Figure 2

Relative expression levels of the 10 genes by qPCR analysis in the replication group (n = 14, Wilcoxon rank sum test). Bars show the median values and interquartile range. (a) The upregulated genes detected by RNA-seq (POSTN, ALOX15, CST1, SERPINB3 and CCL18). (b) The downregulated genes detected by RNA-seq (BPIFA1, SLPI, BPIFB1, STATH and LTF). NP, nasal polyp; IT, inferior turbinate; POSTN, periostin; ALOX15, arachidonate 15-lipoxygenase; CST1, cystatin SN; SERPINB3, serpin peptidase inhibitor, clade B (ovalbumin), member3; CCL18, C-C motif chemokine ligand 18; BPIFA1, BPI fold containing family A member 1; SLPI, secretory leukocyte peptidase inhibitor; BPIFB1, BPI fold containing family B member 1; STATH, statherin; LTF, lactotransferrin.