PLA2G7 and chronic kidney disease: Serum samples of study subjects with more advanced CKD stages showed similar HDL-C levels (Fig. 1A), increased levels of the HDL associated acute phase protein SAA (P = 0.016) (Fig. 1B), higher antioxidative activity (P < 0.001) (Fig. 1C), and lower paraoxonase activity (P = 0.011) (Fig. 1D), whereas HDL-associated Lp-PLA2 activity was not altered (Fig. 1E).