Saturday, January 22, 2011

Association of facial skin aging and vitamin D levels in middle-aged white women.

Cancer Causes Control. 2010 Dec;21(12):2315-6. Epub 2010 Sep 30.


Association of facial skin aging and vitamin D levels in middle-aged white women.

Chang AL, Fu T, Amir O, Tang JY.

Department of Dermatology, Stanford University School of Medicine, 450 Broadway, Pavilion C, MC 5334, Redwood City, CA 94305, USA.

Abstract

To investigate the relationship between UV-induced skin photodamage and 25(OH) vitamin D levels, we performed a cross-sectional study in 45 female subjects aged >40. Menopausal status, smoking status, skin cancer history, oral supplement use, and season of blood draw were recorded and serum 25(OH)D measured. A single-blinded, dermatologist evaluated standardized digital facial images for overall photodamage, erythema/telangiectasias, hyperpigmentation, number of lentigines, and wrinkling. Adjusting for age and season of blood collection, women with lower photodamage scores were associated with a 5-fold increased odds of being vitamin D insufficient (OR 5.0, 95% CI: 1.1, 23). Low scores for specific photodamage parameters including erythema/telangiectasias, hyperpigmentation, and wrinkling were also significantly associated with vitamin D insufficiency. Our results suggest an association between skin aging and 25(OH)D levels.