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in title, tags, annotations or urlVitamin K2: An update - Heart Scan Resource Center - Track Your Plaque - 0 views
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Deficiency of K2 in both mice and humans is associated with coronary calcification; low vitamin K2 levels are associated with increased activity of Gla matrix protein, an enzyme that causes calcium deposition in artery walls. People who take warfarin (Coumadin®), a potent blocker of vitamin K2, experience more arterial and heart valve calcification. The 2004 Rotterdam Heart Study was the experience that really brought this concept closer to our interests. This well-conducted study of 4800 Dutch demonstrated an association of vitamin K2 intake with 57% reduction in cardiovascular events and lesser degrees of aortic calcification (another surrogate for atherosclerosis). Benefit appeared to be associated with a daily K2 intake of 32.7 micrograms per day (Geleijnse JM et al 2004). An important corollary of this study is that it suggests that a vitamin K2-mediated reduction in coronary calcification is accompanied by reduced likelihood of heart attack and other events.
The Heart Scan Blog: Unique vitamin D observations - 0 views
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It seems not a single day passes that I don't learn something new about this unique hormone (mis)named "vitamin D." \nFrom its humble beginnings recognized only as the factor responsible for bone maturation (with deficiency leading to childhood rickets), vitamin D now commands a recognized role in almost every conceivable aspect of health and disease. \n
The Heart Scan Blog: "High-dose" Vitamin D - 0 views
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I stumbled on one of the growing number of local media stories on the power of vitamin D. \nIn one story, a purported "expert" was talking about the benefits of "high-dose" vitamin D, meaning up to 1000, even 2000 units per day. \nI regard this as high-dose---for an infant. \nJudging by my experiences, now numbering well over 1000 patients over three years time, I'd regard this dose range not as "high dose," nor moderate dose, perhaps not even low dose. I'd regard it as barely adequate.
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