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Matti Narkia

Bread Fortified with Cholecalciferol Increases the Serum 25-Hydroxyvitamin D Concentrat... - 0 views

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    Bread fortified with cholecalciferol increases the serum 25-hydroxyvitamin D concentration in women as effectively as a cholecalciferol supplement.
    Natri AM, Salo P, Vikstedt T, Palssa A, Huttunen M, Kärkkäinen MU, Salovaara H, Piironen V, Jakobsen J, Lamberg-Allardt CJ.
    J Nutr. 2006 Jan;136(1):123-7.
    PMID: 16365070

    Both fortified breads increased serum 25-hydroxyvitamin D concentration as effectively as the cholecalciferol supplement. Supplementation or fortification did not affect serum intact parathyroid hormone concentration or urinary calcium excretion. In conclusion, fortified bread is a safe and feasible way to improve vitamin D nutrition.
Matti Narkia

Vitamin D supplementation reduces insulin resistance in South Asian women living in New... - 0 views

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    Vitamin D supplementation reduces insulin resistance in South Asian women living in New Zealand who are insulin resistant and vitamin D deficient - a randomised, placebo-controlled trial.
    von Hurst PR, Stonehouse W, Coad J.
    Br J Nutr. 2009 Sep 28:1-7. [Epub ahead of print]
    PMID: 19781131

    In conclusion, improving vitamin D status in insulin resistant women resulted in improved IR and sensitivity, but no change in insulin secretion. Optimal vitamin D concentrations for reducing IR were shown to be 80-119 nmol/l, providing further evidence for an increase in the recommended adequate levels. Registered Trial No. ACTRN12607000642482.
Matti Narkia

Long-term vitamin D3 supplementation may have adverse effects on serum lipids during po... - 0 views

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    Long-term vitamin D3 supplementation may have adverse effects on serum lipids during postmenopausal hormone replacement therapy.
    Heikkinen AM, Tuppurainen MT, Niskanen L, Komulainen M, Penttilä I, Saarikoski S.
    Eur J Endocrinol. 1997 Nov;137(5):495-502.
    PMID: 9405029

    CONCLUSIONS: Our results confirm the positive long-term effect of HRT with sequential estradiol valerate and cyproterone acetate on serum lipid concentrations. In addition, the results suggest that vitamin D3 supplementation may have unfavorable effects on lipids in postmenopausal women. Pure vitamin D3 treatment was associated with increased serum LDL cholesterol. Furthermore, the beneficial effects of HRT on serum LDL cholesterol content were reduced when estradiol valerate was combined with vitamin D3. However, the relevance of these associations to cardiovascular morbidity remains to be established.
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 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

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.
Matti Narkia

Can vitamin D supplementation prevent winter-time blues? A randomised trial among older... - 0 views

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    Can vitamin D supplementation prevent winter-time blues? A randomised trial among older women.
    Dumville JC, Miles JN, Porthouse J, Cockayne S, Saxon L, King C.
    J Nutr Health Aging. 2006 Mar-Apr;10(2):151-3.
    PMID: 16554952

    CONCLUSIONS: Supplementing elderly women with 800 IU of vitamin D daily did not lead to an improvement in mental health scores.
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

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.
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

The same annual dose of 292 000 IU of vitamin D(3) (cholecalciferol) on either daily or... - 0 views

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    The same annual dose of 292 000 IU of vitamin D(3) (cholecalciferol) on either daily or four monthly basis for elderly women: 1-year comparative study of the effects on serum 25(OH)D(3) concentrations and renal function.
    Pekkarinen T, Välimäki VV, Aarum S, Turpeinen U, Hämäläinen E, Löyttyniemi E, Välimäki MJ.
    Clin Endocrinol (Oxf). 2009 May 25. [Epub ahead of print]
    PMID: 19486025
    DOI: 10.1111/j.1365-2265.2009.03637.x
Matti Narkia

Supplements of 20 microg/d cholecalciferol optimized serum 25-hydroxyvitamin D concentr... - 0 views

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    Supplements of 20 microg/d cholecalciferol optimized serum 25-hydroxyvitamin D concentrations in 80% of premenopausal women in winter.\nNelson ML, Blum JM, Hollis BW, Rosen C, Sullivan SS.\nJ Nutr. 2009 Mar;139(3):540-6. Epub 2009 Jan 21.\nPMID: 19158226
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