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食管癌发病率因地区不同悬殊极大,高、低发区相差达300倍。流行病学资料表明环境因素,特别是营养因素在食管癌变过程中有一定作用。本文结合动物实验,着重讨论不同营养对食管癌变的影响,并试从机理方面加以探讨。 流行病学及动物实验:食管癌变与酒精摄取量呈正相关关系,亚非几个食管癌高发地区,酒精并非主要因素,而食物中绿色蔬菜、新鲜水果、动物蛋白、Vit.A.B_2及C的缺乏是导致高发的原因。中国食管癌高发区人群食物中钼、钙、锌、动物蛋白、水果疏菜、脂肪及核黄素摄入量均不足,其中一
The incidence of esophageal cancer varies greatly from region to region. The difference between high and low incidence areas is 300 times. Epidemiological data show that environmental factors, especially nutritional factors, play a role in the process of esophageal carcinogenesis. This article combines animal experiments, focusing on the impact of different nutrition on esophageal cancer, and try to explore the mechanism. Epidemiology and animal experiments: There is a positive correlation between canceration and alcohol intake in esophageal cancer, alcohol is not a major factor in several high-risk areas of esophageal cancer in Asia and Africa, and green vegetables, fresh fruits, animal protein, Vit.A.B_2 and C in food The lack of is the reason for the high incidence. The food intake of molybdenum, calcium, zinc, animal protein, fruit vegetables, fat, and riboflavin in the population with high incidence of esophageal cancer in China is insufficient.