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Immunohistochemical study on the distribution of endocrine cells in the gastrointestinal tract of the babirusa,

S Agungpriyono1, A A Macdonald, K Y Leus

  • 1Department of Veterinary Anatomy, Obihiro University of Agriculture and Veterinary Medicine, Japan.

Anatomia, Histologia, Embryologia
|August 5, 2000
PubMed
Summary
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This study mapped endocrine cells in the babirusa

Area of Science:

  • Gastroenterology and Endocrinology
  • Comparative Anatomy
  • Immunohistochemistry

Background:

  • Endocrine cells in the gastrointestinal tract regulate digestive functions.
  • Understanding their distribution in diverse species like the babirusa provides comparative insights.

Purpose of the Study:

  • To investigate the distribution and frequency of gut endocrine cells in the babirusa.
  • To compare babirusa endocrine cell distribution with that of pigs.

Main Methods:

  • Immunohistochemistry using the avidin-biotin-peroxidase complex method.
  • Detection of thirteen types of gut endocrine cells based on immunoreactivity to specific hormones and peptides.

Main Results:

  • Thirteen types of gut endocrine cells were identified, including those for serotonin, somatostatin, gastrin, and peptide tyrosine tyrosine (PYY).

Related Experiment Videos

  • While some cells (e.g., chromogranin, serotonin) were widespread, others showed restricted distributions (e.g., gastrin, neurotensin).
  • Unexpected findings included methionine-enkephalin-Arg6-Gly7-Leu8 (MENK8) in the stomach and PYY in the small intestine.

    • Conclusions:

    • The babirusa exhibits a unique distribution pattern of gut endocrine cells compared to pigs.
    • These variations may reflect specific regulatory mechanisms of the babirusa's digestive system.