Geron (GERN) said that researchers have been able to make human embryonic stem cells differentiate into clusters that secrete insulin in response to elevated sugar levels. The company thinks that it is feasible to produce therapeutic cells to treat Type 1 or juvenile diabetes, and they will now go on to animal tests.

If you need an example of "hero" just talk to a kid who has been waking up in the middle of the night from the age of one (or less) to have a finger pricked, blood tested and an insulin injection. It's also the last thing they do at night and the way they greet the day. I think "hero" can be expanded to include the parents, too. Stem cell therapy would be a great advancement in treating this disease.