Synergistic effect of low K and D vitamin status on arterial stiffness in a general population
Language English Country United States Media print-electronic
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
28486172
DOI
10.1016/j.jnutbio.2017.04.010
PII: S0955-2863(16)30593-9
Knihovny.cz E-resources
- Keywords
- 25-Hydroxyvitamin D(3), Aortic pulse wave velocity, MGP, Vitamin D, Vitamin K, rs2228570 genotype, γ-Carboxyglutamate,
- MeSH
- Pulse Wave Analysis MeSH
- Adult MeSH
- Extracellular Matrix Proteins metabolism MeSH
- Polymorphism, Single Nucleotide MeSH
- Calcifediol blood MeSH
- Middle Aged MeSH
- Humans MeSH
- Matrix Gla Protein MeSH
- Vitamin K Deficiency physiopathology MeSH
- Calcium-Binding Proteins metabolism MeSH
- Cross-Sectional Studies MeSH
- Receptors, Calcitriol genetics MeSH
- Regression Analysis MeSH
- Aged MeSH
- Vascular Stiffness physiology MeSH
- Vitamin D blood MeSH
- Vitamin K blood MeSH
- Check Tag
- Adult MeSH
- Middle Aged MeSH
- Humans MeSH
- Male MeSH
- Aged MeSH
- Female MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Names of Substances
- Extracellular Matrix Proteins MeSH
- Calcifediol MeSH
- Calcium-Binding Proteins MeSH
- Receptors, Calcitriol MeSH
- Vitamin D MeSH
- Vitamin K MeSH
Both vitamins K and D are nutrients with pleiotropic functions in human tissues. The metabolic role of these vitamins overlaps considerably in calcium homeostasis. We analyzed their potential synergetic effect on arterial stiffness. In a cross-sectional study, we analyzed aortic pulse wave velocity (aPWV) in 1023 subjects from the Czech post-MONICA study. Desphospho-uncarboxylated matrix γ-carboxyglutamate protein (dp-ucMGP), a biomarker of vitamin K status, was measured by sandwich ELISA and 25-hydroxyvitamin D3 (25-OH-D3) by a commercial immunochemical assay. In a subsample of 431 subjects without chronic disease or pharmacotherapy, we detected rs2228570 polymorphism for the vitamin D receptor. After adjustment for confounders, aPWV was independently associated with both factors: dp-ucMGP [β-coefficient(S.E.M.)=13.91(4.87); P=.004] and 25-OH-D3 [0.624(0.28); P=.027]. In a further analysis, we divided subjects according to dp-ucMGP and 25-OH-D3 quartiles, resulting in 16 subgroups. The highest aPWV had subjects in the top quartile of dp-ucMGP plus bottom quartile of 25-OH-D3 (i.e., in those with insufficient status of both vitamin K and vitamin D), while the lowest aPVW had subjects in the bottom quartile of dp-ucMGP plus top quartile of 25-OH-D3 [9.8 (SD2.6) versus 6.6 (SD1.6) m/s; P<.0001]. When we compared these extreme groups of vitamin K and D status, the adjusted odds ratio for aPWV≥9.3 m/s was 6.83 (95% CI:1.95-20.9). The aPWV was also significantly higher among subjects bearing the GG genotype of rs2228570, but only in those with a concomitantly poor vitamin K status. In conclusion, we confirmed substantial interaction of insufficient K and D vitamin status in terms of increased aortic stiffness.
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