A 56-year-old man in China made history as the first living person to be connected to a genetically modified pig liver. This surgery took place at Xijing Hospital in Xi’an, helping him while he waited for a human liver transplant. Thankfully, he has since received a human liver and is on the mend.
Dr. Lin Wang, a leader of the surgical team, noted that the pig liver served to filter the man’s blood for several days. The team plans to share the results in a medical journal soon. This groundbreaking procedure is part of a field called xenotransplantation, where animal organs may be used to help people who need transplants. In the U.S. and China, a mix of clinical trials has seen about a dozen patients receive pig organs, including hearts and kidneys.
Surgeons view this pig liver connection as a temporary solution called extracorporeal perfusion. Dr. Wayne Hawthorne, a transplant researcher from the University of Sydney, explains that this method helps patients recover while they wait for a human organ. He emphasizes that this approach can be life-saving, especially for individuals too sick to wait.
Though pigs have been used for these types of procedures since the 1990s, recent advancements in genetic modifications make them safer for human use. A U.S. team has connected four clinically dead patients to pig livers, but this surgery on a living person marks a significant leap forward.
Experts like Dr. Muhammad Mohiuddin, who performed the first pig-heart transplant in a person, believe this technology holds great promise. However, both he and Hawthorne are eager to learn more details about the recent surgery, such as the immune-suppressing drugs used and the man’s health over time.
The man, whose background includes chronic hepatitis B and alcohol-related liver issues, was in a desperate situation. After a month in the hospital, with no human organ available, he and his family agreed to the experimental procedure, which aimed to take over the failing functions of his liver.
The pig liver, supplied by ClonOrgan Biotechnology, had six genetic changes. These included turning off three pig genes and adding three human genes to lessen the chances of rejection. Surgeons connected the liver to the man’s leg through tubes, allowing his blood to flow through and removing toxins that had built up due to his liver failure.
As they monitored the procedure, they saw no signs of rejection, and even noted an improvement in the man’s liver function. This innovation raises hope for the future of organ transplants, potentially lowering the number of patients who wait too long for human organs.
Research in this area continues to grow. A report from the National Institute of Health suggests there is a significant gap between organ availability and demand, with nearly 107,000 people on waiting lists as of today. This stark number highlights the necessity of exploring alternative solutions like xenotransplantation.
As society debates the ethics and effectiveness of such methods, the recent surgery in China stands as a hopeful milestone in reducing the wait for life-saving transplants.
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Biotechnology,Immunology,Medical research,Science,Humanities and Social Sciences,multidisciplinary
