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Hypoxia

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Related Experiment Video

Updated: Dec 15, 2025

Supramaximal Intensity Hypoxic Exercise and Vascular Function Assessment in Mice

Supramaximal Intensity Hypoxic Exercise and Vascular Function Assessment in Mice

Published on: March 15, 2019

The Hyperoxic-Hypoxic Paradox.

Amir Hadanny^1,2,3, Shai Efrati^1,2,4

¹The Sagol Center for Hyperbaric Medicine and Research, Shamir (Assaf-Harofeh) Medical Center, Zerifin 70300, Israel.

|July 8, 2020

Summary

This summary is machine-generated.

Oxygen levels critically impact metabolism. Fluctuations, not just low oxygen (hypoxia), trigger cellular responses, a phenomenon known as the hyperoxic-hypoxic paradox, influencing gene expression and regeneration.

Keywords:

biogenesis hyperbaric oxygen hyperoxia hyperoxic-hypoxic paradox hypoxia hypoxia-inducible factor (HIF)

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Last Updated: Dec 15, 2025

Supramaximal Intensity Hypoxic Exercise and Vascular Function Assessment in Mice

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Published on: March 15, 2019

A Model to Simulate Clinically Relevant Hypoxia in Humans

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Delivery of In Vivo Acute Intermittent Hypoxia in Neonatal Rodents to Prime Subventricular Zone-derived Neural Progenitor Cell Cultures

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Published on: November 2, 2015

Area of Science:

Physiology
Cellular Biology
Biochemistry

Background:

Metabolism relies on precise oxygen levels.
Hypoxia (low oxygen) powerfully drives gene expression, metabolic shifts, and regenerative processes like angiogenesis and stem cell activity.
Cellular oxygen sensing involves chemoreceptors and metabolic cues.

Purpose of the Study:

To review oxygen physiology.
To outline cellular processes induced by hypoxia.
To explain the cascade of events triggered by the hyperoxic-hypoxic paradox (HHP).

Main Methods:

Review of existing literature on oxygen physiology.
Analysis of cellular responses to hypoxia.
Examination of the mechanisms behind the hyperoxic-hypoxic paradox.

Main Results:

Hypoxia induces significant changes in gene expression, metabolism, and regeneration.
Oxygen level fluctuations, not just absolute levels, can trigger hypoxia-like responses.
The hyperoxic-hypoxic paradox describes how intermittent hyperoxia mimics hypoxia's effects.

Conclusions:

Oxygen homeostasis is crucial for effective metabolism.
Cellular responses to oxygen are complex and can be triggered by fluctuations.
Understanding the hyperoxic-hypoxic paradox offers insights into cellular adaptation and regeneration.