Gene editing of human embryos gets rid of a mutation that causes heart failure
Success in correcting DNA defect inches use of CRISPR closer to clinical trial
![fertilized human eggs and embryos](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2017/08/080217_TI_embryo-editing_main.jpg?fit=860%2C460&ssl=1)
IN GOOD REPAIR CRISPR/Cas9 has corrected a gene defect in fertilized human eggs (left) without hampering embryo development. Four-cell embryos (middle) and blastocyst-stage embryos — about five days old — (right) carrying the CRISPR/Cas9 gene editor appear normal.
OHSU