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Matti Narkia

Lack of Association between Serum Levels of 25-Hydroxyvitamin D and the Subsequent Risk... - 0 views

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    Lack of association between serum levels of 25-hydroxyvitamin D and the subsequent risk of prostate cancer in Finnish men.
    Faupel-Badger JM, Diaw L, Albanes D, Virtamo J, Woodson K, Tangrea JA.
    Cancer Epidemiol Biomarkers Prev. 2007 Dec;16(12):2784-6.
    PMID: 18086789
    doi: 10.1158/1055-9965.EPI-07-0672
Matti Narkia

Nordic Nutrition Recommendations 2004 - Norden - 0 views

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    "The Nordic countries have for several decades collaborated in setting guidelines for dietary composition and recommended intakes of nutrients. This 4th edition, NNR 2004, contains a summary, presented in Chapters 1 and 2, while the subsequent chapters provide the scientific background documentation. Recommendations have been changed only when strong scientific evidence has evolved since the 3rd edition. A Nordic perspective has been accounted for in setting the recommendations."
Matti Narkia

Differences in vitamin D status between countries in young adults and the elderly - 0 views

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    Differences in vitamin D status between countries in young adults and the elderly.
    McKenna MJ.
    Am J Med. 1992 Jul;93(1):69-77.
    PMID: 1385673

    PURPOSE: To compare vitamin D status between countries in young adults and in the elderly. MATERIALS AND METHODS: Reports on vitamin D status (as assessed by serum 25-hydroxyvitamin D) from 1971 to 1990 were reviewed. Studies were grouped according to geographic regions: North America (including Canada and the United States); Scandinavia (including Denmark, Finland, Norway, and Sweden); and Central and Western Europe (including Belgium, France, Germany, Ireland, The Netherlands, Switzerland, and the United Kingdom). RESULTS: Vitamin D status varies with the season in young adults and in the elderly, and is lower during the winter in Europe than in both North America and Scandinavia. Oral vitamin D intake is lower in Europe than in both North America and Scandinavia. Hypovitaminosis D and related abnormalities in bone chemistry are most common in elderly residents in Europe but are reported in all elderly populations. CONCLUSIONS: The vitamin D status in young adults and the elderly varies widely with the country of residence. Adequate exposure to summer sunlight is the essential means to ample supply, but oral intake augmented by both fortification and supplementation is necessary to maintain baseline stores. All countries should adopt a fortification policy. It seems likely that the elderly would benefit additionally from a daily supplement of 10 micrograms of vitamin D.
Matti Narkia

Vitamin D and living in northern latitudes--an endemic risk area for vitamin D deficien... - 0 views

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    Vitamin D and living in northern latitudes--an endemic risk area for vitamin D deficiency.
    Huotari A, Herzig KH.
    Int J Circumpolar Health. 2008 Jun;67(2-3):164-78. Review.
    PMID: 18767337

    CONCLUSIONS: Vitamin D plays a fundamental role in calcium and phosphate homeostasis. A deficiency of vitamin D has been attributed to several diseases. Since its production in the skin depends on exposure to UVB-radiation via the sunlight, the level of vitamin D is of crucial importance for the health of inhabitants who live in the Nordic latitudes where there is diminished exposure to sunlight during the winter season. Therefore, fortification or supplementation of vitamin D is necessary for most of the people living in the northern latitudes during the winter season to maintain adequate levels of circulating 25(OH)D3 to maintain optimal body function and prevent diseases.
Matti Narkia

Both high and low levels of blood vitamin D are associated with a higher prostate cance... - 0 views

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    Both high and low levels of blood vitamin D are associated with a higher prostate cancer risk: a longitudinal, nested case-control study in the Nordic countries.
    Tuohimaa P, Tenkanen L, Ahonen M, Lumme S, Jellum E, Hallmans G, Stattin P, Harvei S, Hakulinen T, Luostarinen T, Dillner J, Lehtinen M, Hakama M.
    Int J Cancer. 2004 Jan 1;108(1):104-8.
    PMID: 14618623
    DOI: 10.1002/ijc.11375
Matti Narkia

Enzyme kinetics hypothesis to explain the U-shaped risk curve for prostate cancer vs. 2... - 0 views

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    Enzyme kinetics hypothesis to explain the U-shaped risk curve for prostate cancer vs. 25-hydroxyvitamin D in nordic countries.
    Vieth R.
    Int J Cancer. 2004 Sep 1;111(3):468; author reply 469.
    PMID: 15221979
    DOI: 10.1002/ijc.20218
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