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Matti Narkia

Vitamin D for cancer prevention: global perspective. Garland CF et al. -Ann Epidemiol. ... - 2 views

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    Vitamin D for cancer prevention: global perspective.
    Garland CF, Gorham ED, Mohr SB, Garland FC.
    Ann Epidemiol. 2009 Jul;19(7):468-83. Review.
    PMID: 19523595
Matti Narkia

Calbindin - Wikipedia, the free encyclopedia - 0 views

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    "Calbindin describes calcium binding proteins first described as the vitamin D-dependent calcium binding proteins in intestine and kidney."
Matti Narkia

The Effect of Vitamin D2 and Vitamin D3 on Intestinal Calcium Absorption in Nigerian Ch... - 0 views

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    The effect of vitamin D2 and vitamin D3 on intestinal calcium absorption in Nigerian children with rickets.
    Thacher TD, Obadofin MO, O'Brien KO, Abrams SA.
    J Clin Endocrinol Metab. 2009 Sep;94(9):3314-21. Epub 2009 Jun 30.
    PMID: 19567516

    Conclusions: Despite similar increases in 25-hydroxyvitamin D and 1,25-dihydroxyvitamin D with vitamin D2 or vitamin D3, fractional calcium absorption did not increase, indicating that rickets in Nigerian children is not primarily due to vitamin D-deficient calcium malabsorption
Matti Narkia

Is a lower dose of vitamin D supplementation enough to increase 25(OH)D status in a sun... - 0 views

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    Is a lower dose of vitamin D supplementation enough to increase 25(OH)D status in a sunny country?
    Pignotti GA, Genaro PS, Pinheiro MM, Szejnfeld VL, Martini LA.
    Eur J Nutr. 2009 Nov 28. [Epub ahead of print]
    PMID: 19946776

    CONCLUSION: The dose given (400 IU/day) was not enough to achieve 25(OH)D concentration, considered optimal for bone health.
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

High doses of vitamin D could cut relapse rate among MS sufferers - Times Online - 0 views

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    "Powerful new evidence about the ability of vitamin D to stem a wide range of diseases has brought the prospect of a nationwide programme to prescribe it in Scotland as a dietary supplement significantly closer.

    Reports at the weekend suggested that experts were increasingly convinced that the so-called sunshine drug - whose significance was first revealed in detail by The Times last year - could make a difference to the country's appalling health record.

    New research suggests that high doses of vitamin D could dramatically cut the relapse rate in people with multiple sclerosis. According to scientists in Canada, more than a third of sufferers taking high levels of supplement
Matti Narkia

Safety of vitamin D3 in adults with multiple sclerosis -- Kimball et al. 86 (3): 645 --... - 0 views

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    Safety of vitamin D3 in adults with multiple sclerosis.
    Kimball SM, Ursell MR, O'Connor P, Vieth R.
    Am J Clin Nutr. 2007 Sep;86(3):645-51.
    PMID: 17823429

    Conclusions: Patients' serum 25(OH)D concentrations reached twice the top of the physiologic range without eliciting hypercalcemia or hypercalciuria. The data support the feasibility of pharmacologic doses of vitamin D3 for clinical research, and they provide objective evidence that vitamin D intake beyond the current upper limit is safe by a large margin.
Matti Narkia

Vitamin D and MS: Burton - 0 views

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    "Dr. Jodie Burton is the acting principal investigator (PI) of the dose-escalation trial of oral vitamin D3 with calcium supplementation in patients with multiple sclerosis with Dr. O'Connor. She started the trial as his fellow, while doing an additional 2 years of training in MS specifically after she received her neurology certification. She completed her fellowship training in 2007. Now she is staff doing clinical research and continuing with the vitamin D trial. As of August 2009, she will be Assistant Professor in Neurology in the Department of Clinical Neuroscience in Calgary and at the University of Calgary. She will be part of the MS team there with Dr. Luanne Metz and the MS group.

    Please scroll down for an abstract of the trial:
    A Phase I/II dose-escalation trial of oral vitamin D3 with calcium supplementation in patients with multiple sclerosis."

    Conclusions:
    High-dose VD3 (~10 000 IU/day, possibly higher) in MS is safe and tolerable, with evidence of clinical improvement."
Matti Narkia

High Doses of Vitamin D Cut MS Relapses - 0 views

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    "April 28, 2009 (Seattle) -- High doses of vitamin D dramatically cut the relapse rate in people with multiple sclerosis, a study shows.

    Sixteen percent of 25 people with multiple sclerosis (MS) given an average of 14,000 international units (IU) of vitamin D a day for a year suffered relapses, says Jodie Burton, MD, a neurologist at the University of Toronto. In contrast, close to 40% of 24 MS patients who took an average of 1,000 IU a day -- the amount recommended by many MS specialists -- relapsed, she says.

    Also, people taking high-dose vitamin D suffered 41% fewer relapses than the year before the study began, compared with 17% of those taking typical doses.

