In a world-first, Harvard University's Doug Melton reported in a top journal "curing" diabetes in mice using both embryonic and adult stem cells, meticulously creating perfect beta cells that respond repeatedly to insulin. A similar approach by a different and unrelated group, involving stem cells that were differentiated to slightly less mature beta cells than Melton's before implant, is at the heart of a clinical trial in Type 1 patients. http://www.biosciencetechnology.com/articles/2014/10/embryonic-stem-cells-trial-diabetes