U.S. researcher says he’s ready to start four pregnancies with ‘three-parent’ embryos
Researchers at Columbia University in New York have created embryos containing genetic material from three people and are ready to use them to start pregnancies. But they’re at a legal impasse.
At a public on Wednesday, Dietrich Egli, assistant professor of developmental cell biology at Columbia, said his team has used a controversial technique called mitochondrial replacement therapy to make embryos for four female patients. The women are all carriers of genetic disorders that are
