Abstract |
DNA damage caused by ultraviolet (UV) irradiation is considered the main etiologic factor contributing to the development of skin cancer. Systemic or topical application of antioxidants has been suggested as a protective measure against UV-induced skin damage. We investigated the effect of long-term oral administration of a combination of the antioxidants ascorbic acid ( vitamin C) and D-alpha-tocopherol ( vitamin E) in human volunteers on UVB-induced epidermal damage. The intake of vitamins C and E for a period of 3 mo significantly reduced the sunburn reaction to UVB irradiation. Detection of thymine dimers in the skin using a specific antibody revealed a significant increase of this type of DNA damage following UVB exposure. After 3 mo of antioxidant administration, significantly less thymine dimers were induced by the UVB challenge, suggesting that antioxidant treatment protected against DNA damage.
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Authors | Marianne Placzek, Sabine Gaube, Urs Kerkmann, Klaus-Peter Gilbertz, Thomas Herzinger, Ekkehard Haen, Bernhard Przybilla |
Journal | The Journal of investigative dermatology
(J Invest Dermatol)
Vol. 124
Issue 2
Pg. 304-7
(Feb 2005)
ISSN: 0022-202X [Print] United States |
PMID | 15675947
(Publication Type: Clinical Trial, Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Antioxidants
- Pyrimidine Dimers
- alpha-Tocopherol
- Ascorbic Acid
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Topics |
- Administration, Oral
- Adult
- Aged
- Antioxidants
(administration & dosage)
- Ascorbic Acid
(administration & dosage)
- Biopsy
- DNA Damage
(drug effects)
- Drug Therapy, Combination
- Epidermis
(drug effects, metabolism, radiation effects)
- Female
- Humans
- Male
- Middle Aged
- Pyrimidine Dimers
(metabolism)
- Sunburn
(drug therapy, metabolism)
- Ultraviolet Rays
- alpha-Tocopherol
(administration & dosage)
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