A group of researchers from the Institute of Bioengineering of Catalonia (IBEC), In collaboration with Dexeus University Hospital, the team has recorded for the first time how a human embryo implants in the uterus. This is a microscopic process that occurs in the body of an adult, so it had never been observed before. "It was like a black box whose inside we were finally able to see," says Samuel Ojosnegros, director of the study.

Ten years after the UK legalized the possibility of using genetic material from three people to obtain a healthy embryo and avoid life-threatening mitochondrial problems, scientists at Newcastle University conducting the first clinical trial of this technique have confirmed the birth of eight healthy babies using this method. Just over two years ago, the UK's Human Fertilization and Embryology Authority (HFEA) confirmed that until April 20, 2023 there were five, those born of two mothers and a father, within the framework of this trial.