One big step for Geron: Therapy that enabled paralyzed rats to walk ready for test on humans, stem-cell firm says

<p>By Steve Johnson, Feb. 24, 2008 (Mercury News)- Fast facts about GeronAfter 13 years of research costing more than $150 million, Geron says it is finally ready to conduct an unprecedented test in people with a treatment made from one of the most controversial substances in science.</p> <p>Using human embryonic stem cells, the Menlo Park company has developed a therapy that enables paralyzed rats to walk and that it claims shows no dangerous side effects in experiments with about 2,000 animals…</p>