Fig. 5
Reduced hIL-33 concentrations in serum, plasma, and NF samples measured using the reduced hIL-33 iPCR assay. A–C Reduced hIL-33 concentrations measured in human NF (A), serum (B) and plasma samples (C) from nine control (blue circles) and nine asthma (red circles) patients. ns no significance. D Correlation of total versus reduced hIL-33 concentrations in serum (black circles) and NF (black triangles) samples from asthmatic donors (n = 23). R2 = 0.95, P < 0.0001 for NF. Data are means of duplicates or quadruplicates