Long-term effects of acute and of chronic hypoxia on behavior and on hippocampal histology in the developing brain

Brain Res Dev Brain Res. 2005 Jun 9;157(1):98-102. doi: 10.1016/j.devbrainres.2005.03.007. Epub 2005 Apr 26.

Abstract

Ten-day-old rat pups (P10) subjected to acute hypoxia (down to 4% O2) had as adults increased aggression (handling test), memory impairment (water maze test), and decreased CA1 cell counts. Pups subjected to chronic hypoxia (10% O2 from P0 to P21) had increased aggression, hyperactivity (open-field test), and decreased CA1 cell counts. Chronic hypoxia with superimposed acute hypoxia resulted in consequences that were not different from those of chronic hypoxia.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Analysis of Variance
  • Animals
  • Animals, Newborn
  • Behavior, Animal / physiology*
  • Cell Count / methods
  • Cell Death / physiology
  • Chronic Disease
  • Enzyme-Linked Immunosorbent Assay
  • Erythropoietin / blood
  • Exploratory Behavior / physiology
  • Hippocampus* / growth & development
  • Hippocampus* / pathology
  • Hippocampus* / physiopathology
  • Hypoxia / blood
  • Hypoxia / pathology*
  • Hypoxia / physiopathology*
  • In Situ Nick-End Labeling / methods
  • Maze Learning / physiology
  • Rats
  • Rats, Sprague-Dawley
  • Time Factors
  • Time*

Substances

  • Erythropoietin