目的研究人胃黏膜上皮细胞系无嘌呤无嘧啶核酸内切酶（APE）的表达状况。
Objective To study the expression of APE/Ref-1 in gastric mucosal epithelial cell lines.
在脊椎类和无脊椎类动物的多种组织中，嘧啶与嘌呤类物质具有广泛的特异性作用。
Purines and pyrimidines have widespread and specific action in many tissues of both invertebrates and vertebrates.
在脊椎类和无脊椎类动物的多种组织中，嘧啶与嘌呤类物质具有广泛的特异性作用。
Purines and pyrimidines have widespread and specific action in many tissues of both invertebrates and vertebrates.
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