Chronic sunscreen use decreases circulating concentrations of 25-hydroxyvitamin D. A preliminary study

Matsuoka, Lois Y.

doi:10.1001/archderm.124.12.1802

Cited by 88 publications

(85 citation statements)

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“…Owing to Germany 0 s geographic position, the use of sunscreen as a part of everyday life is not as common as in some countries. Few data have been published regarding the effect of sunscreen on circulating vitamin D levels, but the results indicate that sunscreen interferes with cutaneous vitamin D production [28].…”

Section: Discussionmentioning

confidence: 99%

Is There an Epidemic Vitamin D Deficiency in German Orthopaedic Patients?

Maier

Jakobs

Roth

et al. 2013

Clinical Orthopaedics &Amp; Related Research

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Background Vitamin D plays an essential role in bone health and muscle function. Some studies have shown a widespread rate of vitamin D deficiency in the general population, but few have reported on the vitamin D status of orthopaedic patients.Questions/purposes We investigated (1) the extent of hypovitaminosis D in orthopaedic patients, (2) seasonal variations in vitamin D levels, and (3) possible risk factors for insufficient vitamin D levels. Methods Vitamin D levels in 1119 patients consecutively admitted to an orthopaedic surgery department in 2011 were measured. To investigate the correlation between climate factors and vitamin D levels, the sunshine hours for each month in 2011 were collected by Deutscher Wetterdienst (the German weather service) in the region where most tested patients lived. The prevalence of normal ([ 30 ng/mL), insufficient (20-30 ng/mL), and deficient (\20 ng/mL) 25-hydroxyvitamin D levels was determined. Univariate and multivariate analyses were used to assess risk factors for insufficient vitamin D levels. Results Overall, 84% of patients had insufficient levels of vitamin D and 60% were vitamin D deficient. Only 15% were in the target range of 30 to 60 ng/mL. The prevalence of low vitamin D levels was greater during winter and months with fewer sunshine hours. Vitamin D levels did not vary according to age, sex, and disease. Individuals with obesity, hypertension, and osteoporosis were more likely to have low vitamin D levels compared with their healthy counterparts. Conclusions There is an alarmingly high rate of hypovitaminosis D and vitamin D deficiency among orthopaedic patients in this region of Germany, whose latitude (

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Section: Discussionmentioning

confidence: 99%

Is There an Epidemic Vitamin D Deficiency in German Orthopaedic Patients?

Maier

Jakobs

Roth

et al. 2013

Clinical Orthopaedics &Amp; Related Research

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“…However, at the population level, UV radiation exposure is affected by cultural and religious beliefs, e.g., clothing requirements or preference of pale or tanned skin, whereas within this context, individual-level sun exposure is highly behavior dependent (47). Vitamin D status depends not only on UV radiation exposure of the skin (48,49), but on skin pigmentation (50), diet (51), and genetic factors (52). Furthermore, at higher latitudes, increased dietary vitamin D intake (53) may uncouple a direct association between UV radiation exposure and vitamin D status.…”

Section: Discussionmentioning

confidence: 99%

Antineutrophil cytoplasmic antibody–associated vasculitides: Could geographic patterns be explained by ambient ultraviolet radiation?

Gatenby

Lucas

Engelsen

et al. 2009

Arthritis & Rheumatism

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Objective. This ecological study describes and quantifies the association between ambient ultraviolet (UV) radiation levels, including daily winter vitamin D effective UV radiation levels and the incidence of the 3 antineutrophil cytoplasmic antibody-associated vasculitides (AAVs): Wegener's granulomatosis (WG), microscopic polyangiitis (MPA), and Churg-Strauss syndrome (CSS). Latitudinal variation in occurrence of the AAVs, especially WG, has been previously reported. For other autoimmune diseases such as multiple sclerosis and type 1 diabetes mellitus, inverse associations with latitude are hypothesized to indicate a causative role for low UV radiation exposure, possibly acting via vitamin D status. Methods. Published epidemiologic studies provided data on incident cases, total population of study regions, age-specific incidence rates, and study location. From these data and online age-specific population data, we calculated crude incidence rates, the expected number of cases (to control for possible age confounding), and measures of ambient UV radiation. Negative binomial regression models were used to calculate the incidence rate ratio (IRR) for a 1,000 joules/m 2 increase in ambient UV radiation.

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“…Skin pigment is probably a major factor in the very low 25 (OH)D levels seen in the Indian subcontinent, despite abundant sunshine [20,25,28]. However, more widespread use of sunscreen users in lighter-skinned populations (now also increasingly used by darker-skinned peoples), may also significantly diminish the cutaneous synthesis of vitamin D 3 [152].…”

Section: Genetic Traits and Cultural Behaviourmentioning

confidence: 99%