Ecological studies of ultraviolet B, vitamin D and cancer since 2000.
Grant WB, Mohr SB.
Ann Epidemiol. 2009 Jul;19(7):446-54. Epub 2009 Mar 9.
PMID: 19269856
CONCLUSION: These findings provide strong evidence that vitamin D status plays an important role in controlling the outcome of cancer. Support for the UVB-vitamin D-cancer theory is now scientifically strong enough to warrant use of vitamin D in cancer prevention, and as a component of treatment. More research studies would help to explore whether there are benefits beyond the substantial effects that have been observed.
Vitamin D Status and the Risk of Cardiovascular Disease Death.
Kilkkinen A, Knekt P, Aro A, Rissanen H, Marniemi J, Heliövaara M, Impivaara O, Reunanen A.
Am J Epidemiol. 2009 Sep 17. [Epub ahead of print]
PMID: 19762371
doi:10.1093/aje/kwp227
A low vitamin D level may be associated with higher risk of a fatal CVD event, particularly cerebrovascular death. These findings need to be replicated in other populations. To demonstrate a causal link between vitamin D and CVD, randomized controlled trials are required.
Ät extra D-vitamin och förläng livet. Tillskott minskar risken för att dö i alla sjukdomar med åtta procent, visar en stor internationell studie. Ledande forskare efterlyser nu en internationell debatt om berikning av mat och en försiktig omvärdering av vår restriktiva syn på solbad.
Det är forskare vid WHO:s internationella institut för cancerforskning i Lyon, IARC, som gått igenom 18 stora studier kring D-vitamin som publicerats fram till november 2006. Sammanlagt ingick 57311 personer som i genomsnitt följdes i nästan sex år. Under perioden avled 4777 av dem.
När forskarnas slog ihop alla olika dödsorsaker upptäckte de att den totala dödligheten var åtta procent mindre bland dem som regelbundet åt extra D-vitamin. Tillskotten låg mellan 300 och 2000 internationella enheter, IU, men var i medeltal på en nivå som är normal i vanliga vitamintabletter, närmare bestämt 528 IU.
Association between serum 25(OH)D and death from prostate cancer.
Tretli S, Hernes E, Berg JP, Hestvik UE, Robsahm TE.
Br J Cancer. 2009 Feb 10;100(3):450-4. Epub 2009 Jan 20.
PMID: 19156140
doi:10.1038/sj.bjc.6604865
The serum level of 25(OH)D may be involved in disease progression and is a potential marker of prognosis in patients with prostate cancer.
Prospective study of predictors of vitamin D status and survival in patients with colorectal cancer
K Ng, B M Wolpin, J A Meyerhardt, K Wu, A T Chan, B W Hollis, E L Giovannucci, M J Stampfer, W C Willett and C S Fuchs
Br J Cancer 101: 916-923; advance online publication, August 18, 2009; doi:10.1038/sj.bjc.6605262
Vitamin D is associated with improved survival in early-stage non-small cell lung cancer patients.
Zhou W, Suk R, Liu G, Park S, Neuberg DS, Wain JC, Lynch TJ, Giovannucci E, Christiani DC.
Cancer Epidemiol Biomarkers Prev. 2005 Oct;14(10):2303-9.
PMID: 16214909
In conclusion, the joint effects of surgery season and recent vitamin D intake seem to be associated with the survival of early-stage non-small cell lung cancer patients.
Prognostic effects of 25-hydroxyvitamin D levels in early breast cancer.
Goodwin PJ, Ennis M, Pritchard KI, Koo J, Hood N.
J Clin Oncol. 2009 Aug 10;27(23):3757-63. Epub 2009 May 18.
PMID: 19451439
DOI: 10.1200/JCO.2008.20.0725
Conclusion Vitamin D deficiency may be associated with poor outcomes in breast cancer.
Circulating 25-hydroxyvitamin d levels and survival in patients with colorectal cancer.
Ng K, Meyerhardt JA, Wu K, Feskanich D, Hollis BW, Giovannucci EL, Fuchs CS.
J Clin Oncol. 2008 Jun 20;26(18):2984-91.
PMID: 18565885
DOI: 10.1200/JCO.2007.15.1027
Conclusion Among patients with colorectal cancer, higher prediagnosis plasma 25(OH)D levels were associated with a significant improvement in overall survival. Further study of the vitamin D pathway and its influence on colorectal carcinogenesis and cancer progression is warranted.
