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Pastimes : Heart Attacks, Cancer and strokes. Preventative approaches
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To: LindyBill who wrote (5173)5/21/2009 1:05:14 AM
From: freelyhovering  Read Replies (1) of 39292
 
Vitamin K:
But then again, there is this study that gives different results from Vitamin K supplementation. Why the different results?

springerlink.com

Abstract
Background Cardiovascular disease is the major cause of death in the Western world, but some recent studies indicate that vitamin K may play a role in atherosclerosis protection.
Aim of study The aim of this study was to evaluate the effect of phylloquinone supplementation on blood lipids, inflammatory markers and fibrinolytic activity in postmenopausal women.
Methods Thirty-one postmenopausal women completed this placebo-controlled, randomized crossover study and received 500 µg phylloquinone or placebo in addition to their habitual diet during two periods of 6 weeks’ duration. Blood concentration of lipids, inflammatory markers and fibrinolytic parameters were measured after each period.
Results Inflammatory markers, fibrinolytic parameters, total cholesterol and LDL-C were unaffected by the supplementation, whereas a 15% increase was seen in triacylglycerols (P = 0.015) and a 5% decrease in HDL-C (P = 0.06).
Conclusions Six weeks supplementation with a dose of phylloquinone similar to that obtainable from the diet induced a deterioration of the lipid profile with no improvement in any of the other risk markers analysed. Thus, these results do not support a cardioprotective effect of vitamin K as has been suggested by others.

Keywords vitamin K - lipids - inflammation - cardiovascular disease - fibrinolytic activity
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