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现有调查研究结果已使大家认识到,食管癌的发病可能与环境因素有关。因此,在肿瘤流行病学研究工作中,除了应当继续检测环境中的可疑致癌物质之外,寻找一些其他指标也是极为重要的。动物肿瘤流行病学的研究,一方面可以验证与补充人类肿瘤的人群地理分布,探讨肿瘤发生发展的环境因素;另一方面,由于动物肿瘤发病时间较短,可为防治的实验研究提供一个重要的指标。中国医学科学院肿瘤研究所在人类食管癌高发区河南林县,及低发区河南范县与山西浑源县,对与人类生活在同样环境的半年
The results of the existing investigations and studies have made everyone realize that the incidence of esophageal cancer may be related to environmental factors. Therefore, in addition to continuing to detect suspicious carcinogens in the environment, it is extremely important to look for some other indicators in the epidemiological studies of tumors. The epidemiological studies of animal tumors can, on the one hand, verify and supplement the geographical distribution of human tumors and explore the environmental factors of tumor development. On the other hand, due to the short onset time of animal tumors, it can provide an important experimental study for prevention and treatment. index of. Institute of Cancer Research, Chinese Academy of Medical Sciences, Linxian County, Henan Province, a high-risk area of human esophageal cancer, and Fan County, Henan Province, and Wuyuan County, Shanxi Province, where people live in the same environment