PMID- 21767890 OWN - NLM STAT- MEDLINE DCOM- 20120312 LR - 20161125 IS - 1872-8227 (Electronic) IS - 0168-8227 (Linking) VI - 94 IP - 2 DP - 2011 Nov TI - Association of VKORC1 -1639 G>A polymorphism with carotid intima-media thickness in type 2 diabetes mellitus. PG - 236-41 LID - 10.1016/j.diabres.2011.06.021 [doi] AB - AIMS: Media calcification is a predictor of cardiovascular mortality in type 2 diabetes mellitus (T2DM). Undercarboxylation of some vitamin K-dependent proteins, due to genetic polymorphisms of VKORC1, can lead to calcification. We examined a potential association between VKORC1 -1639 G>A polymorphism and T2DM and, also, the association of this polymorphism with carotid intima-media thickness (cIMT). METHODS: VKORC1 -1639 G>A polymorphism was determined in 299 T2DM patients and 328 controls of Caucasian origin using PCR-RFLP. cIMT was measured in a subgroup of 118 T2DM patients. RESULTS: The frequency of VKORC1 genotypes between diabetic and nondiabetic subjects differed significantly (p=0.01). VKORC1 genotype was associated with T2DM in an adjusted model (OR 1.36, p=0.009). A statistically significant difference was observed in the maximum value of cIMT among different genotypes. VKORC1 -1639 G>A polymorphism was an independent predictor of cIMT (p=0.029) after adjusting for established risk factors. CONCLUSIONS: The association between VKORC1 -1639 G>A polymorphism and risk of T2DM could be due to the higher prevalence of calcification in T2DM patients. This is supported by the independent association between VKORC1 -1639 G>A polymorphism and maximum cIMT in T2DM patients which is likely due to atherosclerosis characterized by increased calcification. CI - Copyright (c) 2011 Elsevier Ireland Ltd. All rights reserved. FAU - Tavridou, Anna AU - Tavridou A AD - Lab of Pharmacology, Medical School, Democritus University of Thrace, Dragana Campus, 68100 Alexandroupolis, Greece. atavrid@med.duth.gr FAU - Petridis, Ioannis AU - Petridis I FAU - Vasileiadis, Michail AU - Vasileiadis M FAU - Ragia, Georgia AU - Ragia G FAU - Heliopoulos, Ioannis AU - Heliopoulos I FAU - Vargemezis, Vassileios AU - Vargemezis V FAU - Manolopoulos, Vangelis G AU - Manolopoulos VG LA - eng PT - Journal Article DEP - 20110720 PL - Ireland TA - Diabetes Res Clin Pract JT - Diabetes research and clinical practice JID - 8508335 RN - EC 1.- (Mixed Function Oxygenases) RN - EC 1.17.4.4 (VKORC1 protein, human) RN - EC 1.17.4.4 (Vitamin K Epoxide Reductases) SB - IM MH - Aged MH - Analysis of Variance MH - Carotid Arteries/*diagnostic imaging MH - Carotid Artery Diseases/diagnostic imaging/enzymology/*genetics MH - Case-Control Studies MH - Chi-Square Distribution MH - Diabetes Mellitus, Type 2/complications/enzymology/*genetics MH - Diabetic Angiopathies/diagnostic imaging/enzymology/*genetics MH - Female MH - Gene Frequency MH - Genetic Predisposition to Disease MH - Greece MH - Humans MH - Logistic Models MH - Male MH - Middle Aged MH - Mixed Function Oxygenases/*genetics MH - Odds Ratio MH - Phenotype MH - Polymerase Chain Reaction MH - *Polymorphism, Genetic MH - Risk Assessment MH - Risk Factors MH - Tunica Intima/*diagnostic imaging MH - Tunica Media/*diagnostic imaging MH - Ultrasonography MH - Vascular Calcification/diagnostic imaging/enzymology/*genetics MH - Vitamin K Epoxide Reductases EDAT- 2011/07/20 06:00 MHDA- 2012/03/13 06:00 CRDT- 2011/07/20 06:00 PHST- 2011/03/18 00:00 [received] PHST- 2011/06/16 00:00 [revised] PHST- 2011/06/22 00:00 [accepted] PHST- 2011/07/20 06:00 [entrez] PHST- 2011/07/20 06:00 [pubmed] PHST- 2012/03/13 06:00 [medline] AID - S0168-8227(11)00343-3 [pii] AID - 10.1016/j.diabres.2011.06.021 [doi] PST - ppublish SO - Diabetes Res Clin Pract. 2011 Nov;94(2):236-41. doi: 10.1016/j.diabres.2011.06.021. Epub 2011 Jul 20.