Abstract 18834: IF1 And ApoA-I Serum Concentrations, but Not HDL-cholesterol, Predict Mortality in Coronary Artery Disease Patients: The Genes Study
2015
Introduction: High-density lipoprotein cholesterol (HDL-C) may not be the best clinical measure of HDL for assessing cardiovascular risk. Serum inhibitor factor 1 (IF1), an endogenous inhibitor of the ecto-F1-ATPase apoA-I receptor, has been identified as an independent determinant of HDL-C associated with low risk of coronary artery disease (CAD). Objective: To determine the relationship between serum IF1 concentration and mortality in stable CAD patients in comparison with HDL-C and apoA-I Methods: Serum IF1 was measured in 577 coronary male patients (enrollment age 45-74 years; enrollment period, 2001-2004) from the GENES (Genetique et ENvironement en Europe du Sud) study. Vital status was assessed yearly through December 31, 2013. Results: During a median follow up of 11 years, mortality rate was 29.5%. Cardiovascular mortality accounted for the majority (62.5%) of deaths. Serum IF1 (median value: 0.42 mg/mL) was positively correlated with HDL-C and apoA-I, and negatively with triglycerides and the se...
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