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However,brain cells of Alzheimer's victims die and are not replaced.
VOA: special.2009.09.15
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When cells become more like cells of the mature brain they're said to differentiate into brain cells.
当细胞变得越来越像成熟的脑细胞的时候,我们就称其为分化成了脑细胞
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But skin cells and brain cells and pancreas cells aren't doing the same things.
但皮肤细胞,脑细胞和胰腺细胞,却发挥着完全不同的作用
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Researchers say the speech impediment appears to stem from a defectin the gene that regulates the way brain cells break down and recycle waste products.
VOA: standard.2010.02.11
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This was a huge number for me up until 2 weeks ago Besides the 100 billion neurons in the brain . there are 12-15 thousand cochlear hair cells.
直到两周前，这对我来说还是个庞大的数字,除了这一兆亿个神经元外,还有12，000到15，000个毛细胞。
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Nothing happened when they turned on the light in cells in an area of the brain called the subthalamic nucleus.
VOA: special.2009.04.07
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Why? Because brain cells and pancreas cells are expressing different proteins.
这是为什么呢,因为脑细胞,和胰腺细胞表达不同的蛋白
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It gets worse over time. The disease affects a small area of cells in the middle of the brain.
VOA: special.2009.04.07
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Only cells in your brain make the enzymes that produce certain neuron transmitters that are responsible for brain function.
只有脑细胞产生,促进神经传导的相关酶,由此维持大脑功能
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They used light-sensitive molecules to turn on and off nerve cells in the deep brain structure of mice.
VOA: special.2009.04.07
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Further down the line here, if we looked in the adult brain or spinal cord and other regions we'd find committed progenitor cells.
沿着这条线再往后,如果我们看看成人的大脑,或者脊髓或者其他部位,我们就能找到定向祖细胞
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Research published mainly in nineteen seventy-three had found proteins on the surfaces of nerve cells in the brain.
VOA: special.2010.05.04
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We have tissues like the brain which are assembled to do functions that are different from any other groups of cells in the body.
像我们的脑组织,它们的功能,就截然不同于身体其他部分的细胞功能
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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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Not all the cells are dividing; in fact, cells in your brain don't proliferate at all.
不是所有细胞都能分裂,事实上,脑细胞根本不增殖
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The disease affects a small area of cells in the middle of the brain.
VOA: special.2009.02.03
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There's other viruses that infect cells of the brain, of the kidney, of the liver.
另外还有能感染脑细胞,肾细胞和肝细胞的病毒
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Evidence shows that extended periods of cortisol in the body weakens bones, damages nerve cells in the brain and weakens the body's defense system against disease.
VOA: special.2009.03.24
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If you look throughout the nervous system you would find cells that look different in different regions, because of where they're situated in the brain.
如果你仔细检视神经系统,你会发现不同部位的神经细胞,看起来不一样,这取决于它们在大脑中所处的位置
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Her brain had sticky structures and nerve cells that appeared to be mixed together.
VOA: special.2009.09.15
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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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They produce reactions in the nerve cells in the brain.
VOA: special.2009.04.07
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Some small subsets do but most of the cells in your brain don't proliferate and that's because they get trapped at one portion of the cell cycle.
除了很小一部分以外大部分脑细胞不增殖,这是因为,它们停滞于细胞周期的某个阶段
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It attacks the brain's nerve cells, robs memory and impairs thinking and language skills.
VOA: standard.2009.12.04
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If you go to the right region of an adult brain you might be able to find cells like this but it's more difficult.
如果你在一个成人大脑的正确区域找,你也许能找到这样的细胞,但会更困难一些
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(OMITTED) Your brain registers pain through neurons,special cells that wind through the body.
VOA: standard.2010.05.04
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Hair cells that are inside your brain are very scarce.
毛细胞非常稀少。
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Cells that are within the region that becomes the nervous system become less like the zygote and more like the cells of our brain, neurons and glia, and cells of the mature brain.
位于神经发育区中的细胞,变得越来越不像受精卵,而像脑细胞,神经细胞或神经胶质细胞等等,这些成熟的脑组织中细胞
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I digressed a little from this diagram but I think you've gotten the picture that as I move to more adult organisms, as I move to more specific regions of the brain, for example, I can still find progenitor cells that have some potential.
我不太认同这张图表,不过我认为随着我说到成人机体,你们已经在脑海中有这样的概念了,我在更特异性的区域,比如大脑中,仍能找到有一定潜能的祖细胞
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If these 8 million people , would correspond to the number of neurons in the brain, the equivalent of the hair cells that you could get out of a single cochlea would be equivalent to one person walking down 42nd street.
如果这八百万人,相当于大脑中的神经元数量的话，能从一个耳蜗内取出的毛细胞,就好比是,第42大街上的某位行人。
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