An enzyme leads the dance of immortality and death

http://www.smartplanet.com/technology/blog/rethinking-healthcare/an-enzyme-leads-the-dance-of-immortality-and-death/2196/

Now Harvard scientists have opened this door, using telomerase to reverse the aging process in mice. Writing in the journal Nature, a group under Ronald DePinho (above, from Harvard) say they “engineered a knock-in allele” that turned the cap-making process back on, making old mice young again.