"The Mass General transplant team is deeply saddened at the sudden passing of Mr. Rick Slayman," the hospital said in a statement on Saturday. Slayman had received a transplant of a human kidney at the same hospital in 2018 after seven years on dialysis, but the organ failed after five years and he had resumed dialysis treatments. The kidney was provided by eGenesis of Cambridge, Massachusetts, from a pig that had been genetically edited to remove genes harmful to a human recipient and add certain human genes to improve compatibility, according to the hospital. NYU surgeons had previously transplanted pig kidneys into brain-dead people. A University of Maryland team in January 2022 transplanted a genetically modified pig heart into a 57-year-old man with terminal heart disease, but he died two months later.
