CRISPR gene-editing could result in more successful birth rates

Usually, this type of study is conducted on mice, which are easier to come by and carry less ethical considerations. But, in this case, scientists knocked out the gene in 41 human embryos donated by couples who had undergone in-vitro fertilization (IVF). The researchers claim the switch allowed them to highlight key differences between the role of OCT4 in human and mouse models. The team are