Vitamin D protects bone, preserves muscle strength, and regulates cell growth and energy metabolism. It also offers some protection against cancer and other disease, but are these effects really important for health and life expectancy? The answer seems to be a resounding yes.
Ecological Studies Of Ultraviolet B, Vitamin D And Cancer Since 2000.
Grant WB, Mohr SB.
Ann Epidemiol. 2009 Mar 6. [Epub ahead of print]
PMID: 19269856
doi:10.1016/j.annepidem.2008.12.014
Demographic differences and trends of vitamin D insufficiency in the US population, 1988-2004.
Ginde AA, Liu MC, Camargo CA Jr.
Arch Intern Med. 2009 Mar 23;169(6):626-32.
PMID: 19307527
Conclusions National data demonstrate a marked decrease in serum 25(OH)D levels from the 1988-1994 to the 2001-2004 NHANES data collections. Racial/ethnic differences have persisted and may have important implications for known health disparities. Current recommendations for vitamin D supplementation are inadequate to address the growing epidemic of vitamin D insufficiency.
Ecological Studies Of Ultraviolet B, Vitamin D And Cancer Since 2000.
Grant WB, Mohr SB.
Ann Epidemiol. 2009 Mar 6. [Epub ahead of print]
PMID: 19269856
Zittermann A, Schleithoff SS, Koerfer R. Putting cardiovascular disease and vitamin D insufficiency into perspective.Br J Nutr. 2005 Oct;94(4):483-92. Review.PMID: 16197570 [PubMed - indexed for MEDLINE]
A large number of new vitamin D studies have appeared in the scientific literature since I wrote my plea to the federal government. These studies don't just confirm what we knew 16 months ago-they show that optimizing vitamin D intake will save even more lives than what we projected.
Vitamin D More Effective Than Previously Known
For instance, a study published in June 2008 showed that men with low vitamin D levels suffer 2.42 times more heart attacks. Now look what this means in actual body counts.
Addressing the health benefits and risks, involving vitamin D or skin cancer, of increased sun exposure.\nMoan J, Porojnicu AC, Dahlback A, Setlow RB.\nProc Natl Acad Sci U S A. 2008 Jan 15;105(2):668-73. Epub 2008 Jan 7.\nPMID: 18180454
Scientists have long known that a lack of vitamin D can weaken our bones. A new study shows that low levels of this nutrient may also be linked to a higher chance of dying early from heart and circulation problems, as well as other causes.
Benefits of Vitamin D Supplementation
Joel M. Kauffman, Ph.D.
Journal of American Physicians and Surgeons
Volume 14 Number 2 - Summer 2009
Clinical trials show that vitamin D supplementation at higher
levels than previously recommended is beneficial for many
conditions. It decreases the frequency of falls and fractures, helps
prevent cardiovascular disease, and reduces symptoms of colds or
influenza. Benefits are also seen in diabetes mellitus, multiple
sclerosis, Crohn disease, pain, depression, and possibly autism.
Sunlight does not cause an overdose of vitamin D production,
and toxicity from supplementation is rare. Dose recommendations
are increasing, but appear to be lagging the favorable trial results. A
number of common drugs deplete vitamin D levels, and others may
limit its biosynthesis from sunlight.
People with adequate levels from sun exposure will not benefit
from supplementation. While dietary intake is helpful,
supplementation is better able to raise serum 25-hydroxyvitamin D ,
the major circulating metabolite, to the level now thought adequate,
30-50 ng/mL.
Where there is inadequate daily sun exposure, oral doses of
1,000-2,000 IU/d are now considered routine, with much higher
doses (up to 50,000 IU) for rapid repletion now considered safe.
"A new study suggests many Americans aren't getting anywhere nearly enough of the vitamin, and it may be affecting their heart health.
In the study, researchers looked at tens of thousands of healthy adults 50 and older whose vitamin D levels had been measured during routine checkups. A majority, they found, were deficient in the vitamin. About two-thirds had less vitamin D in their bloodstreams than the authors considered healthy, and many were extremely deficient.
Less than two years later, the researchers found, those who had extremely low levels of the vitamin were almost twice as likely to have died or suffered a stroke than those with adequate amounts. They also had more coronary artery disease and were twice as likely to have developed heart failure.
The findings, which are being presented today at an American Heart Association conference in Orlando, don't prove that lack of vitamin D causes heart disease; they only suggest a link between the two. "