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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 Deficiency in the Morbidly Obese. [Obes Surg. 1993] - PubMed result - 0 views

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    Vitamin D Deficiency in the Morbidly Obese.
    Buffington C, Walker B, Cowan GS Jr, Scruggs D.
    Obes Surg. 1993 Nov;3(4):421-424.
    PMID: 10757956

    These data suggest that low vitamin D may be associated with obesity per se. Hypovitaminosis D, when it is found in post-bariatric surgery patients, may not be caused by the surgery since it may have been present to some degree pre-operatively.
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

Low serum 25-hydroxyvitamin D concentrations are associated with greater all-cause mort... - 0 views

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    Low serum 25-hydroxyvitamin D concentrations are associated with greater all-cause mortality in older community-dwelling women.
    Semba RD, Houston DK, Ferrucci L, Cappola AR, Sun K, Guralnik JM, Fried LP.
    Nutr Res. 2009 Aug;29(8):525-30.
    PMID: 19761886
    doi:10.1016/j.nutres.2009.07.007

    Older community-dwelling women with low 25(OH)D levels are at an increased risk of death.
Matti Narkia

Association of vitamin D deficiency with cognitive impairment in older women. Cross-sec... - 0 views

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    Association of vitamin D deficiency with cognitive impairment in older women. Cross-sectional study.
    Annweiler C, Schott AM, Allali G, Bridenbaugh SA, Kressig RW, Allain P, Herrmann FR, Beauchet O.
    Neurology. 2009 Sep 30. [Epub ahead of print]
    PMID: 19794127
    doi:10.1212/WNL.0b013e3181beecd3

    Conclusions: 25-Hydroxyvitamin D deficiency was associated with cognitive impairment in this cohort of community-dwelling older women.
Matti Narkia

Vitamin D and depressive symptoms in women during the winter: A pilot study - Appl Nurs... - 0 views

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    Vitamin D and depressive symptoms in women during the winter: a pilot study.
    Shipowick CD, Moore CB, Corbett C, Bindler R.
    Appl Nurs Res. 2009 Aug;22(3):221-5.
    PMID: 19616172
    doi:10.1016/j.apnr.2007.08.001

    ESULTS: Vitamin D supplementation was associated not only with an increase in the serum D levels by an average of 27 ng/ml but also with a decline in the BDI-II scores of an average of 10 points. DISCUSSION: This study suggests that supplemental vitamin D3 reduces depressive symptoms.
Matti Narkia

Vitamin D association with estradiol and progesterone in young women - Cancer Causes Co... - 0 views

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    Vitamin D association with estradiol and progesterone in young women.
    Knight JA, Wong J, Blackmore KM, Raboud JM, Vieth R.
    Cancer Causes Control. 2009 Nov 15. [Epub ahead of print]
    PMID: 19916051

    Conclusions Higher levels of vitamin D may reduce progesterone and estradiol, providing a potential mechanism for reduction in breast cancer risk from increased vitamin D exposure in young women
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

Prevalence of low serum vitamin D concentration in an urban population of elderly women... - 0 views

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    Prevalence of low serum vitamin D concentration in an urban population of elderly women in Poland.
    Napiórkowska L, Budlewski T, Jakubas-Kwiatkowska W, Hamzy V, Gozdowski D, Franek E.
    Pol Arch Med Wewn. 2009 Nov;119(11):699-703.
    PMID: 19920793

    CONCLUSIONS: The prevalence of low vitamin D concentrations in an urban population of elderly women in Poland is very high. Lower vitamin D levels are associated with a higher PTH concentration
Matti Narkia

Vitamin D association with estradiol and progesterone in young women. - [Cancer Causes ... - 0 views

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    Vitamin D association with estradiol and progesterone in young women.
    Knight JA, Wong J, Blackmore KM, Raboud JM, Vieth R.
    Cancer Causes Control. 2009 Nov 15. [Epub ahead of print]
    PMID: 19916051

    CONCLUSIONS: Higher levels of vitamin D may reduce progesterone and estradiol, providing a potential mechanism for reduction in breast cancer risk from increased vitamin D exposure in young women.
Matti Narkia

Higher serum vitamin D concentrations are associated with longer leukocyte telomere len... - 0 views

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    Higher serum vitamin D concentrations are associated with longer leukocyte telomere length in women.
    Richards JB, Valdes AM, Gardner JP, Paximadas D, Kimura M, Nessa A, Lu X, Surdulescu GL, Swaminathan R, Spector TD, Aviv A.
    Am J Clin Nutr. 2007 Nov;86(5):1420-5.
    PMID: 17991655
Matti Narkia

Relationship between low ultraviolet B irradiance and higher breast cancer risk in 107 ... - 0 views

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    Relationship between low ultraviolet B irradiance and higher breast cancer risk in 107 countries.
    Mohr SB, Garland CF, Gorham ED, Grant WB, Garland FC.
    Breast J. 2008 May-Jun;14(3):255-60. Epub 2008 Apr 17.
    PMID: 18422861
    DOI: 10.1111/j.1524-4741.2008.00571.x

