Abstract
Lipoprotein-associated phospholipase A2 (Lp-PLA(2)) mass is a novel inflammatory biomarker. In human blood, Lp-PLA(2) is predominately associated with low-density lipoprotein (LDL). This study examines the ability of lifestyle modification (diet and exercise) and combination lipid therapy to reduce Lp-PLA(2) levels while also determining the relationship between changes in LDL cholesterol and Lp-PLA(2). Thirty dyslipidemic patients who received lifestyle intervention and combination lipid therapy for an average of 6 months were included in these analyses (mean age, 60.9 years); 40% had stable angiographically established coronary artery disease, 40% had the metabolic syndrome, and 70% were men. Drug therapy included omega-3 fish oil, extended-release niacin, colesevelam hydrochloride, and a fixed combination of 10-mg ezetimibe and 40-mg simvastatin. The study revealed a 33% reduction in mean Lp-PLA(2) values (baseline 224.9+/-47.5 vs posttreatment 149.5+/-35.5 ng/mL; P<.001). Significant changes in mean LDL cholesterol from baseline (127.9+/-49.3 vs posttreatment 65.2+/-32.1 mg/dL; P<.001) were also observed. However, regression analysis revealed only a weak positive relationship between changes in LDL cholesterol and Lp-PLA(2)...Continue Reading
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