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Matti Narkia

Plasma Vitamin D and 25OHD Responses of Young and Old Men to Supplementation with Vitam... - 0 views

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    Plasma vitamin D and 25OHD responses of young and old men to supplementation with vitamin D3.
    Harris SS, Dawson-Hughes B.
    J Am Coll Nutr. 2002 Aug;21(4):357-62.
    PMID: 12166534

    Conclusions: There appears to be no age-related impairment among men in the absorption or metabolism of 20 µg/day of vitamin D3 taken orally for at least eight weeks.
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
Matti Narkia

Response -- Schwalfenberg 53 (9): 1435 -- Canadian Family Physician - 0 views

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    Vitamin D supplementation.
    Eveleigh B.
    Can Fam Physician. 2007 Sep;53(9):1435; author reply 1435.
    PMID: 17872869

    My concern regarding vitamin D2 is that it is a synthetic analogue and might interact with the vitamin D receptor differently in various cell systems. It has been reported that vitamin D3 might improve glycemic control.7 Vitamin D2 has been reported to cause worsening of glycemic control in people of East Indian descent.8 Is this because of vitamin D receptor polymorphism, or because of enhanced 24-hydroxylase enzyme activation, or is it due to how vitamin D2 interacts with the receptor? Until this has been sorted out, I feel safest using vitamin D3. There are about 2000 synthetic analogues of vitamin D. The search is on for one that can cross the blood-brain barrier to treat certain types of brain cancers without causing hypercalcemia.9 But then again, what other effects would this compound have? There are still so many unknowns
Matti Narkia

Review: vitamin D, immunity and lupus. - Lupus. 2008 - 0 views

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    Review: vitamin D, immunity and lupus.
    Cutolo M, Otsa K.
    Lupus. 2008;17(1):6-10. Review.
    PMID: 18089676
    DOI: 10.1177/0961203307085879
Matti Narkia

Vitamin D3-Triggered Antimicrobial Response--Another Pleiotropic Effect beyond Mineral ... - 0 views

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    P.T. Liu, S. Stenger, H. Li, L. Wenzel, B.H. Tan, S.R. Krutzik, M.T. Ochoa, J. Schauber, K. Wu, C. Meinken, et al.\nVitamin D3-Triggered Antimicrobial Response--Another Pleiotropic Effect beyond Mineral and Bone Metabolism: Toll-Like Receptor Triggering of a Vitamin D-Mediated Human Antimicrobial Response. Science 311: 1770-1773, 2006\nJ. Am. Soc. Nephrol., November 1, 2006; 17(11): 2949 - 2953.
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