科学家追查白血病病因至子宫时期_英语科普

科学家追查白血病病因至子宫时期

文章来源：未知文章作者：enread 发布时间：2013-04-10 08:29 字体： [大中小]　进入论坛

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Scientists say they have traced the root genetic¹ cause of leukaemia back to early life in the womb.

科学家称，他们追溯白血病的遗传原因至子宫内的早期生命形式。

Cancerous white blood cells

The Institute of Cancer Research experts analysed the entire three billion letter sequence of DNA-coding in identical twins to reveal what sets off the disease.

They hope the findings, published in PNAS journal, could lead to new drugs to fight the condition at source.

Leukaemia is the most common cancer diagnosed in children.

It affects a third of young cancer sufferers and kills 100 children a year in the UK.

The twins studied by the researchers had the most common form of leukaemia that affects children - acute lymphoblastic leukaemia (ALL) which is a cancer of the white blood cells.

It is already known that multiple faulty genes² are linked to the condition and that environmental factors probably act as triggers along the way. But the precise sequence of events leading up to a diagnosis³ of ALL is unclear.

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1 genetic
adj.遗传的，遗传学的
参考例句：
It's very difficult to treat genetic diseases.遗传性疾病治疗起来很困难。 Each daughter cell can receive a full complement of the genetic information.每个子细胞可以收到遗传信息的一个完全补偿物。

2 genes
n.基因( gene的名词复数 )
参考例句：
You have good genes from your parents, so you should live a long time. 你从父母那儿获得优良的基因，所以能够活得很长。来自《简明英汉词典》 Differences will help to reveal the functions of the genes. 它们间的差异将会帮助我们揭开基因多种功能。来自英汉非文学 - 生命科学 - 生物技术的世纪

3 diagnosis
n.诊断，诊断结果，调查分析，判断
参考例句：
His symptoms gave no obvious pointer to a possible diagnosis.他的症状无法作出明确的诊断。 The engineer made a complete diagnosis of the bridge's collapse.工程师对桥的倒塌做一次彻底的调查分析。

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