Prevalence of vitamin d insufficiency in patients with Parkinson disease and Alzheimer disease.\nEvatt ML, Delong MR, Khazai N, Rosen A, Triche S, Tangpricha V.\nArch Neurol. 2008 Oct;65(10):1348-52.\nPMID: 18852350
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
A nested case control study of plasma 25-hydroxyvitamin D concentrations and risk of colorectal cancer.
Wu K, Feskanich D, Fuchs CS, Willett WC, Hollis BW, Giovannucci EL.
J Natl Cancer Inst. 2007 Jul 18;99(14):1120-9. Epub 2007 Jul 10.
PMID: 17623801
Vitamin d and its role in cancer and immunity: a prescription for sunlight.
Mullin GE, Dobs A.
Nutr Clin Pract. 2007 Jun;22(3):305-22. Review.
PMID: 17507731
(free full text PDF available)
Association between vitamin D and age-related macular degeneration in the Third National Health and Nutrition Examination Survey, 1988 through 1994.
Parekh N, Chappell RJ, Millen AE, Albert DM, Mares JA.
Arch Ophthalmol. 2007 May;125(5):661-9.
PMID: 17502506
Serum 25-hydroxyvitamin D levels and risk of multiple sclerosis.
Munger KL, Levin LI, Hollis BW, Howard NS, Ascherio A.
JAMA. 2006 Dec 20;296(23):2832-8.
PMID: 17179460
Vitamin K has been known as the coagulation vitamin, because of its role in the blood-clotting process. However, research over the last few decades has shown that the role of K Vitamins - and natural Vitamin K2, the menaquinones, in particular - has been greatly expanded. Of note, K Vitamins activity outside the liver is required for calcium utilization, the key factor in maintaining both bone and cardiovascular health.\n\nVitamin K2 helps to activate vitamin K-dependent proteins responsible for healthy tissues. In bone, it activates osteocalcin, a protein required to bind calcium to the mineral matrix, thus strengthening the skeleton. In circulation, Vitamin K2 participates in carboxylation of Matrix Gla Protein (MGP), the most potent inhibitor of arterial calcification known, lowering the risk of vascular damage.
The vitamin K dependant protein osteocalcin may have a positive effect on reducing obesity and diabetes, suggests a new study with mice.\nResearchers writing in the journal Cells studied the effect bone cells have in energy regulation, and found that osteocalcin plays a key role in regulating insulin activity.
Vitamin K is a fat-soluble vitamin. The "K" is derived from the German word "koagulation." Coagulation refers to the process of blood clot formation. Vitamin K is essential for the functioning of several proteins involved in blood clotting (1). There are two naturally occurring forms of vitamin K
Association of vitamin D deficiency with heart failure and sudden cardiac death in a large cross-sectional study of patients referred for coronary angiography.\nPilz S, März W, Wellnitz B, Seelhorst U, Fahrleitner-Pammer A, Dimai HP, Boehm BO, Dobnig H.\nJ Clin Endocrinol Metab. 2008 Oct;93(10):3927-35. Epub 2008 Aug 5.\nPMID: 18682515
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.
High prevalence of vitamin D inadequacy and implications for health.\nHolick MF.\nMayo Clin Proc. 2006 Mar;81(3):353-73. Review.\nPMID: 16529140 \ndoi: 10.4065/81.3.353\n
Association Between Serum 25-Hydroxyvitamin D Level and Upper Respiratory Tract Infection. \nAdit A. Ginde, MD, MPH; Jonathan M. Mansbach, MD; Carlos A. Camargo Jr, MD, DrPH . \nArch Intern Med. 2009;169(4):384-390\n
This web site is dedicated to vitamin D and cancer. This is because exciting new research indicates that vitamin D-whether produced in the skin as a result of exposure to ultraviolet radiation (from sunlight or sun lamps) or obtained from supplementation with cholecalciferol (vitamin D3)-may help cancer patients. However, the research is far from complete.