title: Dietary intake of menaquinone is associated with a reduced risk of coronary heart disease: the Rotterdam Study.
abstract: Vitamin K-dependent proteins, including matrix Gla-protein, have been shown to inhibit vascular calcification. Activation of these proteins via carboxylation depends on the availability of vitamin K. We examined whether dietary intake of phylloquinone (vitamin K-1) and menaquinone (vitamin K-2) were related to aortic calcification and coronary heart disease (CHD) in the population-based Rotterdam Study. The analysis included 4807 subjects with dietary data and no history of myocardial infarction at baseline (1990-1993) who were followed until January 1, 2000. The risk of incident CHD, all-cause mortality, and aortic atherosclerosis was studied in tertiles of energy-adjusted vitamin K intake after adjustment for age, gender, BMI, smoking, diabetes, education, and dietary factors. The relative risk (RR) of CHD mortality was reduced in the mid and upper tertiles of dietary menaquinone compared to the lower tertile [RR = 0.73 (95% CI: 0.45, 1.17) and 0.43 (0.24, 0.77), respectively]. Intake of menaquinone was also inversely related to all-cause mortality [RR = 0.91 (0.75, 1.09) and 0.74 (0.59, 0.92), respectively] and severe aortic calcification [odds ratio of 0.71 (0.50, 1.00) and 0.48 (0.32, 0.71), respectively]. Phylloquinone intake was not related to any of the outcomes. These findings suggest that an adequate intake of menaquinone could be important for CHD prevention.
authors.affiliation: Department of Epidemiology & Biostatistics, Erasmus Medical Center Rotterdam, Rotterdam, The Netherlands.
authors.forename: Johanna M
authors.initials: JM
authors.lastname: Geleijnse
authors.forename: Cees
authors.initials: C
authors.lastname: Vermeer
authors.forename: Diederick E
authors.initials: DE
authors.lastname: Grobbee
authors.forename: Leon J
authors.initials: LJ
authors.lastname: Schurgers
authors.forename: Marjo H J
authors.initials: MH
authors.lastname: Knapen
authors.forename: Irene M
authors.initials: IM
authors.lastname: van der Meer
authors.forename: Albert
authors.initials: A
authors.lastname: Hofman
authors.forename: Jacqueline C M
authors.initials: JC
authors.lastname: Witteman
mesh_terms: D001018:Aortic Diseases / Q000453:epidemiology; D001161:Arteriosclerosis / Q000453:epidemiology; D002114:Calcinosis / Q000453:epidemiology; D002784:Cholesterol / Q000097:blood; D008076:Cholesterol, HDL / Q000097:blood; D003327:Coronary Disease / Q000453:epidemiology / Q000517:prevention & control*; D004032:Diet; D002149:Energy Intake; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009026:Mortality; D009203:Myocardial Infarction / Q000401:mortality; D009426:Netherlands; D016017:Odds Ratio; D011446:Prospective Studies; D012307:Risk Factors; D012727:Sex Characteristics; D010837:Vitamin K 1 / Q000008:administration & dosage; D024482:Vitamin K 2 / Q000008:administration & dosage*
chemical_list: D008076:Cholesterol, HDL; D024482:Vitamin K 2; D010837:Vitamin K 1; D002784:Cholesterol