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Two kinds of human tumor cell strains having different activity of O~6-methylguanine-DNA methyltransferase (O~6-MT) were transplanted into nude mice. Then the mice were inject-ed intraperitoneally with bifunctional alkylating agent 1--(4--amino--2-methyl--5--pyrimidinyl)methy1-3-(2-chloroethyl)-3-nitrosourea hydrochloride (ACNU). The tumors with low O~6-MTactivity were quickly suppressed or cured. The result suggests that some tumors, if previ-sionally determined with low O~6-MT activity, might be efficiently cured by treatment withACNU. This probably opens a new way for human cancer chemotherapy. 相似文献
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本文利用四阶导数光谱法消除杂质干扰,研究了酸度对多菌灵导数光谱的影响;它在0-25微克/5毫升范围呈线性关系;拟定了苹果样中该农药残留量的测定方法。结果满意。 相似文献
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