Keywords esophageal neoplasms;tumor cells;cultured;DNA damage;sodium nitroprusside/pharmacyology;nitric oxide;nitric oxide donors;electrophoresis;agar gel;

• 食管肿瘤;肿瘤细胞;培养的;DNA损伤;硝普钠药理学;一氧化氮;一氧化氮供体;电泳;琼脂凝胶;