Research guidelines for embryoids

Human embryo models formed from stem cells—known as embryoids—allow scientists to study the elusive first stages of human development without having experiment on actual embryos. But clear ethical guidelines for research involving embryoids are still lacking. Previously, a handful researchers put forward new recommendations embryoids, which they hope will be included in next set International Society Stem Cell Research guidelines. Although these an improvement over default approach, nonetheless unworkable, because rely poorly conceived notion embryoid’s ‘potential’ trigger stringent regulations.