Lill Tove N. Nilsen

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BACKGROUND Climate therapy (heliotherapy) of psoriasis is an effective and natural treatment. Ultraviolet radiation (UVB) from the sun improves psoriasis and induces vitamin D(3) synthesis. OBJECTIVE The aim of the study was to investigate the effect of climate therapy on vitamin D(3) synthesis, blood glucose, lipids and vitamin B12 in psoriasis patients.(More)
Indoor tanning increases skin cancer risk, but the importance of different parts of the UV spectrum is unclear. We assessed irradiance of tanning devices in Norway for the period 1983-2005. Since 1983, all tanning models needed approval before being sold or used. UV Type 3 limits were valid from late 1992 (<0.15 W m(-2) for CIE-weighted, i.e. erythemally(More)
Indoor tanning is common in spite of its classification as carcinogenic. Too high an ultraviolet (UV) irradiance and a lack of compliance with regulations have been reported. We measured UV irradiance from a large number of Norwegian solariums (sunbeds and stand-up cabinets) currently in use. Compliance (solariums and facilities) with national regulations(More)
BACKGROUND/PURPOSE Psoriasis is a chronic inflammatory disease affecting about 2-3% of the population. Sun exposure has a positive effect on most lesions, but ultraviolet (UV) radiation also constitutes a carcinogenic potential. Climate therapy is frequently used to treat patients, with the consequence that they may receive high doses of UV. This paper(More)
Use of indoor tanning devices increases the risk of cutaneous melanoma and nonmelanoma skin cancer. Indoor tanning devices have become important sources of ultraviolet (UV) exposure, both UVB and UVA. This systematic review assessed UV measurements performed in indoor tanning devices related to irradiance level, wavelength distribution and similarities to(More)
Psoriasis is a chronic inflammatory disease involving about 2–3% of the Norwegian population. Sun exposure has a positive effect on most psoriasis lesions, but ultraviolet (UV) radiation also causes a direct DNA damage in the skin cells and comprises a carcinogenic potential. UV exposure on the skin causes a local as well as a systemic 5 immune suppressive(More)
The aim of the present study was to prospectively examine risk of cutaneous melanoma (CM) according to measured anthropometric factors, adjusted for exposure to ultraviolet radiation (UVR), in a large population-based cohort in Norway. The Janus Cohort, including 292,851 Norwegians recruited 1972-2003, was linked to the Cancer Registry of Norway and(More)
BACKGROUND Some researchers have suggested to use an indoor tanning device (solarium) as a vitamin D source for disease prevention. MATERIAL AND METHODS The article is based on non-systematic searches in PubMed and ISI, and the authors' experience from epidemiologic research and studies of solarium irradiance. RESULTS Vitamin D deficiency is an(More)