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为确定硝酸盐摄入量与胃癌发病率的关系,本文用硝酸钾水溶液给小白鼠灌胃证实,增加硝酸钾的摄入量,可明显增加小白鼠骨髓细胞染色体的畸变率和提高小白鼠的致突变指数。因此,硝酸盐的摄入量增加很可能会导致胃癌的发病率升高。
To determine the relationship between nitrate intake and the incidence of gastric cancer, potassium nitrate solution was given to mice in this study. Increasing the intake of potassium nitrate can significantly increase the chromosome aberration of mice bone marrow cells and improve the mice’s Mutagenicity index. Therefore, the increase in nitrate intake is likely to lead to increased incidence of gastric cancer.