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Oxygen in wound healing--more than a nutrient
Andrea A Tandara1, Thomas A Mustoe
1Wound Healing Research Laboratory, Northwestern University, 303 East Chicago Avenue, Tarry Bldg 4-720, Chicago, IL 60611, USA.
World Journal of Surgery
|February 13, 2004
Summary
Oxygen
Area of Science:
- Cellular Biology
- Physiology
- Wound Healing Research
Background:
- Oxygen's role in wound healing has evolved from metabolism to cell signaling.
- Hypoxia and hyperoxia are recognized as key modulators of healing.
- Hypoxia-inducible factor 1 (HIF-1) plays a crucial role.
Purpose of the Study:
- To review the evolving understanding of oxygen's role in wound healing.
- To explore the impact of hypoxia and oxygen therapy in animal models.
- To discuss the mechanisms of hypoxia and hyperoxia in wound repair.
Main Methods:
- Review of existing literature on oxygen and wound healing.
- In vivo studies using animal models of skin ischemia.
- Investigation of oxygen therapy alone and with growth factors.
Main Results:
- Demonstrated a synergistic effect between systemic hyperbaric oxygen and growth factors.
- Highlighted the critical role of hypoxia-inducible factor 1 (HIF-1).
- Provided insights into the mechanisms of hypoxia and hyperoxia in wound healing.
Conclusions:
- Oxygen's role in wound healing is complex, involving both hypoxia and hyperoxia.
- Intermittent hypoxia and hyperoxia are important in regulating wound healing.
- HIF-1 is central to the interplay between hypoxia and hyperoxia in healing.