动物实验,器官移植 z-bo 2022-02-22 701

　　Researchers Recently, researchers have successfully implanted pig hearts in baboons, and they are still operating today. So far, primate organ transplants have been rejected for up to 6 months. However, scientists have modified the pig’s DNA to make its heart more compatible with primates and humans. The maturity of this research can greatly alleviate the shortage of domestic organ transplants.

　　Scientists believe that genetically modified pig hearts can be implanted into the human body to solve the problem of insufficient organ donation. Muhammad Mohiuddin of the National Heart, Lung and Blood Institute said: "This technology brings new hope to people who are waiting for organ donation. If the research is successful, this method will change the current scope of transplantation. , To eliminate the shortage of organ donation. Patients in need of transplantation must wait for a proper heart donation. In the UK, only 8 out of eight out of ten patients need a heart donation. You have to wait more than one year, and these attendants need to use artificial hearts to maintain Life, but artificial heart technology is not perfect, they have a series of energy supply and infection. Xenotransplantation technology has been proposed as a life-saving method, but faces the challenge of rejection: their anatomy is consistent with humans, and the reproduction cycle is fast The researchers chose pigs, but the scientists added some human genes to the pig’s genes through genetic engineering and deleted the genes that trigger a dangerous human immune response.

　　However, critics say that the life cycle of pigs is shorter than that of humans, so they need to be replaced and can contract diseases, said Professor Peter Weisberg, medical director of the British Heart Foundation.

　　"The lack of organs makes this technology very possible. We use pig valves for heart surgery. It appeared in the 1990s. This is a similar project. However, it was rejected and stopped. The technology is still very much A long way to go, researchers need to prove that it also applies to humans."