However,brain cells of Alzheimer's victims die and are not replaced.
VOA: special.2009.09.15
That's why people are so excited about embryonic stem cells because in nature they become all the cells of the body.
这就是为什么胚胎干细胞如此让人激动,因为它的天然功能就是变成所有身体细胞
It's really just the result of the virus dividing within cells of your skin, and producing a lot of dead cells.
这便是病毒在皮肤细胞内部,分裂的结果,这个过程会产生大量的死亡细胞
The researchers say the bacteria were grouped together in a thin, but sticky area of cells on the inside of showerheads.
VOA: special.2009.10.13
It varies in its structure among cells of the nervous system but all synapses have some properties in common.
突触结构因神经系统细胞不同而不同,但突触都有某些共同属性
At the same time,though, the two scientists found that the protein can also support the growth of cancer in some cells.
VOA: special.2010.05.18
Individual cells of the pancreas are capable of - of a healthy pancreas are capable of both sensing glucose and secreting insulin.
每一个健康胰腺细胞,都可以感知血液中葡萄糖浓度,并分泌胰岛素
It was also not easy for the family to accept that her cells had fueled an industry worth millions of dollars.
VOA: special.2010.07.21
You could potentially treat cystic fibrosis by providing the correct gene and providing it to all the cells of the lung epithelium.
一种可能的治愈方法是,把正确的基因,导入所有肺上皮细胞
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
We have other ways of protecting; many of our cells are inside our body protected by specialized cells of our skeletal system.
人类有其它的保护机制,我们体内的细胞受,特化的骨骼细胞保护
It gets worse over time. The disease affects a small area of cells in the middle of the brain.
VOA: special.2009.04.07
The cells of this surrounding sheet have become different in some way and they develop into the placenta and the extra embryonic tissues.
环抱在周围的这一层细胞,已经开始逐渐分化,最终成为胎盘,及额外的胚胎组织
The book is a history of science, professional morals and the human story behind a famous line of cells.
VOA: special.2010.07.21
We'll talk about another word for this later, but it's a cell that's going to give rise to all the cells of our body.
我们之后还会再提到,而这个细胞将孕育出,我们身体全部的细胞
They are being honored for their work in the nineteen eighties about the health of cells and the aging process.
VOA: special.2009.10.07
So, Hepatitis is already infecting cells of their liver, their liver is actively making new virus.
乙肝病毒已经感染了他们的肝细胞,他们的肝脏正在迅速地产生新的病毒
Today we tell about one of the most important scientific discoveries of the last century -- the development of HeLa cells.
VOA: special.2010.07.21
Cells of the epithelium are actually "welded" to one another through these junctions called tight junctions.
上皮细胞通过称为紧密连接的胞间连接,"焊接"在一起
In March, President Obama ended restrictions on the use of federal money for research using human embryonic stem cells.
VOA: special.2009.04.07
And this is what's characteristic of smallpox, is that as the virus spreads through your body, it particularly, it particularly affects cells of your skin.
这是天花的特征,当病毒传遍全身时,它特别的,特别地作用于皮肤细胞
Later,the production of this line of cells by companies would grow into an industry worth millions of dollars.
VOA: special.2010.07.21
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
They used light-sensitive molecules to turn on and off nerve cells in the deep brain structure of mice.
VOA: special.2009.04.07
To make insulin, for example, your cells of your pancreas have to be transcribing that gene, it has to be processed, has to be translated into the protein insulin.
举例来说,如果要合成胰岛素,你的胰腺细胞必须先转录那一段基因,然后进行加工,继而翻译成为胰岛素蛋白
The deformed cells block blood vessels and cut off the flow of oxygen to tissue in the body.
VOA: special.2009.12.16
That virus is reproducing inside cells of your respiratory tract.
病毒在你的呼吸道细胞内繁殖
Research published mainly in nineteen seventy-three had found proteins on the surfaces of nerve cells in the brain.
VOA: special.2010.05.04
They might be capable of forming all of the cells of the nervous system; they might still have some potency to form other things that are similar to the nervous system.
它们也许可以生成,所有神经系统的细胞,也许还有一些生成和神经系统类似的,其他东西的潜能
Only cells of your pancreas make insulin, for example.
举例来说,只有胰腺细胞生成胰岛素
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