“如果年轻时我知道吸烟导致的基因突变一生都会跟随着我,那么我绝不会开始吸烟。”
The study, in the journal Science, was carried out by an international group, including the Wellcome Trust Sanger Institute in Cambridgeshire and the Los Alamos National Laboratory in New Mexico.
这项研究发表在《科学》期刊上,由一个国际研究组研究得出,包括英国剑桥郡的基金会桑格研究院,以及美国新墨西哥州的洛斯阿拉莫斯国家实验室。
The analysis shows a direct link between the number of cigarettes smoked in a lifetime and the number of mutations in tumour DNA.
研究显示,人一生中吸烟的总数量和肿瘤DNA变异的数量之间存在直接关系。
The authors found that, on average, smoking a packet of cigarettes a day led to:
研究作者发现,平均来讲,每天吸一包烟会导致:
150 mutations in each lung cell every year
每年每个肺部细胞中有150个基因突变。
97 in the larynx or voice box
喉部或喉头97个突变
23 in the mouth
口腔部位23个突变
18 in the bladder
膀胱18个突变
six in the liver
肝脏6个突变
Joint lead author Prof Sir Mike Stratton, from the Wellcome Trust Sanger Institute, said: "The more mutations there are, the higher the chance that these will occur in the key genes that we call cancer genes, which convert a normal cell into a cancer cell."
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