The experimental procedure took place in Houston on March 25. It is part of a Phase 2a clinical trial that will test this treatment in 12 adults who have end-stage liver disease (ESLD).

Nelson said she lost 20 pounds within the first six months of the procedure. Courtesy of Brooke Nelson. The procedure is “minimally invasive” but still comes with some risks.

A kidney grown in a genetically altered pig functions normally, scientists reported. The procedure may open the door to a renewable source of desperately needed organs.