HomocysteineVitamin B 12Folic AcidHyperhomocysteinemiaMethylenetetrahydrofolate Reductase (NADPH2)Vitamin AVitamin B 6HomocystineVitaminsVitamin DVitamin EVitamin B 12 DeficiencyVitamin B ComplexCystathionine beta-SynthaseOxidoreductases Acting on CH-NH Group DonorsVitamin A DeficiencyMethioninePyridoxineFolic Acid DeficiencyVitamin D Deficiency5-Methyltetrahydrofolate-Homocysteine S-MethyltransferaseVitamin B 6 DeficiencyBetaine-Homocysteine S-MethyltransferaseHomocystinuriaDietary SupplementsRisk Factors5,10-Methylenetetrahydrofolate Reductase (FADH2)Vitamin B DeficiencyS-AdenosylhomocysteineVitamin K 1Methylmalonic AcidHydroxocobalaminVitamin E DeficiencyBiological MarkersCystathionineCardiovascular DiseasesGypsiesGenotypeS-AdenosylmethionineCreatinineVitamin K DeficiencyFastingPolymorphism, GeneticAscorbic AcidCase-Control StudiesPyridoxal PhosphateCholecalciferolDietNutritional StatusFood, FortifiedSlovakiaHematinicsReference ValuesHLA-B51 AntigenVascular DiseasesProspective StudiesDouble-Blind MethodReceptors, CalcitriolVitamin D-Binding ProteinTranscobalaminsKidney Failure, ChronicRenal DialysisBetaineArteriosclerosisCross-Sectional StudiesRegression AnalysisPantothenic AcidHealthy VolunteersVitamin K 2Time FactorsFollow-Up StudiesLipidsCystatinsChromatography, High Pressure LiquidStrokeReduced Folate Carrier ProteinEndothelium, VascularThrombophlebitisHomocysteine S-MethyltransferaseBehcet SyndromeHomozygoteMalondialdehydeCalcifediolDose-Response Relationship, DrugC-Reactive ProteinAntioxidantsCalcitriolAge FactorsLiverLinear ModelsTetrahydrofolatesAvitaminosisOdds RatioCoronary DiseaseCohort StudiesAdministration, OralAnalysis of VarianceOxidative StressCholesterolSex Factors