Fig. 3From: Small size apolipoprotein(a) isoforms enhance inflammatory and proteolytic potential of collagen-primed monocytesInfluence of the number of apo(a) Kringle IV-2 repeats on ROS production and MMP-9 secretion by collagen-primed monocytes. Monocytes were incubated on albumin (Alb) or type I collagen (closed bars) at 37 °C with or without 100 nM 10 K, 18 K, or 34 K apo(a). a ROS production evaluated by NBT reduction test. b MMP-9 secretion evaluated by ELISA. Results (means ± standard deviations) are expressed as ratios to values obtained on albumin-coated plates. a.u.: arbitrary units, NS: non-significant, *: p < 0.05, **: p < 0.01Back to article page