Adult stem cells a promising market

Amid controversies over embryonic stem cell research, drugs using adult cells are already bearing fruit. When it comes to stem cells, the public -- and the media -- tend to focus on embryos. But researchers and analysts say marketable therapies already are emerging from less controversial work with adult stem cells. The stocks of all stem cell companies tend to trade in tandem. That's why the shares of adult stem cell companies also got a boost when the Obama administration decided to loosen restrictions on federal funding for embryonic stem cell research. CNN Money