Li and colleagues57 performed immunohistochemistry and quantitative PCR for nasal polyp tissue of 65 CRSwNP patients and inferior turbinate samples of 19 controls, detecting that p63 expression is elevated in patients with CRSwNP, relates to epithelial hyperplasia in nasal polyp tissue, and is reduced in CRSwNP patients after oral glucocorticoid treatment. This evidence concerns the gene TP63 and Nasal polyposis.