Fig. 2.
Aerolysin assay is specific for PNH. Mean absorbance of erythrocytes from 7 normal controls (dots), 3 PNH patients (shaded), and 20 disease controls (slanted lines) after 10 minutes of exposure to a 1:128 dilution of aerolysin (1 × 10−8 mol/L). Disease controls consisted of myelodysplastic syndromes (7), aplastic anemia (5), polycythemia vera (2), myelofibrosis (2), sickle cell anemia (1), autoimmune hemolytic anemia (1), iron deficiency anemia (1), and acute myelogenous leukemia (1). Error bars represent the standard deviation.