Two people in the U.K. are the first ever to receive transfusions of lab-grown red blood cells. The pair are healthy volunteers in the "Recovery and survival of stem cell originated red cells" ...

For the first time, human patients have received transfusions of blood cells that were grown from stem cells in a lab. A clinical trial investigating the safety of the procedure is currently underway, ...

In the lab, it's easier to grow simple balls of cells than complex asymmetrical structures with two distinct ends—like the one million filtering units—nephrons—that make up a human kidney. But new ...