目的　研究低氧环境下肝癌细胞生长是否被抑制 ,胞内ＩＩ相解毒酶ＮＡＤ(Ｐ)Ｈ :醌氧化还原酶 1(ＮＱ0 1)活性是否被诱导增高 ,以及二者之间的关系。方法　肝癌细胞ＳＭＭＣ 772 1接种于 96孔培养板内 ,5 %ＣＯ2 孵箱培养 2 4ｈ后 ,换新鲜培养液 (已用混合气预先平衡 )放入低氧 Objective To investigate whether the growth of hepatocellular carcinoma cells in hypoxia environment is inhibited and whether the activity of intracellular phase II detoxification enzyme NAD (P) H: quinone oxidoreductase 1 (NQ0 1) is induced to increase or not, and the relationship between them. Methods Hepatocellular carcinoma SMMC-772 1 cells were seeded in 96-well culture plates and cultured in 5% CO2 incubator for 24 hours. Fresh medium (pre-equilibrated with mixed gas) was placed into hypoxia