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Matti Narkia

Association of low 25-hydroxyvitamin D concentrations with elevated parathyroid hormone... - 0 views

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    Association of low 25-hydroxyvitamin D concentrations with elevated parathyroid hormone concentrations and low cortical bone density in early pubertal and prepubertal Finnish girls.
    Cheng S, Tylavsky F, Kröger H, Kärkkäinen M, Lyytikäinen A, Koistinen A, Mahonen A, Alen M, Halleen J, Väänänen K, Lamberg-Allardt C.
    Am J Clin Nutr. 2003 Sep;78(3):485-92. Erratum in: Am J Clin Nutr. 2006 Jan;83(1):174.
    PMID: 12936933

    CONCLUSIONS: Vitamin D-deficient girls have low cortical BMD and high iPTH concentrations, which are consistent with secondary hyperparathyroidism. A low vitamin D concentration accompanied by high bone resorption (TRAP 5b) may limit the accretion of bone mass in young girls.
Matti Narkia

Low serum 25-hydroxyvitamin D concentrations and secondary hyperparathyroidism in middl... - 0 views

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    Low serum 25-hydroxyvitamin D concentrations and secondary hyperparathyroidism in middle-aged white strict vegetarians.
    Lamberg-Allardt C, Kärkkäinen M, Seppänen R, Biström H.
    Am J Clin Nutr. 1993 Nov;58(5):684-9.
    PMID: 8237875

    In conclusion, white strict vegetarians are at risk of vitamin D deficiency, at least in the winter, primarily because of a low dietary vitamin D intake, despite a normal sunlight exposure in summer. Low serum 25(OH)D concentrations are accompanied by high S-iPTH concentrations, which also are affected by a low calcium intake. The effect of these changes on bone health remains to be evaluated.
Matti Narkia

A high prevalence of hypovitaminosis D in Finnish medical in- and outpatients. - J Inte... - 0 views

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    A high prevalence of hypovitaminosis D in Finnish medical in- and outpatients.
    Kauppinen-Mäkelin R, Tähtelä R, Löyttyniemi E, Kärkkäinen J, Välimäki MJ.
    J Intern Med. 2001 Jun;249(6):559-63.
    PMID: 11422663
    DOI: 10.1046/j.1365-2796.2001.00847.x

    CONCLUSION: Hypovitaminosis D is very common amongst Finnish in- and outpatients in both sexes, causing secondary hyperparathyroidism in females. More extensive studies are warranted to elucidate the vitamin D status of the Finnish population.
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