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, ...

University of Cambridge scientists have used human stem cells to create three-dimensional embryo-like structures that replicate certain aspects of very early human development—including the production ...

For the first time, doctors changed the blood type of human lungs — an experimental step toward creating universal organs that could be transplanted into any patient, regardless of blood type. An ...

Human blood already comes in a bewildering variety of types, but researchers have now identified a new one so rare that only three people on the planet are known to carry it. The finding exposes just ...