منابع مشابه
Influenza, solar radiation and vitamin D.
The annual death numbers of influenza and pneumonia in Norway were studied for the time period 1980-2000. No direct relationships were found with the variations of the annual UVB fluences, probably due to the fact that these variations did not exceed 30%. However, there was a very pronounced seasonal variation of both influenza deaths and pneumonia deaths, the vast majority occurring during the...
متن کاملInfluenza pandemics, solar activity cycles, and vitamin D.
There is historic evidence that influenza pandemics are associated with solar activity cycles (the Schwabe-cycle of about 11-years periodicity). The hypothesis is presented and developed that influenza pandemics are associated with solar control of vitamin D levels in humans which waxes and wanes in concert with solar cycle dependent ultraviolet radiation. It is proposed that this solar cycle d...
متن کاملVitamin D-effective solar UV radiation, dietary vitamin D and breast cancer risk.
Vitamin D is well known for its important role in calcium and phosphor homeostasis. Recent research suggests that vitamin D also prevent some type of cancers. We studied solar vitamin D effective UV radiation (VD dose), dietary vitamin D, sun-seeking holidays, use of solarium, frequency of sunburn and breast cancer risk in a large population-based cohort study. A total of 41,811 women from the ...
متن کاملVitamin D and influenza.
Vitamin D has become increasingly recognized in the literature for its extra-skeletal roles, including an effect on inflammation and the immune response to infection. Our goal was to describe the role of vitamin D in the immune response and implications for the risk of influenza infection in humans. In this review, we first consider literature that provides molecular and genetic support to the ...
متن کاملEpidemic influenza and vitamin D.
In 1981, R. Edgar Hope-Simpson proposed that a 'seasonal stimulus' intimately associated with solar radiation explained the remarkable seasonality of epidemic influenza. Solar radiation triggers robust seasonal vitamin D production in the skin; vitamin D deficiency is common in the winter, and activated vitamin D, 1,25(OH)2D, a steroid hormone, has profound effects on human immunity. 1,25(OH)2D...
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ژورنال
عنوان ژورنال: Dermato-Endocrinology
سال: 2009
ISSN: 1938-1980
DOI: 10.4161/derm.1.6.11357