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Food consumption increases cell proliferation in the python brain.

Stacy S Habroun1,2, Andrew A Schaffner3, Emily N Taylor1

  • 1Biological Sciences Department, California Polytechnic State University, San Luis Obispo, CA 93407-0401, USA.

The Journal of Experimental Biology
|March 3, 2018
PubMed
Summary
This summary is machine-generated.

In pythons, brain cell proliferation significantly increases 6 days after a meal, long after digestion. This study explores postprandial brain plasticity in these model organisms.

Keywords:
BrdUFeedingPostprandialPython regius, Telencephalon, NeurogenesisSnake

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Area of Science:

  • Neuroscience
  • Comparative Physiology
  • Herpetology

Background:

  • Pythons serve as valuable models for studying physiological adaptations to feeding.
  • Systemic physiological changes following food intake are well-documented in pythons.
  • The impact of feeding on brain activity and cellular processes remains largely uninvestigated.

Purpose of the Study:

  • To test the hypothesis that food consumption stimulates cell proliferation in the python brain.
  • To investigate the temporal dynamics of brain cell proliferation in response to feeding.

Main Methods:

  • Male ball pythons (Python regius) were utilized as the model organism.
  • 5-bromo-2'-deoxyuridine (BrdU) was administered as a marker for newly born cells.
  • Cell proliferation was quantified and compared in the brains of fasted snakes and those at 2 and 6 days post-feeding.

Main Results:

  • A significant increase in cell proliferation was observed throughout the telencephalon at 6 days after feeding.
  • No significant difference in cell proliferation was detected between the 2-day post-feeding group and the fasted control group.
  • Brain cell proliferation surges after the completion of digestion and absorption, contrasting with rapid systemic responses.

Conclusions:

  • Food consumption triggers a delayed but significant increase in brain cell proliferation in pythons.
  • Postprandial brain plasticity, specifically cell proliferation, occurs later in the digestive cycle than systemic changes.
  • These findings highlight a unique temporal pattern of neural adaptation to nutrient intake in reptiles.