论文部分内容阅读
针对滑石粉是否产生胃癌问题,作者进行了以下实验。用含有1%温石棉或铁石棉饲料喂养45支地鼠,没有发现一只有胃癌。除了一例结肠系膜肿瘤外,没有胃肠道肿瘤。胸膜内注射25毫克的温石棉或铁石棉,在一部分地鼠中产生胸膜间皮瘤。用相同剂量的滑石粉(一种只含有滑石,另一种还含有大量的透闪石石棉和少量的蛇纹石矿),用地鼠作同样的实验,都没有发现由于这样的处理所产生的肿瘤。根据以上的结果作者不支持日本人胃癌系由于大米加工所用滑石粉含有石棉的说法。
The authors conducted the following experiments on whether or not talcum powder causes gastric cancer. Feeding 45 hamsters with a diet containing 1% chrysotile or amosite, no gastric cancer was found. There was no gastrointestinal tumor except one case of a mesocytic tumor. Intrapleural injection of 25 milligrams of chrysotile or amosite forms pleural mesothelioma in a portion of hamsters. Using the same dose of talcum powder (a kind containing only talc, and the other containing a large amount of tremolite asbestos and a small amount of serpentine), the same experiment was conducted with hamsters and no results were found for such treatment. Tumors. Based on the above results, the authors do not support the assertion that the Japanese gastric cancer system contains asbestos in talcum powder for rice processing.