Abstract
Familial hypercholesterolemia (FH) is characterized by increased risk for premature coronary artery disease (CAD). This risk is exacerbated in the presence of abdominal obesity and insulin resistance. Low adiponectin is part of the clustering of metabolic abnormalities associated with abdominal obesity and insulin resistance. The present study, therefore, aims to examine the relationship between plasma adiponectin and age at CAD diagnosis in FH patients.Plasma adiponectin was measured by ELISA in 568 non-diabetic FH individuals of French-Canadian origin. CAD was defined according to strict clinical criteria. Prior to analyses, patients were grouped according to age and gender-specific tertiles of plasma adiponectin levels. Multivariate Cox proportional hazards regression was used to estimate the association between plasma adiponectin levels and age at diagnosis of CAD. Overall, FH patients in the lowest tertile of plasma adiponectin exhibited CAD at a significantly younger age (hazard ratio=1.73, confidence interval 95%: [1.19–2.53]; p=0.004).These results suggest that low plasma adiponectin is associated with an increased risk of premature CAD over and above the already exaggerated risk seen in FH patients.
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