Adiponectin gene variants and the risk of coronary artery disease in patients with type 2 diabetes
Hussain, Nasser M Al-Daghri 1, Omar S Al-Attas, Majed S Alokail, Khalid M Alkharfy, Tajamul . 2011
Abstract
Patients with type 2 diabetes (T2D) are more susceptible to develop cardiovascular complications than non-diabetic subjects. Several studies have indicated a role of adiponectin gene in the increased coronary artery disease (CAD) risk in T2D patients. The data however is limited and have been inconsistent. In this study we examined the association of SNP45T>G and SNP276G>T of adiponectin gene with CAD risk in T2D patients in a Saudi population. A total of 418 type 2 diabetic patients were randomly recruited in this study from the RIYADH COHORT. Of the total diabetes patients, 123 were also diagnosed to have CAD, while the rest were control subjects. Anthropometric, clinical and biochemical parameters were measured by standard procedures. Genotyping of polymorphisms was carried out by PCR-RFLP analysis. Genotype distribution of SNP45T>G was significantly (P=0.005) different between control and CAD subjects, while the distribution of SNP276G>T genotypes was comparable between the subjects. The SNP45T>G was significantly associated with risk of CAD [OR (95% CI), 4.7 (1.6-13.5), P<0.003] but not SNP276G>T [OR (95% CI), 1.02 (0.53-1.9), P>0.05]. The association of SNP45T>G with CAD risk remained significant even after adjusting for potential confounding factors [OR (95% CI), 7.2 (1.1-45.9), P<0.05]. The SNP45T>G of adiponectin gene is an independent risk factor for CAD in T2D patients in a Saudi population. These findings support a role for adiponectin gene in the increased CAD risk in diabetes patients and are consistent with genetic heterogeneity in the association between adiponectin gene and coronary artery disease.
Prediabetes is a reversible, intermediate stage of type 2 diabetes mellitus (T2DM). Lifestyle changes that include healthy diet and exercise can substantially reduce progression to T2DM.
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