Add Yahoo as a preferred source to see more of our stories on Google. The kidney, pre-transplant, in a perfusion device which is used to circulate a solution that contains the converting enzymes.

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 ...

For those with kidney failure, a transplant is often the greatest promise of a healthier, longer life. Yet thousands wait years for a match that never comes. Incompatibility of blood type is one of ...