of the data, but also provide confirmation of variations in the structure of the organ in several species. Thus, we intend to understand the specific structural organization of the liver of Astyanax altiparanae. Specimens were collected in the city of Andirá, Paraná, Brazil. The livers were processed according to histological routine for inclusion in Paraplast, and the sections were stained with HE and Mallory's trichrome or followed the protocol for fluorescence immunohistochemistry, anti-cytokeratin. The liver of A. altiparanae was covered by a capsule of connective tissue, without delimiting lobes. The hepatocytes had an arrangement in cords around sinusoids. Melanomacrophage centers were observed. The vascular components and intrahepatic pancreatic acini were distributed between hepatocytes. Presence of cytokeratin was detected in tissues that lined the liver and endothelial cells of sinusoids. The comparison of the liver of A. altiparanae to other characids corroborates with the fact that there is variation in the morphology of the liver even between closely related species. Moreover, it appears that in this species, endothelial cells of sinusoids can synthesize the cytokeratin filaments required for the regulation of blood flow in capillaries in adults.
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    • Accession Number:
      0 (Fish Proteins)
      68238-35-7 (Keratins)
    • Publication Date:
      Date Created: 20130925 Date Completed: 20150219 Latest Revision: 20211021
    • Publication Date:
      20231215
    • Accession Number:
      10.1007/s10695-013-9867-6
    • Accession Number:
      24061935