Figure 2

Myeloperoxidase activity in neutrophil MPs measured by chemiluminescence (CL). Effect on luminol CL of MPs (1 μg/mL) and 20 μM H₂O₂ with/without 10 μM sodium azide (NaN₃) (n = 4) (A); with/without 1 mM taurine (n = 4) (B) and with/without Cl (n = 3) (C). MPO activity was observed on MPs derived from neutrophils activated with different stimulus (irradiation with ultraviolet, calcium ionophore and PMA) (D). Data represent the median with interquartile range of three or four independent experiments (*p < 0.05, Mann Whitney test).