Reduced Number of Actinic Keratoses With Topical Application of DNA Repair Enzyme Creams

December 2010 | Volume 9 | Issue 12 | Original Article | 1519 | Copyright © 2010

Telia DeBoyes MD, David Kouba MD, David Ozog MD, Edgar Fincher MD, Lauren Moy, Kathryn Iwata, Ronald Moy MD


Background: Actinic keratosis is regarded as a carcinoma in situ by some dermatologists and its incidence continues to rise. Exposure to ultraviolet (UV) radiation is considered to be an important risk factor for developing these pre-malignant lesions. DNA repair enzymes have been shown to reverse sun-damage, resulting in reduced rates of actinic keratoses and non-melanoma skin cancers in specific patient populations. Methods: Seventeen patients were evaluated for differences in actinic keratoses following topical application of T4N5 liposome lotion over 48 weeks. Results: Compared to baseline, a statistically significant reduction in the number of actinic keratoses was seen following the treatment period. Discussion: This study suggests that DNA repair enzyme creams effectively reduce the number of actinic keratoses in normal individuals with moderate-to-severe photodamaged skin.

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