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The Neuroendocrine System in the Intestinal Tract and Pancreas of Antarctic Fish

  • Grazia Tagliafierro
  • Marina Carlini
  • Gabriella Faraldi
  • Lorenzo Gallus

Abstract

The neuroendocrine system (NES) is composed of endocrine cells and nerve elements containing a large variety of low molecular weight peptides; they are generally called neuropeptides or regulatory peptides and are contained in secretory granules. The endocrine cells can be grouped to form endocrine glands such as the pancreas, or they can be found, as single elements, within the epithelial component of different organs, such as the gut and the respiratory tract. The epithelial endocrine cells lie on the basement membrane and frequently have a cytoplasmic process extending to the lumen; this basal-granulated cell is called the open type endocrine cell. Other basal-granulated cells do not reach the lumen, and are called the closed type endocrine cell; the latter cell type lies flat on the basement membrane [1]. In both cases the release of the granule content occurs at the base of the cell near a blood vessel [2].

Keywords

Vasoactive Intestinal Peptide Endocrine Cell Vasoactive Intestinal Polypeptide Regulatory Peptide Neuroendocrine System 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Italia 1998

Authors and Affiliations

  • Grazia Tagliafierro
    • 1
  • Marina Carlini
    • 1
  • Gabriella Faraldi
    • 1
  • Lorenzo Gallus
    • 1
  1. 1.Istituto di Anatomia ComparataUniversità di GenovaGenovaItaly

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