Without arteries delivering oxygen and nutrition and clearing out waste materials.

Case Western Reserve University researchers intensify to National Institutes of Health challenge Futuristic plans to grow replacement organs, bones or muscles for soldiers maimed in the battlefield or patients suffering from debilitating disease or injury will not be anything but science fiction unless new blood vessels can grow into that tissue. Without arteries delivering oxygen and nutrition and clearing out waste materials, any substitute parts would starve slow heartbeat . Holding out stimulus money as an incentive, the National Institutes of Wellness challenged investigators in the united states to create formulas to build vascular systems in engineered cells.