title: [Vitamin D, ultraviolet rays and skin cancer].
abstract: Vitamin D, ultraviolets and skin cancer The vitamin D supply is fundamental for the prevention of falls and fractures in aged people, among other effects. UVB triggers vitamin D synthesis in the skin. This relationship has recently gained attention both with the general public and with health care professionals. Some authors suggest a relaxation of UV protection measures, while others even advocate regular sunlight exposure in order to increase cutaneous vitamin D synthesis. However, the UV irradiation responsible for vitamin D synthesis also is a known carcinogen. UV exposure is an insufficient and harmful method to increase vitamin D synthesis. Oral supplementation is the recommended way to prevent and cure vitamin D deficiency.
authors.affiliation: Dermatologische Klinik, UniversitätsSpital Zürich. marjam.barysch@usz.ch
authors.forename: M-J
authors.initials: MJ
authors.lastname: Barysch
authors.forename: L
authors.initials: L
authors.lastname: Feldmeyer
authors.forename: H
authors.initials: H
authors.lastname: Bischoff-Ferrari
authors.forename: G
authors.initials: G
authors.lastname: Hofbauer
authors.forename: R
authors.initials: R
authors.lastname: Dummer
mesh_terms: D006801:Humans; D012867:Skin / Q000378:metabolism*; D012878:Skin Neoplasms / Q000209:etiology*; D013472:Sunlight / Q000009:adverse effects; D014466:Ultraviolet Rays / Q000009:adverse effects*; D014807:Vitamin D / Q000096:biosynthesis*
chemical_list: D014807:Vitamin D