Epigenetic marker could predict fetal loss in IVF

A paper from Chinese and U.S. researchers on an epigenetic marker that could identify fetal loss during in vitro fertilization shows embryo research is marching forward despite ongoing ethical controversy.

While the role of individual genes in embryogenesis has not been widely studied due to the ethical implications of research on human embryos, last year a U.K. group used CRISPR to study early embryogenesis, after U.S. and Chinese teams reported CRISPR-Cas9 gene editing in human embryos (see "Editing Without Translation")...