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But she says it must be shown scientifically that cord blood stem cells cause improvement, and not other reasons.
VOA: special.2011.02.01
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So we needed to come up with another source, a renewable source, so we turned our attention to embryonic stem cells.
因此，我们需要一种替代材料，一种可以再生的材料，我们注意到了胚胎干细胞胚胎干细胞。
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stem cell researchers have found a way to get perfectly usable stem cells from fully grown human beings.
干细胞研究者已经找到了一种方法，
可以从成年人身上获取可用的干细胞。
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Last year,President Obama ended restrictions on the use of federal money for studies of human embryonic stem cells.
VOA: special.2010.11.02
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There's a lot of interest in obtaining stem cells from the blood of the umbilical cord on birth.
从出生时的脐带血中取得一些干细胞,也很有趣
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Doctor Kakarala says the cancer-fighting treatments known as chemotherapy do not control tumors containing cancer stem cells.
VOA: special.2010.06.01
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Embryonic stem cells can give rise to every cell type in the body.
能分化出人体中,各种类型的细胞。
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Stem cells have the ability to grow other cells, such as heart, nerve or brain cells.
VOA: special.2010.06.15
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People are saying stem cells are basically going to be the new miracle drug.
人们常说干细胞将会是新的救命的奇药。
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During an infusion, stem cells enter the body through a vein leading back to the heart.
VOA: special.2011.02.01
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And unfortunately, in order to get those stem cells, that requires killing the embryo.
而不幸的是，要想得到这些干细胞，就需要杀死胚胎。
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Stem cells from very early embryos are able to grow into any tissue in the body.
VOA: special.2009.04.07
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That's been looking at blood stem cells has been a very fruitful way to look for that.
在血液干细胞的研究中,看起来是个有前途的路子
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For example, some scientists hope to use stem cells to replace tissues damaged by disease.
VOA: special.2009.04.14
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It turns out that blood within the umbilical cord is also a rich source of stem cells and again specific to a particular patient.
研究发现脐带血中,也有丰富的干细胞资源,并且对一些特殊的病人有特别的意义
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He heads the first-ever clinical trial of umbilical cord stem cells with cerebral palsy patients.
VOA: special.2011.02.01
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Those stem cells from the blood are capable of becoming all those cells in the blood.
这些血液中的干细胞,能够成为任何血细胞
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For example,some scientists hope to use stem cells to replace tissues damaged by disease.
VOA: special.2010.06.15
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We'll talk in a minute about stem cells that are involved in generation of blood and they develop and they live in the bone marrow.
我们一会儿要说到,和血细胞再生有关的干细胞,它们发育并储存在骨髓中
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The doctor also says researchers could be able to limit the number of cells that can form tumors if they limit the number of normal stem cells.
VOA: special.2010.06.01
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Further down this line here are embryonic or let's say adult brain stem cells.
沿着这条线再往后一些就是胚胎,或者就说是成人脑中的干细胞吧
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The disappearance of cancer stem cells,then, is important for cancer control.
VOA: special.2010.06.01
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It was the first place where the concept of stem cells was developed, in that if one looks carefully one can find immature cells in the bone marrow.
这是干细胞概念的发祥地,如果仔细观察造血系统,就能找到骨髓中的未成熟细胞
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The mixture caused the number of stem cells to decrease.
VOA: special.2010.06.01
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Another concept that's important in thinking about stem cells is potential.
另一个需要重点考虑的概念,就是干细胞的潜能
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Cancer stem cells are found inside tumors.
VOA: special.2010.06.01
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So that's asymmetrical division and that's a property of stem cells.
以上说的就是不对称分裂,是干细胞的性质之一
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In order to attract the rabbit's own stem cells to re-grow the cartilage, channels in the scaffold were filled with a growth factor protein.
VOA: standard.2010.08.11
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The other one is a committed progenitor cell that now somehow has been changed in such a way that it's going to mature and develop into non-stem cells or the cells that make up our bodies, somatic cells.
而另一个子细胞就通过某种变化,成了定向的祖细胞,并将成熟和发育为非干细胞的细胞,就是构成我们身体的细胞,体细胞
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Or maybe I could donate bone marrow and those stem cells could be given to other people in the same way that blood can be given to other people by matching and making sure that immunologically my cells were compatible with you; there's a lot of interest in that.
或者我可以捐献骨髓,而那些干细胞,可以使用和输血同样的方法,通过配型来确认我的免疫细胞和你的匹配,从而把我的干细胞,输入给你,这里面有很多有趣的东西
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