An article in the New York Times ("Doctors Advance in Helping Body to Repair Itself", by Gina Kolata, 15 January 2002) reviews current work in regenerative medicine, particularly recent research with pancreatic cells and the heart. The article notes comments from a recent editorial in The New England Journal of Medicine which noted that the findings regarding self-repair of the heart had enormous implications, because scientists may be able to prompt that repair. "Such approaches to therapy, which previously were only pipe dreams, are now realistic goals that may soon be within reach."
A previous NYT article on regenerative medicine from 18 December 2001 generated an extensive discussion here on Nanodot.
Note: Access to the NYT site is free, but requires registration.