Blood was obtained fasting at entry, month 4, and month 24 for assessment of lipids (LDL and non–high-density lipoprotein cholesterol), inflammatory (high-sensitivity C-reactive protein [hsCRP], lipoprotein-associated phospholipase A2 [LpPLA2], and oxidized low-density lipoprotein [oxLDL]), and immune activation biomarkers (monocyte chemoattractant protein 1, IL-6, IL-10, IL-1β, IL-18, soluble CD14, and soluble CD163). Lipids and hsCRP were measured from serum at Quest Diagnostics, Secaucus, New Jersey. Inflammatory and immune biomarkers were measured from plasma using enzyme-linked immunosorbent assay kits (R&D Systems) except for oxLDL (Mercodia) at Temple University, Philadelphia, Pennsylvania.
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