Figure 1.

Correlation between serum levels of high-density lipoprotein-cholesterol and autoantibody titers against oxidized low-density lipoprotein. Correlation between serum levels of high-density lipoprotein (HDL)-cholesterol and autoantibody titers against (a) oxidized low-density lipoprotein in the propagation phase (oxLDL_P) and (b) oxidized low-density lipoprotein in the decomposition phase (oxLDL_D) in early rheumatoid arthritis patients at baseline. (c) Correlation between HDL-associated lipoprotein-associated phospholipase A₂ (HDL-Lp-PLA₂) activity and autoantibody titers against oxLDL_D in early rheumatoid arthritis patients at baseline.