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The director of its Vaccine Research Center,Gary Nabel, says each antibody blocks the virus from attaching to white blood cells.
VOA: special.2010.07.14
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That there are other molecules in the lipid bilayer and they're important for cells getting information or getting molecules from outside.
还有一些其它分子在这个脂质双分子层上,它们对于细胞接收信息,和接受外来分子十分重要
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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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The test, also known as MRI, involves studying the magnetic signals from all the cells in the body.
VOA: special.2009.01.06
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They found that certain cells, in particular, epithelial cells from monkey kidneys, were very effective at propagating the virus.
他们发现有些细胞,尤其是在猴肾脏的上皮细胞中,这种病毒能够有效地增殖
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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 a big problem and so can you protect these cells that you give to the recipient from attack by the recipient's immune system?
并且至关重要,那么你们想办法保护这些植入受体的细胞,使它们免受免疫系统的排异反应么
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But she was not told that a doctor had taken cells from her body for testing.
VOA: special.2010.07.21
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They're not quite as potent as the cells from earlier because they've now differentiated somewhat.
它们不如早些的细胞有那样多的潜能,因为它们已经分化到一定程度了
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Electric signals start in nerve cells and travel along these fibers to and from the brain.
VOA: special.2009.01.06
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The other is that it's possible to get stem cells from patients, from bone marrow.
另外一个原因就是从病人的骨髓中,取得干细胞是可行的
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Henrietta Lacks did not give her permission for the cells to be taken from her tumor.
VOA: special.2010.07.21
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Cells move from a state of limited differentiation to a state of more differentiation.
细胞从一个有限的分化状态,进入一个更深层次的分化状态
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She helped the family understand the importance of the HeLa cells and accept that the scientific community has gained so much from their use.
VOA: special.2010.07.21
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It's this - its cells in this region here, this inner cell mass that that's the source of embryonic stem cells, cells from inner cell mass here.
就是这个,在这片区域的胚胎细胞,即内细胞群,而胚胎干细胞的来源所在,就是源自这里的内细胞群
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Human genes are normally organized along forty-six chromosomes in our cells, twenty-three from each parent.
VOA: special.2009.09.09
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There's one division, here it shows it at the 16 cell stage and then here, and this transformation as it goes from 16 cells to more like 64 cells.
这是第一次分裂,这里显示的是十六细胞期,然后在这里,在这里胚胎进一步的产生了变化,由十六个细胞分裂为约六十四个
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Scientists say aspirin prevents blood cells called platelets from sticking together to form clots.
VOA: special.2009.10.20
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Adult stem cells are acquired in some fashion from an adult organism.
成人干细胞是用某些方式,从成人体内提取的
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Cancer cells from a patient at the university's hospital were more than just surviving.
VOA: special.2010.07.21
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What if we could just take a few cells from that donor organ, ship them to the site, grow a new organ at the site and then implant it there?
如果我们只需,从供体器官中取一些细胞,把他们放到适当的位置培养出新的器官,就完成了移植过程,这又意味着什么
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At this point,you may be wondering just where these famous HeLa cells came from.
VOA: special.2010.07.21
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Most of you have probably at some point or another learned about the cell cycle, or the process of a cell going from being a single cell to being two cells.
大部分人应该或多或少,学过细胞周期,就是细胞,一分为二的过程
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And the question remains whether her family had a legal or moral right to receive payment after something of monetary value was made from their mother's cells.
VOA: special.2010.07.21
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Organs grown from single cells.
就是将单个细胞培育成为器官
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The cells were taken from the cervix of a woman named Henrietta Lacks.
VOA: special.2010.07.21
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Because this post-synaptic neuron is going to be receiving different signals from different cells, it's decision about what to do next, and the what to do next is either create an actual potential or not create an action potential.
因此突触后神经元可以接收,来自不同细胞的不同信号,然后决定后续反应,后续反应包括产生动作电位,或者不产生动作电位
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Rebecca Skloot says she hopes that scientific companies that have gained from HeLa cells will give back to the family whose ancestor changed the history of medicine.
VOA: special.2010.07.21
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Now I isolated these cells maybe from the head region of the embryo, the region that's going to develop into the brain, so that would be a good place to look if you wanted cells that were going to develop into the brain.
现在我可以从胚胎的头部,分离这些细胞,从就要发育成为大脑的这些部位,这是取得你需要的细胞的绝佳位置,如果你想要发育成大脑的细胞的话
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It turns out that cells receive signals or information from the rest of the body in a variety of ways, but there's one way in particular that's a very useful way for thinking about how cells receive most information.
研究证明,细胞内有很多,接收体内其他部位信号或者信息的方式,但有一种特定的方法十分有用,这种方法使细胞能最大程度地接受信息
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