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Oxygen Prevents Skin Damage From UVB Rays In Mouse Study

June 29, 2010: 02:13 PM EST
Although Japanese scientists admit it’s unclear what the implications are for humans worried about sun-aged skin, their study in mice has found that oxygen helped prevent wrinkle formation by lessening tissue damage done by ultraviolet B (UVB) rays. The "sun-weathered" look from UVB radiation is caused by formation of new blood vessels from existing blood vessels in the skin, a process known as cutaneous angiogenesis. Hairless mice in the study were kept in an oxygen chamber after being exposed to UVB radiation from a special fluorescent lamp three times a week for five weeks. They developed fewer wrinkles and fewer signs of tissue damage than mice who were exposed to UVB radiation alone. The scientists said more study of the phenomenon is warranted.
Shigeo Kawada, Masaru Ohtani and Naokata Ishii, " Increased oxygen tension attenuates acute ultraviolet-B-induced skin angiogenesis and wrinkle formation", American Journal of Physiology - Regulatory, Integrative and Comparative Physiology, June 29, 2010, © American Physiological Society
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