VOA常速英语2007年-Scientists Reprogram Skin Cells to Act Like Emb
时间：2019-01-31 作者：英语课 分类：VOA常速英语2007年（十一月）
20 November 2007
Two separate teams of scientists say they have transformed ordinary human skin cells into ones that look and act like embryonic 2 stem cells.
Laboratory teams at universities in the United States and Japan Tuesday announced the breakthrough, which may someday produce the medical benefits of embryo 1 cloning without political, scientific and ethical 3 controversies 4.
Both teams used a retrovirus to transport four genes 5 into the skin cells, producing ones that mimic 6 embryonic stem cells.
The landmark 7 research is at the experimental stage. Researchers say the new cells are not ready for use in people because the current technique of producing them requires disrupting DNA 8 of the skin cells, which could potentially cause cancer.
The U.S. team reported its findings in the journal Science, and the Japanese scientists reported theirs in the journal Cell.
Advocates of embryonic stem cell research believe it could aid in the treatment of diabetes 9, Alzheimer's disease, spinal 10 cord injuries and other diseases. But opponents, including President Bush, say the research is immoral 11 because it involves destroying a potential human life.
Mr. Bush has limited federal funding of stem cell research. Earlier this year, he vetoed legislation that would have eased restrictions 12 on federally funded medical research that uses stem cells as human embryos 13.
Some information for this report was provided by AFP, AP and Reuters.
- They are engaging in an embryo research.他们正在进行一项胚胎研究。
- The project was barely in embryo.该计划只是个雏形。
- It is still in an embryonic stage.它还处于萌芽阶段。
- The plan,as yet,only exists in embryonic form.这个计划迄今为止还只是在酝酿之中。
- It is necessary to get the youth to have a high ethical concept.必须使青年具有高度的道德观念。
- It was a debate which aroused fervent ethical arguments.那是一场引发强烈的伦理道德争论的辩论。
- We offer no comment on these controversies here. 对于这些争议，我们在这里不作任何评论。 来自英汉非文学 - 历史
- The controversies surrounding population growth are unlikely to subside soon. 围绕着人口增长问题的争论看来不会很快平息。 来自辞典例句
- 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
- A parrot can mimic a person's voice.鹦鹉能学人的声音。
- He used to mimic speech peculiarities of another.他过去总是模仿别人讲话的特点。
- The Russian Revolution represents a landmark in world history.俄国革命是世界历史上的一个里程碑。
- The tower was once a landmark for ships.这座塔曾是船只的陆标。
- DNA is stored in the nucleus of a cell.脱氧核糖核酸储存于细胞的细胞核里。
- Gene mutations are alterations in the DNA code.基因突变是指DNA密码的改变。
- In case of diabetes, physicians advise against the use of sugar.对于糖尿病患者，医生告诫他们不要吃糖。
- Diabetes is caused by a fault in the insulin production of the body.糖尿病是由体內胰岛素分泌失调引起的。
- After three days in Japan,the spinal column becomes extraordinarily flexible.在日本三天，就已经使脊椎骨变得富有弹性了。
- Your spinal column is made up of 24 movable vertebrae.你的脊柱由24个活动的脊椎骨构成。
- She was questioned about his immoral conduct toward her.她被询问过有关他对她的不道德行为的情况。
- It is my belief that nuclear weapons are immoral.我相信使核武器是不邪恶的。
- I found the restrictions irksome. 我对那些限制感到很烦。
- a snaggle of restrictions 杂乱无章的种种限制