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早已发现在许多食管癌高发区膳食中长期缺乏一些维生素和矿物质。这些地区的膳食基本上由玉米面或面粉组成。当以模拟的谷类为主的饲料饲喂大鼠时,可使大鼠对食管致癌物敏感性增强。本文报道了在饲喂大鼠多种矿物质和维生素边缘缺乏的玉米基础饲料时各种个别营养素的保护作用。实验以精加工的白玉米粉为基础,加入最低量的蛋白质、维生素和矿物质。使实验大鼠刚刚能维持正常生长。在每公斤基础饲料中分别加入250 mg镁、30mg锌、0.5mg钼、O.45mg硒、5mg维生素B_2、20mg 尼克酸、
Has long been found in many areas of high incidence of esophageal cancer in the long-term lack of some vitamins and minerals. The diet in these areas consists essentially of corn flour or flour. When fed on simulated cereal-based diets, rats were sensitized to carcinogens in the esophagus. This article reports the protective effect of various nutrients on corn-based diets lacking multiple minerals and vitamin margins in rats. The experiment was based on ground white corn flour, adding the minimum amount of protein, vitamins and minerals. The experimental rats just can maintain normal growth. Each kilogram of basic feed were added 250 mg of magnesium, 30mg zinc, 0.5mg molybdenum, O. 45mg selenium, 5mg vitamin B_2, 20mg niacin,