Let's grow organs

This week's news about researchers growing a new heart from baby cells was exciting, no doubt - a team of researchers from the University of Minnesota, led by Doris Taylor, grew a beating rat heart by adding heart cells from newborn rats to the scaffolding of a dead rat's heart. After only two weeks, the authors report in this month's Nature Medicine, the organ began conducting electrical impulses and pumping blood. The achievement, researchers said, suggests scientists could one day linkurl:gr