论文部分内容阅读
砷是国际上公认的一种致癌元素，虽然人们已从天然饮水及职业流行病学资料证实，砷可引起人类皮肤癌、肺癌、膀胱癌等多种肿瘤，但尚无被普遍认可的确切的致癌机制。现在，人们对砷的研究已深入到基因水平，而且已知金属硫蛋白（Ｍｅｔａｌ－ｌｏｔｈｉｏｎｅｉｎ，ＭＴ）和热
Arsenic is an internationally accepted oncogenic element. Although it has been confirmed from natural drinking water and occupational epidemiological data that arsenic causes many kinds of tumors in human skin cancer, lung cancer and bladder cancer, it has not been universally accepted yet Carcinogenic mechanism. Now, people’s research on arsenic has gone deep into the genetic level, and it is known that metal-lothionein (MT) and heat