国产热热热精品,亚洲视频久久】日韩,三级婷婷在线久久,99人妻精品视频,精品九热人人肉肉在线,AV东京热一区二区,91po在线视频观看,久久激情宗合,青青草黄色手机视频

WORLD> America
Source: Obama to reverse limits on stem cell work
(Agencies)
Updated: 2009-03-07 14:32

"America's biomedical research enterprise experienced steady decline over the past eight years, with shrinking budgets and policies that elevated ideology over science. This slowed the pace of discovery and the search for cures," said Sean Morrison, director of the University of Michigan's Center for Stem Cell Biology.

Critics immediately denounced the move.

"Taxpayers should not have to foot the bill for experiments that require the destruction of human life," said Tony Perkins of the conservative Family Research Council. "President Obama's policy change is especially troubling given the significant adult stem cell advances that are being used to treat patients now without harming or destroying human embryos."

Related readings:
US approves 1st stem cell study
Stem-cell boosters 'impossible'
Leap forward on stem cell harvests
Bush vetoes embryonic stem cell bill

Indeed, there are different types of stem cells: So-called adult stem cells that produce a specific type of tissue; younger stem cells found floating in amniotic fluid or the placenta. Scientists even have learned to reprogram certain cells to behave like stem cells.

But even researchers who work with varying types consider embryonic stem cells the most flexible and thus most promising form -- and say that science, not politics, should ultimately judge.

"Science works best and patients are served best by having all the tools at our disposal," Daley said.

Obama made it clear during the campaign he would overturn Bush's directive.

During the campaign, Obama said, "I strongly support expanding research on stem cells. I believe that the restrictions that President Bush has placed on funding of human embryonic stem cell research have handcuffed our scientists and hindered our ability to compete with other nations."

He said he would lift Bush's ban and "ensure that all research on stem cells is conducted ethically and with rigorous oversight."

"Patients and people who've been patient advocates are going to be really happy," said Amy Comstock Rick of the Coalition for the Advancement of Medical Research.

The ruling will bring one immediate change: As of Monday, scientists who've had to meticulously keep separate their federally funded research and their privately funded stem cell work -- from buying separate microscopes to even setting up labs in different buildings -- won't have that expensive hurdle anymore.

Next, scientists can start applying for research grants from the National Institutes of Health. The NIH already has begun writing guidelines that, among other things, are expected to demand that the cells being used were derived with proper informed consent from the woman or couple who donated the original embryo.

   Previous page 1 2 Next Page  

香港 | 永靖县| 科尔| 介休市| 呼伦贝尔市| 海南省| 潼南县| 禹城市| 松江区| 崇文区| 左贡县| 郓城县| 伊金霍洛旗| 乐亭县| 盈江县| 湘阴县| 鄂托克旗| 澎湖县| 昭平县| 本溪市| 比如县| 鹰潭市| 宜兰市| 肇庆市| 辛集市| 和平县| 乌兰浩特市| SHOW| 潼南县| 抚顺市| 贵港市| 财经| 汉川市| 若羌县| 安义县| 太白县| 阿拉善右旗| 江川县| 泽州县| 大悟县| 习水县|