据《科学》杂志最近报导,早就有人怀疑被污染的花生和肝癌之间有联系,但其原因仍难以捉摸。现在瑞士科学家发现了这一联系。他们的发现可能是预防这种癌的道路上的一个阶梯。 生长在花生上并产生黄曲霉素B1(AFBI)的一种霉菌,在亚洲和非洲各地都很普遍。流行病学研究表明,这种毒素在肝癌中起作用。 两年以前,美国的研究人员发现,这些地区的肝癌,有一半在肿块的抑制基因中有突变体P53。现 According to a recent report by Science magazine, it has long been suspected that there is a link between contaminated peanuts and liver cancer, but the reasons are still elusive. Now Swiss scientists have discovered this connection. Their discovery may be a step on the road to prevent this kind of cancer. A mold that grows on peanuts and produces aflatoxin B1 (AFBI) is common in Asia and Africa. Epidemiological studies have shown that this toxin plays a role in liver cancer. Two years ago, researchers in the United States discovered that half of the liver cancers in these areas had mutant P53 in the suppressor gene of the tumor. Now