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September 12, 2025International Journal of Molecular SciencesOpen Access

Impact of Exposure Duration to High-Altitude Hypoxia on Oxidative Homeostasis in Rat Brain Regions

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Authors

BLBoris Lira-MejíaRCRoger Calderon-RomeroJOJorge Ordaya-Fierro

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Overview

This study examines oxidative stress effects from hypoxia exposure duration in rat brains, revealing critical insights into organ health.

Key Points

  • Exposure to high-altitude hypoxia significantly increases reactive oxygen species and oxidative stress markers in rat brains.
  • Measurements showed elevated levels of malondialdehyde and superoxide dismutase across brain regions with longer exposure to altitude.
  • Catalase activity decreased with prolonged hypoxic exposure, correlating with increased oxidative disruption of brain homeostasis.
  • The most pronounced effects occurred in the hippocampus, cortex, and striatum, emphasizing the vulnerability of these regions to hypoxia.

Cite This Study

Lira-Mejía et al. (2025) studied this question.

synapsesocial.com/papers/68d41da1713b0b5dfea66bb5https://doi.org/10.3390/ijms26178714
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