Background: Yiqijiedu compound can inhibit cell growth and induce cell apoptosis through down-regulating telomerase activity, and can inhibit cell proliferation and induce cell death through signal pathways of inhibiting nuclear factor, cell division and proliferation, cell cycle, DNA repair and inducing cell apoptosis to promote necrosis. Objective: To investigate the effects of Yiqijiedu compound on cell proliferation of nasal and/or nasopharyngeal epithelial cells and expressive activities of apoptosis-related genes bax, bcl-2, p53mt and cel...