Journal
DIABETES CARE
Volume 31, Issue 12, Pages 2374-2379Publisher
AMER DIABETES ASSOC
DOI: 10.2337/dc08-1083
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OBJECTIVE - The objectives of this study were to determine age- and sex-specific concentrations of adiponectin in Asian Indian teenagers and adults and to assess whether its blood levels correlated with insulin resistance and other cardiometabolic parameters. RESEARCH DESIGN AND METHODS - We studied 196 teenagers (94 boys, 102 girls) 12-18 years of age, selected from a cohort of 2,640 individuals from a cross-sectional school-based survey in Chennai, India. For comparison, adiponectin and plasma insulin were measured in 84 healthy adults. Correlation of adiponectin with plasma levels of insulin, proinsulin, insulin resistance, anthropometry, and family history of diabetes were studied. RESULTS - Adiponectin showed a sex dimorphism, with girls having higher values (in mu g/ml) (10.3 +/- 5.0) than boys (8.4 +/- 3.5) (P < 0.0001), and it showed a positive correlation with HDL cholesterol in boys only and not with other lipid parameters, insulin resistance, proinsulin, anthropometry, and family history of diabetes. in the adults, adiponectin correlated with fasting glucose and inversely with triglycerides. CONCLUSIONS - in Asian Indian adults and teenagers, adiponectin did not correlate directly with measures of insulin sensitivity, overweight, and other cardiometabolic variables. This was at variance with several reports in other populations showing an inverse association of adiponectin with insulin resistance, proinsulin, and BMI, suggesting ethnic differences in the relationship of adiponectin with insulin sensitivity. The role of adiponectin in relation to action of insulin needs more detailed studies in Asian Indians.
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