Up regulated apoptotic inhibitor Bcl X and down regulated apoptotic promotors Bak and Bax might be associated with the genesis and development of nasal polyp.

• 鼻息肉上皮抑凋亡基因Bcl－X蛋白表达上调和促凋亡基因Bak和Bax蛋白表达下调可能与鼻息肉的发生和发展有关