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由牙齿创建的干细胞 [复制链接]

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离线NERV
 
只看楼主 倒序阅读 楼主  发表于: 2008-08-22
这个是英文的。
Stem cells 'created from teeth'
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Many religious groups object to using embryos for medical research
许多宗教组织反对使用胚胎进行医学研究。
Japanese scientists say they have created human stem cells from tissue taken from the discarded wisdom teeth of a 10-year-old girl.
日本科学家说他们已经从离体的一个10岁女孩的智齿上得到的组织中培养出人类干细胞。
The researchers say their work suggests that wisdom teeth could be a suitable alternative to human embryos as a source for therapeutic stem cells.
研究者说他们的工作表明智齿可以成为一个用人类胚胎培养干细胞的合适的替代。
Research involving stem cells is seen as having the potential to treat many life-threatening diseases.

But some people believe using human embryos is ethically controversial.

The researchers, based at the National Institute of Advanced Industrial Science and Technology (AIST), say it will be at least five years before their findings result in practical medical applications.

Dual benefit

Stem cells have the ability to develop into other kinds of human cells, and experts believe they may eventually lead to treatments for some of the most intractable conditions, such as cancer and diabetes.

The AIST researchers said they had identified a form of stem cell in the wisdom teeth which had the capability to develop and be grown successfully into other forms of cell outside the body.

The cells they harvested continued to grow in the laboratory for just over a month, they added.

The leader of the team, Hajime Ogushi, said the research was significant in two ways.

"One is that we can avoid the ethical issues of stem cells because wisdom teeth are destined to be thrown away anyway," he told the AFP news agency.

"Also, we used teeth that had been extracted three years ago and had been preserved in a freezer. That means that it's easy for us to stock this source of stem cells."

In the US, dentists are starting to offer to store stem cells taken from wisdom teeth and from baby teeth, another potential source, for therapeutic purposes in the future.

Last year, a team of US and Japanese scientists announced they had managed to produce stem cells from skin.
(图片:Coloured scanning electron micrograph (SEM) of groups of embryonic stem cells)
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UN NERV
GOD'S IN HIS HEAVEN,ALL'S RIGHT WITH THE WORLD.

只看该作者 沙发  发表于: 2008-08-23
这个好。。。回来我拔自己一颗牙做一个自己的备份。。。
即使你英勇无畏,也请当心,阿波罗与帕里斯将使你在开埃城门难逃一死。
《伊利亚特》Vol26.33
离线Carneades

只看该作者 板凳  发表于: 2008-08-24
我有一个笔筒,里面装着我小时侯拔下来的许多牙。
我们耕种,我们建筑,学习创造干劲足!
Laßt uns pflügen, laßt uns bauen, lernt und schafft wie nie zuvor!
离线Lucifer

只看该作者 地板  发表于: 2008-08-24
我觉得这个是活细胞。不过,智齿中哪部分是活的?

只看该作者 4楼 发表于: 2008-08-24
回复 板凳 Lucifer 的帖子
当然是牙髓腔部分
即使你英勇无畏,也请当心,阿波罗与帕里斯将使你在开埃城门难逃一死。
《伊利亚特》Vol26.33
离线TCL

只看该作者 5楼 发表于: 2008-08-24
什么时候能让逆反应发生就猛了
直面惨淡的高三,正视淋漓的考卷。
离线hyhhyh
只看该作者 6楼 发表于: 2008-08-25
10岁智齿?我16岁才长的 刚拔的
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