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Matti Narkia

Vitamin D Levels Linked to Breast-Cancer Prognosis - GrassrootsHealth | Vitamin D Action - 0 views

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    Women who are vitamin D deficient when they are diagnosed with breast cancer are more likely to have their disease spread and are more likely to die than women who have adequate vitamin D levels, new Canadian research says. The study found that women who were vitamin D deficient were 94 per cent more likely to have their cancer metastasize (spread) and 73 per cent more likely to die. The research was led by Dr. Pamela Goodwin, a breast cancer researcher at Mount Sinai Hospital in Toronto. The study analyzed blood samples and disease outcome from more than 500 women diagnosed with breast cancer between 1989 and 1995. Women were followed up for an average of 11 years.
Matti Narkia

Vitamin D Newsletter Mar 2006 | Dr. Wactawski-Wende, New England Journal of Medicine, a... - 0 views

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    "Good research is good for medicine. The only thing more important than good research is ethical research. The February 16th issue of the New England Journal of Medicine (NEJM) had a research paper on vitamin D and colon cancer. Was it good research? Was it ethical research? At stake are the lives of 36,000 older American women who agreed to participate in the Women's Health Initiative. "
Matti Narkia

Teenage girls and elderly women living in northern Europe have low winter vitamin D sta... - 0 views

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    Teenage girls and elderly women living in northern Europe have low winter vitamin D status. Andersen R, Mølgaard C, Skovgaard LT, Brot C, Cashman KD, Chabros E, Charzewska J, Flynn A, Jakobsen J, Kärkkäinen M, Kiely M, Lamberg-Allardt C, Moreiras O, Natri AM, O'brien M, Rogalska-Niedzwiedz M, Ovesen L. Eur J Clin Nutr. 2005 Apr;59(4):533-41. PMID: 15714215 doi:10.1038/sj.ejcn.1602108 CONCLUSION: Vitamin D status is low in northern Europe during winter. More than one-third of the adolescent girls have vitamin D status below 25 nmol/l and almost all are below 50 nmol/l. Two-thirds of the elderly community-dwelling women have vitamin D status below 50 nmol/l. Use of vitamin D supplements is a significant positive determinant for S-25OHD for both girls and women (P = 0.001). SPONSORSHIP: The European Fifth Framework Programme (Contract No. QLK1-CT-2000-00623)
Matti Narkia

Plasma 25-Hydroxyvitamin D Levels and Risk of Incident Hypertension Among Young Women -... - 0 views

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    Plasma 25-hydroxyvitamin D levels and risk of incident hypertension among young women. Forman JP, Curhan GC, Taylor EN. Hypertension. 2008 Nov;52(5):828-32. Epub 2008 Oct 6. PMID: 18838623 doi: 10.1161/HYPERTENSIONAHA.108.117630 Women in the lowest compared with highest quartile of plasma 25(OH)D had an adjusted odds ratio for incident hypertension of 1.66 (95% CI: 1.11 to 2.48; P for trend=0.01). Compared with women with sufficient levels, those with vitamin D deficiency (<30 ng/mL; 65.7% of the study population) had a multivariable odds ratio of 1.47 (95% CI: 1.10 to 1.97). Plasma 25(OH)D levels are inversely and independently associated with the risk of developing hypertension.
Matti Narkia

Healthy elderly French women living at home have secondary hyperparathyroidism and high... - 0 views

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    Healthy elderly French women living at home have secondary hyperparathyroidism and high bone turnover in winter. EPIDOS Study Group. Chapuy MC, Schott AM, Garnero P, Hans D, Delmas PD, Meunier PJ. J Clin Endocrinol Metab. 1996 Mar;81(3):1129-33. PMID: 8772587 These results show that vitamin D status of a French aged population in good health and living at home depends mainly on lifestyle. Like institutionalized women, old women living at home exhibit clear evidence of senile hyperparathyroidism in the winter, secondary in part to a reduced 25OHD level and associated with biological signs of increased bone turnover. The maintenance of PTH within the normal range for healthy adults by vitamin D and calcium treatment might constitute an approach for the prevention of bone loss in the entire
Matti Narkia

Vitamin D may curb diabetes - Pharmacy News - 0 views

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    A New Zealand study has found that South Asian women with insulin resistance improved markedly after taking vitamin D supplements Nutrition researcher Pamela von Hurst of the Institute of Food, Nutrition and Human Health at Albany, said while diet and exercise played a major part in the onset of type-2 diabetes, her findings reinforced the importance of vitamin D from the sun and supplements to prevent type-2 diabetes. Initial screening of 235 Auckland women from India, Pakistan and Sri Lanka aged 20 and older, revealed 47 per cent were insulin deficient and 84 per cent were vitamin D deficient. The 81 recruited for the study were split into two groups for a randomised controlled trial and given a vitamin D supplement or placebo. As well as an improvement in insulin resistance among those who took vitamin D for six months, Ms Von Hurst said post-menopausal women in the study also showed a reduced rate of bone breakdown.
Matti Narkia

