A group of Brigham and Women's Hospital, and Harvard Stem Cell Institute researchers and collaborators at MIT and MGH have found a way to use stem cells as drug delivery vehicles.

Researcher Peter Facchini (left) and PhD student Scott Farrow's (right) paper sheds light on how the opium poppy -- the world's only source of the valuable painkillers University of Calgary scientists have discovered metabolic enzymes in the opium poppy that play "widespread roles" in enabling the plant to make painkilling morphine and codeine, and other important compounds.