like biodegradable polymer tube. Vitamins and nutrients were pulsed through and around the tube to mimic conditions in the body. As the muscle cells proliferated and the tube dissolved, the scientists added the endothelial cells to complete the vessels which were grown for up to seven weeks. In a commentary in the journal, Eric Brey and Howard Greisler of Loyola University Medical Center in Illinois described the research as an important advance in tissue engineering. "The researchers provide a degree of optimism for the feasibility of clinical applications of engineered blood vessels," they said.
