A genetically altered pig kidney transplanted into a brain-dead man has continued to function for 32 days, an advance toward the possible use of animal organs in humans, surgeons at NYU Langone Health said Wednesday. The kidney was not rejected in the minutes after it was transplanted — a problem in xenotransplantation, the use of organs from a different species. It began producing urine and took over the functions of a human kidney such as filtering toxins, the physicians said at a news conference. (The Washington Post)