国内外大量研究证实,亚硝胺的致癌作用带有普遍性,人的机体内经常存在亚硝胺前体物,并具备合成亚硝胺的条件,体内一旦形成弧硝胺,就会比环境中的亚硝胺更快、更直接地作用于人体,导致癌症的发生。因此,探讨如何阻断机体内亚硝胺的合成,将有助于对癌症进行病因性预防。山东大 A large number of studies at home and abroad have confirmed that the carcinogenicity of nitrosamines is universal. People often have nitrosamine precursors in their bodies and have the conditions for the synthesis of nitrosamines. Once they form arcal nitrosamines, they will be more environmentally than the environment. The nitrosamines in the body act more quickly and more directly on the body, leading to cancer. Therefore, exploring how to block the synthesis of nitrosamines in the body will help prevent the etiology of cancer. Shandong University