hours performing the world first. scientists had spent decades building to this moment, which some believe could revolutionise transplantation. the recipient was david bennett, seen here with his son and daughter. he was dying of heart failure and too ill to be considered for a human organ. and here is david with his surgeon. he s said to be doing well, although it s unclear how long his new heart will last. we ve never done this in a human, and i like to think that we have given him a better option than what continuing his therapy would have been. but whether it s a day, week, month, year, i don t know. the science involved gene editing pig embryos. four pig genes were deactivated, knocked out, this included one to stop the heart from growing too large once transplanted. six human genes were added
surgeons in maryland spent eight hours performing the world first. scientists have spent decades building to this moment, which some believe could revolutionise transplantation. the recipient was david bennett, seen here with his son and daughter. he was dying of heart failure and too ill to be considered for a human organ. and here is david with his surgeon. he is said to be doing well, although it s unclear how long his new heart will last. we ve never done this in a human. and i like to think that we have given him a better option than what continuing his therapy would have been. but whether it s a day, week, month, year, i don t know. the science involved gene editing pig embryos. four pig genes were deactivated, knocked out, this included one to stop the heart from growing too large once transplanted.