    People taking high doses of vitamin D did not suffer any significant side effects, Burton tells WebMD."
Matti Narkia

Meta-analysis of vitamin D, calcium and the prevention of breast cancer. - [Breast Canc... - 0 views

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    Meta-analysis of vitamin D, calcium and the prevention of breast cancer.
    Chen P, Hu P, Xie D, Qin Y, Wang F, Wang H.
    Breast Cancer Res Treat. 2009 Oct 23. [Epub ahead of print]
    PMID: 19851861

    These results provide strong evidence that vitamin D and calcium have a chemopreventive effect against breast cancer.
Matti Narkia

Calcium and vitamin D intakes may be positively associated with brain lesions in depres... - 0 views

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    Calcium and vitamin D intakes may be positively associated with brain lesions in depressed and nondepressed elders.
    Payne ME, Anderson JJ, Steffens DC.
    Nutr Res. 2008 May;28(5):285-92.
    PMID: 19083421
    doi: 10.1016/j.nutres.2008.02.013

    In conclusion, calcium and vitamin D consumption were associated with brain lesions in elderly subjects even after controlling for potentially explanatory variables. These associations may be due to vascular calcification or other mechanism. The possibility of adverse effects of high intakes of calcium and vitamin D needs to be further explored in longitudinal studies of elderly subjects.
Matti Narkia

Vitamin D and Calcium in Sarcoidosis - 0 views

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    A Review - Vitamin D and Calcium in Sarcoidosis\nTrevor G Marshall, PhD, 5 July 2003
Matti Narkia

Calcium, Dairy Foods, Vitamin D, and Colorectal Cancer Risk: The Fukuoka Colorectal Can... - 0 views

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    Calcium, dairy foods, vitamin D, and colorectal cancer risk: the Fukuoka Colorectal Cancer Study.
    Mizoue T, Kimura Y, Toyomura K, Nagano J, Kono S, Mibu R, Tanaka M, Kakeji Y, Maehara Y, Okamura T, Ikejiri K, Futami K, Yasunami Y, Maekawa T, Takenaka K, Ichimiya H, Imaizumi N.
    Cancer Epidemiol Biomarkers Prev. 2008 Oct;17(10):2800-7.
    PMID: 18843026
Matti Narkia

Warding Off Cancer: Is It All in the D-livery? - Women's Health - 0 views

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    Comment: The strengths of this randomized study include its high level of adherence and its use of a vitamin D dose sufficient to cause a biologically meaningful increase in serum levels. The adult daily value for vitamin D is 400 IU, but many U.S. women are vitamin-D-deficient (N Engl J Med 2007; 357:266). The Institute of Medicine considers doses up to 2000 IU to be without significant risk for adverse health effects. In addition to consuming dietary sources of vitamin D (see Table 1), most women will need supplements to achieve adequate intake. Multivitamins usually contain 400 IU of vitamin D.
Matti Narkia

Calcium Plus Vitamin D Supplementation and the Risk of Breast Cancer -- Chlebowski et a... - 0 views

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    Calcium plus vitamin D supplementation and the risk of breast cancer.
    Chlebowski RT, Johnson KC, Kooperberg C, Pettinger M, Wactawski-Wende J, Rohan T, Rossouw J, Lane D, O'Sullivan MJ, Yasmeen S, Hiatt RA, Shikany JM, Vitolins M, Khandekar J, Hubbell FA; Women's Health Initiative Investigators.
    J Natl Cancer Inst. 2008 Nov 19;100(22):1581-91. Epub 2008 Nov 11.
    PMID: 19001601
Matti Narkia

Calcium, Vitamin D and Cancer - Anticancer Research - 0 views

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    Calcium, vitamin D and cancer.
    Peterlik M, Grant WB, Cross HS.
    Anticancer Res. 2009 Sep;29(9):3687-98. Review.
    PMID: 19667166
Matti Narkia

Overview of general physiologic features and functions of vitamin D -- DeLuca 80 (6): 1... - 0 views

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    Overview of general physiologic features and functions of vitamin D.
    DeLuca HF.
    Am J Clin Nutr. 2004 Dec;80(6 Suppl):1689S-96S. Review.
    PMID: 15585789
Matti Narkia

Calcium and vitamin d supplementation decreases incidence of stress fractures in female... - 0 views

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    Calcium and vitamin d supplementation decreases incidence of stress fractures in female navy recruits.
    Lappe J, Cullen D, Haynatzki G, Recker R, Ahlf R, Thompson K.
    J Bone Miner Res. 2008 May;23(5):741-9.
    PMID: 18433305
    doi: 10.1359/jbmr.080102

    Conclusions: Generalizing the findings to the population of 14,416 women who entered basic training at the Great Lakes during the 24 mo of recruitment, calcium and vitamin D supplementation for the entire cohort would have prevented 187 persons from fracturing. Such a decrease in SFx would be associated with a significant decrease in morbidity and financial costs.
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

NEJM -- Vitamin D3 and calcium to prevent hip fractures in the elderly women - 0 views

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    Vitamin D3 and calcium to prevent hip fractures in the elderly women.
    Chapuy MC, Arlot ME, Duboeuf F, Brun J, Crouzet B, Arnaud S, Delmas PD, Meunier PJ.
    N Engl J Med. 1992 Dec 3;327(23):1637-42.
    PMID: 1331788

    CONCLUSIONS. Supplementation with vitamin D3 and calcium reduces the risk of hip fractures and other nonvertebral fractures among elderly women.
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