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Matti Narkia

A phase 2 trial exploring the effects of high-dose (10,000 IU/day) vitamin D(3) in brea... - 0 views

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    A phase 2 trial exploring the effects of high-dose (10,000 IU/day) vitamin D(3) in breast cancer patients with bone metastases.
    Amir E, Simmons CE, Freedman OC, Dranitsaris G, Cole DE, Vieth R, Ooi WS, Clemons M.
    Cancer. 2009 Nov 13. [Epub ahead of print]
    PMID: 19918922
    DOI: 10.1002/cncr.24749

    METHODS:
    Patients with bone metastases treated with bisphosphonates were enrolled into this single-arm phase 2 study. Patients received 10,000 IU of vitamin D3 and 1000 mg of calcium supplementation each day for 4 months. The effect of this treatment on palliation, bone resorption markers, calcium metabolism, and toxicity were evaluated at baseline and monthly thereafter.


    CONCLUSIONS:
    Daily doses of 10,000 IU vitamin D3 for 4 months appear safe in patients without comorbid conditions causing hypersensitivity to vitamin D. Treatment reduced inappropriately elevated parathyroid hormone levels, presumably caused by long-term bisphosphonate use. There did not appear to be a significant palliative benefit nor any significant change in bone resorption. Cancer 2010. © 2009 American Cancer Society.
Matti Narkia

NEJM -- Calcium plus Vitamin D Supplementation and the Risk of Colorectal Cancer - 0 views

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    Calcium plus vitamin D supplementation and the risk of colorectal cancer.
    Wactawski-Wende J, Kotchen JM, Anderson GL, Assaf AR, Brunner RL, O'Sullivan MJ, Margolis KL, Ockene JK, Phillips L, Pottern L, Prentice RL, Robbins J, Rohan TE, Sarto GE, Sharma S, Stefanick ML, Van Horn L, Wallace RB, Whitlock E, Bassford T, Beresford SA, Black HR, Bonds DE, Brzyski RG, Caan B, Chlebowski RT, Cochrane B, Garland C, Gass M, Hays J, Heiss G, Hendrix SL, Howard BV, Hsia J, Hubbell FA, Jackson RD, Johnson KC, Judd H, Kooperberg CL, Kuller LH, LaCroix AZ, Lane DS, Langer RD, Lasser NL, Lewis CE, Limacher MC, Manson JE; Women's Health Initiative Investigators.
    N Engl J Med. 2006 Feb 16;354(7):684-96. Erratum in: N Engl J Med. 2006 Mar 9;354(10):1102.
    PMID: 16481636

    Conclusions Daily supplementation of calcium with vitamin D for seven years had no effect on the incidence of colorectal cancer among postmenopausal women. The long latency associated with the development of colorectal cancer, along with the seven-year duration of the trial, may have contributed to this null finding. Ongoing follow-up will assess the longer-term effect of this intervention.
Matti Narkia

Vitamin D and calcium supplementation reduces cancer risk: results of a randomized tria... - 0 views

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    Vitamin D and calcium supplementation reduces cancer risk: results of a randomized trial.
    Lappe JM, Travers-Gustafson D, Davies KM, Recker RR, Heaney RP.
    Am J Clin Nutr. 2007 Jun;85(6):1586-91. Erratum in: Am J Clin Nutr. 2008 Mar;87(3):794.
    PMID: 17556697

    Conclusions: Improving calcium and vitamin D nutritional status substantially reduces all-cancer risk in postmenopausal women.
Matti Narkia

High Prevalence of Vitamin D Deficiency Despite Supplementation in Premenopausal Women ... - 0 views

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    High prevalence of vitamin D deficiency despite supplementation in premenopausal women with breast cancer undergoing adjuvant chemotherapy.
    Crew KD, Shane E, Cremers S, McMahon DJ, Irani D, Hershman DL.
    J Clin Oncol. 2009 May 1;27(13):2151-6. Epub 2009 Apr 6.
    PMID: 19349547
    DOI: 10.1200/JCO.2008.19.6162

    Conclusion Vitamin D deficiency is highly prevalent in women with breast cancer. The current recommended dietary allowance of vitamin D is too low to increase serum 25-OHD greater than 30 ng/mL. Optimal dosing for bone health and, possibly, improved survival has yet to be determined.
Matti Narkia

Vitamin D and calcium supplementation reduces cancer risk: results of a randomized tria... - 0 views

  •  
    Lappe JM, Travers-Gustafson D, Davies KM, Recker RR, Heaney RP.
    Vitamin D and calcium supplementation reduces cancer risk: results of a randomized trial.
    Am J Clin Nutr. 2007 Jun;85(6):1586-91.
    PMID: 17556697 [PubMed - indexed for MEDLINE]
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