The United Kingdom became the first nation in the world in 2015 to pass legislation specifically regulating methods for assisting in the prevention of pregnant women passing on defects to their offspring caused by mitochondria, the cell's energy source. Diseases like muscular dystrophy, epilepsy, heart problems, and intellectual disabilities can be caused by the genetic defects. A mitochondrial disorder affects about one in 200 British children. 32 patients have been granted permission to receive this treatment thus far.
Scientists take genetic material from a woman's egg or embryo with defective mitochondria and transfer it into a donor egg or embryo that still has healthy mitochondria but has had the rest of its key DNA removed. After that, the fertilized embryo is moved into the mother's womb. Using this method, less than one percent of the child's genetic material comes from the donated egg.
"Mitochondrial gift treatment offers families with extreme acquired mitochondrial disease the chance of a sound youngster," the UK ripeness controller said in a proclamation Wednesday. The agency stated that it was still "early days," but it hoped that the treatment's specifics would soon be published by the Newcastle University scientists involved. England requires each lady going through the treatment to get endorsement from the Human Preparation and Embryology Authority. According to the regulator, families must not have any other options for preventing the transmission of genetic diseases in order to be eligible.
Many critics oppose the methods of artificial reproduction, arguing that the experimental methods have not yet been proven safe and that people can avoid passing diseases to their children through other means, such as egg donation or screening tests. Others warn that altering the genetic code in this way could lead to designer babies for parents who desire taller, smarter, or more attractive children.
Expert in stem cells in London Robin Lovell-Badge said it would be crucial to keep an eye on how the babies grow up. How well the method worked will be interesting to learn. whether there is a possibility that they will have issues in the future. In 2016, after the treatment was carried out in Mexico, doctors in the United States announced the birth of the world's first baby using the mitochondria donation technique.