Correlation of serum adiponectin andadiponectingene polymorphism with metabolic syndrome in Chinese adolescents

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BACKGROUND/OBJECTIVES:To investigate the association of adiponectin and its gene polymorphisms with metabolic syndrome (MetS) and cardiovascular disease (CVD) risk factors in Chinese adolescents.SUBJECTS/METHODS:This cross-sectional study enrolled 919 healthy middle school students (aged 11-16 years; 46.7% females). All participants underwent anthropometric and biochemical examinations, and MetS was diagnosed using 2007 International Diabetes Federation criteria. The presence of adiponectin and its genotypes of single nucleotide polymorphisms (SNPs) rs266729 (-11377C/G), rs2241766 (+45T/G) and rs1501299 (+276G/T) was detected.RESULTS:(1) Serum adiponectin levels were negatively correlated with numerous CVD risk factors (all P < 0.05), and following adjustments for confounding factors, a lower adiponectin level was an independent risk factor for MetS (odds ratio = 5.59; 95% confidence interval: 1.90, 16.41). Central obesity and low levels of high-density lipoprotein cholesterol were positively associated with MetS and reduced serum adiponectin levels. (2) The genotype and frequencies of SNP-11377 and SNP+276 in a MetS group and non-MetS group were not significantly different. Subjects with genotype SNP+45 GG were at higher risk for MetS compared with subjects with genotypes SNP+45 TT (P = 0.033) or TT+TG (P = 0.021). Subjects with genotype SNP+276 TT or TT+TG had higher levels of serum adiponectin compared with subjects with SNP+276 GG (P = 0.012 and 0.014, respectively).CONCLUSIONS:Adiponectin may be used as a predictive biomarker of MetS, and shows a significant association with CVD risk factors in Chinese adolescents. Adiponectin gene polymorphisms are associated with serum adiponectin concentrations and the presence of MetS.European Journal of Clinical Nutrition (2015) 69, 62-67; published online 30 July 2014

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