Early embryos can yield stem cells... and survive. Could extraction technique resolve ethical problems?

Source: Nature
Posted: August 23, 2006

Summary:

A single cell can be teased from a human embryo and used to produce stem cells while leaving the embryo intact. The process, published online in Nature this week, could enable stem-cell lines to be generated without the controversial destruction of human embryos — but some ethical objections remain. The discovery shows that stem-cell lines can be grown from less developed embryos — balls of eight to ten cells — and the process could leave them unscarred.