Vitamin D can aid fertility - Telegraph - 0 views

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    "Women with fertility problems may benefit from taking vitamin D supplements, research has found. A study has found a link between low levels of Vitamin D and problems with ovulation. The research may offer a simple, cheap and safe option for women to try before resorting to drugs."
Matti Narkia

Plasma calcidiol, season, and serum parathyroid hormone concentrations in healthy elder... - 0 views

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    Plasma calcidiol, season, and serum parathyroid hormone concentrations in healthy elderly men and women. Dawson-Hughes B, Harris SS, Dallal GE. Am J Clin Nutr. 1997 Jan;65(1):67-71. PMID: 8988915 Plasma calcidiol and serum PTH concentrations were inversely related, with PTH rising slowly as calcidiol concentrations declined below 110 nmol/L (95 CI: 60, 168 nmol/L). More than 90% of the men and women had calcidiol concentrations below this value in the wintertime. The high prevalence of lower wintertime calcidiol values may increase risk of bone loss in elderly men and women.
Matti Narkia

Vitamin D Deficiency Related To Increased Inflammation In Healthy Women - 0 views

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    ScienceDaily (Apr. 8, 2009) - According to a recent study in the Archives of Internal Medicine, 75 percent of Americans do not get enough Vitamin D. Researchers have found that the deficiency may negatively impact immune function and cardiovascular health and increase cancer risk. Now, a University of Missouri nutritional sciences researcher has found that vitamin D deficiency is associated with inflammation, a negative response of the immune system, in healthy women.
Matti Narkia

Prevalence of Vitamin D Inadequacy among Postmenopausal North American Women Receiving ... - 0 views

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    Prevalence of Vitamin D inadequacy among postmenopausal North American women receiving osteoporosis therapy. Holick MF, Siris ES, Binkley N, Beard MK, Khan A, Katzer JT, Petruschke RA, Chen E, de Papp AE. J Clin Endocrinol Metab. 2005 Jun;90(6):3215-24. Epub 2005 Mar 29. PMID: 15797954 doi:10.1210/jc.2004-2364 Conclusions: More than half of North American women receiving therapy to treat or prevent osteoporosis have vitamin D inadequacy, underscoring the need for improved physician and public education regarding optimization of vitamin D status in this population.
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

Wintertime vitamin D insufficiency is common in young Canadian women, and their vitamin... - 0 views

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    Wintertime vitamin D insufficiency is common in young Canadian women, and their vitamin D intake does not prevent it. Vieth R, Cole DE, Hawker GA, Trang HM, Rubin LA. Eur J Clin Nutr. 2001 Dec;55(12):1091-7. PMID: 11781676 INTERPRETATION: The self-reported vitamin D intake from milk and/or multivitamins does not relate to prevention of low vitamin D nutritional status of young women in winter. Recommended vitamin D intakes are too small to prevent insufficiency. Vitamin D nutrition can only be assessed by measuring serum 25(OH)D concentration.
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

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 -- 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

25(OH)D Serum Levels Decline With Age Earlier in Women Than in Men and Less Efficiently... - 0 views

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    25(OH)D Serum levels decline with age earlier in women than in men and less efficiently prevent compensatory hyperparathyroidism in older adults. Maggio D, Cherubini A, Lauretani F, Russo RC, Bartali B, Pierandrei M, Ruggiero C, Macchiarulo MC, Giorgino R, Minisola S, Ferrucci L. J Gerontol A Biol Sci Med Sci. 2005 Nov;60(11):1414-9. PMID: 16339327 Conclusions. These findings suggest that the age-associated fall of serum 25(OH)D starts earlier in women than in men and that higher levels of 25(OH)D are required in older compared to younger persons to avoid the age-associated compensatory hyperparathyroidism.
Matti Narkia

Serum tumor necrosis factor-alpha concentrations are negatively correlated with serum 2... - 0 views

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    Serum tumor necrosis factor-alpha concentrations are negatively correlated with serum 25(OH)D concentrations in healthy women. Peterson CA, Heffernan ME. J Inflamm (Lond). 2008 Jul 24;5:10. PMID: 18652680 doi:10.1186/1476-9255-5-10 Conclusion Serum 25(OH)D status is inversely related to TNF-α concentrations in healthy women, which may in part explain this vitamin's role in the prevention and treatment of inflammatory diseases. Results gleaned from this investigation also support the need to re-examine the biological basis for determining optimal vitamin D status.
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

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.
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