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胃癌的病因关于胃癌的预防,在一定程度上取决于肿瘤病因学的研究。现在已经发现一些有关致病因素,并取得一定的认识。近十年来的研究,不再强调饮食品种而较多侧重于环境中化学致癌因子和癌前疾病方面。兹将可能的有关因素分述于下。一、食物和胃癌的联系:胃癌发病率在地理分布上的差异,使人们很自然地和饮食习惯联系起来。比如,早先认为日本胃癌高发与主食大米,缺少大豆,
The etiology of gastric cancer The prevention of gastric cancer depends to a certain extent on the study of the etiology of tumors. Some pathogenic factors have now been discovered and some knowledge has been obtained. Research in the past decade has no longer focused on dietary traits but rather on chemical carcinogens and precancerous conditions in the environment. The possible relevant factors are described below. First, the connection between food and gastric cancer: The geographical distribution of gastric cancer incidence makes people naturally associate with eating habits. For example, earlier thought that the high incidence of gastric cancer in Japan and staple rice, lack of soybeans,