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亚硝胺类化合物具有很强的致癌作用，是人类环境中的一种致癌物。在胃癌高发区研究人体内外硝酸盐、亚硝酸盐的分布情况，对研究胃癌的发生、发展具有一定的意义。为此，对河北胃癌高发区赞皇县人体内外硝酸盐、亚硝酸盐进行了研究，并选择省内胃癌低发区赤城县做对照。旨在分
Nitrosamines have a strong carcinogenic effect and are carcinogens in the human environment. The research on the distribution of nitrate and nitrite in human body and in the high incidence area of gastric cancer has certain significance for the study of the occurrence and development of gastric cancer. To this end, nitrates and nitrites were studied in vivo and in vitro in Zanhuang County, a high-risk area in Hebei Province, and Chicheng County, a low incidence area of gastric cancer, was selected as a control. Designed to divide