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对临床、病理、放射线或ＣＴ检查确诊的８２名癌肿患者，在放疗前后和对４２名健康人进行了微量元素铁、锌、铜、锰、硒、铬、钴、镍的分析。研究结果显示：１．癌肿患者血清铜、镍、锰、铬、钴的含量比健康人高，而血清锌、铁、硒的含量却比健康人低；２．血清Ｃｕ／Ｚｎ、Ｃｒ／Ｚｎ、Ｃｏ／Ｚｎ、Ｎｉ／Ｚｎ的比值癌肿患者均比健康人高，而Ｆｅ／Ｚｎ、Ｓｅ／Ｚｎ的比值却相反。因此，可根据血清铜升高、血清锌降低，血清铜／锌比值升高的特点．用于癌肿的早期诊断；３．癌肿患者放疗后血清铁、锌含量进一步下降，铜、锰、铬的含量也出现降低．唯有硒的含量有所上升。因此，放疗时应注意补充铁、锌、铜元素。
Eighty-two cancer patients diagnosed clinically, pathologically, radiologically or by CT were analyzed for trace elements iron, zinc, copper, manganese, selenium, chromium, cobalt and nickel before and after radiotherapy and 42 healthy people. The results show that: 1. Cancer patients with serum copper, nickel, manganese, chromium, cobalt content higher than healthy people, and serum zinc, iron, selenium levels lower than healthy people; The ratio of serum Cu / Zn, Cr / Zn, Co / Zn and Ni / Zn was higher in cancer patients than in healthy people, while the ratio of Fe / Zn and Se / Zn was the opposite. Therefore, according to elevated serum copper, serum zinc decreased serum copper / zinc ratio characteristics. For the early diagnosis of cancer; 3. Serum iron and zinc levels of cancer patients further decreased after radiotherapy, and the contents of copper, manganese and chromium also decreased. Only the content of selenium has risen. Therefore, radiotherapy should pay attention to iron, zinc, copper supplement.