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Am J Surg. 1990 Nov;160(5):519-24.

Relationship of oxygen dose to angiogenesis induction in irradiated tissue.

Author information

1
Division of Oral and Maxillofacial Surgery, University of Miami School of Medicine/Jackson Memorial Medical Center, Florida.

Abstract

This study was accomplished in an irradiated rabbit model to assess the angiogenic properties of normobaric oxygen and hyperbaric oxygen as compared with air-breathing controls. Results indicated that normobaric oxygen had no angiogenic properties above normal revascularization of irradiated tissue than did air-breathing controls (p = 0.89). Hyperbaric oxygen demonstrated an eight- to ninefold increased vascular density over both normobaric oxygen and air-breathing controls (p = 0.001). Irradiated tissue develops a hypovascular-hypocellular-hypoxic tissue that does not revascularize spontaneously. Results failed to demonstrate an angiogenic effect of normobaric oxygen. It is suggested that oxygen in this sense is a drug requiring hyperbaric pressures to generate therapeutic effects on chronically hypovascular irradiated tissue.

PMID:
2240387
[Indexed for MEDLINE]

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