Here’s how the pig heart was transplanted into the human, according to Dailymail:
- A pig heart was gathered for a terminal heart disease patient who was ineligible for a human heart transplant.
- Scientists inserted six human genes into the genome of the donor pig — modifications designed to make the organ more tolerable to the human immune system.
- They inactivated four genes, including sugar in its cells that is responsible for that hyper-fast organ rejection and a growth gene to prevent the pig’s heart, which weighs around 267g compared to the average human heart which weighs 303g, from continuing to expand.
- Surgeons at the University of Maryland Medical Center performed a nine-hour surgery to remove the patient’s heart and insert the altered pig heart