    There was a protective effect of UVB irradiance on risk of breast cancer that was independent of fertility rate, proportion of the population overweight, alcohol intake, animal energy intake, and other covariates.
Matti Narkia

Vitamin D intake is inversely associated with rheumatoid arthritis: results from the Io... - 0 views

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    Vitamin D intake is inversely associated with rheumatoid arthritis: results from the Iowa Women's Health Study.
    Merlino LA, Curtis J, Mikuls TR, Cerhan JR, Criswell LA, Saag KG; Iowa Women's Health Study.
    Arthritis Rheum. 2004 Jan;50(1):72-7.
    PMID: 14730601
    DOI: 10.1002/art.11434

    CONCLUSION: Greater intake of vitamin D may be associated with a lower risk of RA in older women, although this finding is hypothesis generating.
Matti Narkia

Incident Invasive Breast Cancer, Geographic Location of Residence, and Reported Average... - 0 views

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    ncident invasive breast cancer, geographic location of residence, and reported average time spent outside.
    Millen AE, Pettinger M, Freudenheim JL, Langer RD, Rosenberg CA,
    Mossavar-Rahmani Y, Duffy CM, Lane DS, McTiernan A, Kuller LH, Lopez AM, Wactawski-Wende J.
    Cancer Epidemiol Biomarkers Prev. 2009 Feb;18(2):495-507. Epub 2009 Feb 3.
    PMID: 19190147
    doi: 10.1158/1055-9965.EPI-08-0652

    In conclusion, region of residence and geographic solar irradiance are not consistently related to risk of breast cancer and may not be sufficient proxy measures for sunlight/vitamin D exposure. The observed association between time spent outside and breast cancer risk support the hypothesis that vitamin D may protect against breast cancer.
Matti Narkia

Association between Plasma 25-Hydroxyvitamin D and Breast Cancer Risk -- Crew et al. 2 ... - 0 views

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    Association between plasma 25-hydroxyvitamin D and breast cancer risk.
    Crew KD, Gammon MD, Steck SE, Hershman DL, Cremers S, Dworakowski E, Shane E, Terry MB, Desai M, Teitelbaum SL, Neugut AI, Santella RM.
    Cancer Prev Res (Phila Pa). 2009 Jun;2(6):598-604. Epub 2009 May 26.
    PMID: 19470790

    In summary, these results add to a growing body of evidence that adequate vitamin D stores may prevent breast cancer development. Whereas circulating 25-OHD levels of >32 ng/mL are associated with normal bone mineral metabolism, our data suggest that the optimal level for breast cancer prevention is ≥40 ng/mL. Well-designed clinical trials are urgently needed to determine whether vitamin D supplementation is effective for breast cancer chemoprevention.
Matti Narkia

Serum Levels of Vitamin D Metabolites and Breast Cancer Risk in the Prostate, Lung, Col... - 0 views

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    Serum levels of vitamin D metabolites and breast cancer risk in the prostate, lung, colorectal, and ovarian cancer screening trial.

    Freedman DM, Chang SC, Falk RT, Purdue MP, Huang WY, McCarty CA, Hollis BW, Graubard BI, Berg CD, Ziegler RG.
    Cancer Epidemiol Biomarkers Prev. 2008 Apr;17(4):889-94. Epub 2008 Apr 1.
    PMID: 18381472
    doi: 10.1158/1055-9965.EPI-07-2594

    In this prospective study of postmenopausal women, we did not observe an inverse association between circulating 25(OH)D or 1,25(OH)2D and breast cancer risk, although we cannot exclude an association in younger women or with long-term or earlier exposure
Matti Narkia

Plasma 25-Hydroxyvitamin D and 1,25-Dihydroxyvitamin D and Risk of Incident Ovarian Can... - 0 views

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    Plasma 25-hydroxyvitamin D and 1,25-dihydroxyvitamin D and risk of incident ovarian cancer.
    Tworoger SS, Lee IM, Buring JE, Rosner B, Hollis BW, Hankinson SE.
    Cancer Epidemiol Biomarkers Prev. 2007 Apr;16(4):783-8.
    PMID: 17416771
    doi: 10.1158/1055-9965.EPI-06-0981

    Overall, our results do not suggest that plasma vitamin D levels are associated with risk of ovarian cancer. However, we observed significant associations in some subgroups, which should be evaluated further in other studies because increasing vitamin D intake is an easy preventive measure to adopt.
Matti Narkia

Vitamin D From Dietary Intake and Sunlight Exposure and the Risk of Hormone-Receptor-De... - 0 views

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    Vitamin D from dietary intake and sunlight exposure and the risk of hormone-receptor-defined breast cancer.
    Blackmore KM, Lesosky M, Barnett H, Raboud JM, Vieth R, Knight JA.
    Am J Epidemiol. 2008 Oct 15;168(8):915-24. Epub 2008 Aug 27.
    PMID: 18756015
    doi:10.1093/aje/kwn198

    This study suggests that vitamin D is associated with a reduced risk of breast cancer regardless of ER/PR status of the tumor. Future studies with a larger number of receptor-negative and mixed tumors are required.
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.
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