Fig. 7

Gene expression levels of candidate genes. Gene expression levels of CXCR1 (A), CCL13 (B), PPBP (C), CCR3 (D) and MMP9 (E) in CRSwNP and control samples. Gene expression levels of CXCR1 (F), CCL13 (G), PPBP (H), CCR3 (I) and MMP9 (J) in different inflammatory endotypes of CRSwNP. (*P < 0.05, **P < 0.01, ***P < 0.001, ns, not significant).