Journal
DIABETES-METABOLISM RESEARCH AND REVIEWS
Volume 30, Issue 6, Pages 483-488Publisher
WILEY
DOI: 10.1002/dmrr.2520
Keywords
AMP-activated protein kinase subunit 1 gene; single nucleotide polymorphisms; coronary artery disease; type 2 diabetes mellitus
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Funding
- National 973 Project [2006CB503903-2006CB503908]
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BackgroundIncreasing evidence suggests that adenosine monophosphate-activated protein kinase (AMPK) plays a critical physiological role in the cardiovascular system. The objective of this study was to assess the possible correlation between the genetic variability of the AMPK1 (PRKAA1) gene and the risk of cardiovascular disease, as well as the interactive effects of the genetic variations and environmental factors, on the risk in Chinese patients with type 2 diabetes. MethodsFive haplotype-tagging single nucleotide polymorphisms (SNPs) at the AMPK1 locus and 404 unrelated Chinese Han subjects with type 2 diabetes were studied; 260 individuals with coronary artery disease and 144 non-coronary artery disease controls were genotyped using the polymerase chain reaction-restriction fragment length polymorphism assay. ResultsMinor allele C at rs3805489 was protective from coronary artery disease in type 2 diabetic subjects compared with allele A (OR 0.67, 95% CI 0.48-0.92, p=0.015). There was no significant correlation between the genotypes at five SNPs and the risk of coronary artery disease. In addition, a significant interaction was identified between smoking status and rs3805489 (p=0.018 for interaction). The smokers with genotype AA at the SNP had a three-fold higher risk of coronary artery disease compared with non-smokers with genotypes AC or CC (OR 3.02, 95% CI 1.39-6.57, p=0.005, after adjustment for other known coronary artery disease risk factors). ConclusionsThe genetic variability at the AMPK1 locus has synergetic effects with smoking to increase the risk of coronary artery disease in the Chinese Han population with type 2 diabetes. Copyright (c) 2014 John Wiley & Sons, Ltd.
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