A decades-long search to identify a mysterious blood antigen has led researchers to a hidden genetic difference found in a ...

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 ...

The 19th-century science fiction novel Frankenstein explores the idea of combining artificial materials with human body components, purely as a matter of imagination. Two centuries later, such ...

Stem cells are precursors of a variety of different cells: They can turn into anything from blood to bone to muscle. Human blood stem cells, known as hematopoietic stem cells, are the forerunners of ...