Solar radiation and nutritional problems of vitamin D.
نویسندگان
چکیده
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 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 کاملRoles of solar UV radiation and vitamin D in human health and how to obtain vitamin D
Exposure to solar UV radiation is a double-edged sword: the benefits include vitamin D3 production and tanning, while the risks include diseases linked to free-radical production and DNA damage. Research during the past few years has demonstrated that the health benefits of solar UVB (290–315 nm), the primary source of vitamin D3 for many people, now include reduced risk for bone diseases, many...
متن کاملThe seasonality of pandemic and non-pandemic influenzas: the roles of solar radiation and vitamin D.
OBJECTIVES Seasonal variations in ultraviolet B (UVB) radiation cause seasonal variations in vitamin D status. This may influence immune responses and play a role in the seasonality of influenza. METHODS Pandemic and non-pandemic influenzas in Sweden, Norway, the USA, Singapore, and Japan were studied. Weekly/monthly influenza incidence and death rates were evaluated in view of monthly UVB fl...
متن کاملSolar radiation, vitamin D and survival rate of colon cancer in Norway.
Solar radiation contributes significantly to the status of serum calcidiol (25-hydroxyvitamin D3, 25-(OH)D3) in humans, even at the high latitudes of northern Norway. Thus, in late summer the serum concentration of calcidiol is roughly 50% larger than that in late winter, when the solar radiation in Norway contains too little ultraviolet radiation to induce any synthesis of vitamin D3 in human ...
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ژورنال
عنوان ژورنال: Eisei kagaku
سال: 1985
ISSN: 0013-273X
DOI: 10.1248/jhs1956.31.156