BY MARILYNN MARCHIONE
THE ASSOCIATED PRESS
A Chinese researcher claims that he helped make the world’s first genetically edited babies — twin girls born this month whose DNA he said he altered with a powerful new tool capable of rewriting the very blueprint of life.
If true, it would be a profound leap of science and ethics.
A U.S. scientist said he took part in the work in China, but this kind of gene editing is banned in the United States because the DNA changes can pass to future generations and it risks harming other genes.
Many mainstream scientists think it’s too unsafe to try, and some denounced the Chinese report as human experimentation.
The researcher, He Jiankui of Shenzhen, said he altered embryos for seven couples during fertility treatments, with one pregnancy resulting thus far. He said his goal was not to cure or prevent an inherited disease, but to try to bestow a trait that few people naturally have — an ability to resist possible future infection with HIV, the AIDS virus.
He said the parents involved declined to be identified or interviewed, and he would not say where they live or where the work was done.
BY LISA SCHONHAAR
Every day, millions of cells in our bodies “kill” themselves and are quickly removed.
While the mechanism may sound dramatic, it’s for our own good. The process ensures that potentially harmful cells destroy themselves and protects us from diseases.
Cancer cells, however, can protect themselves from self-destruction by ignoring our immune system’s cell-death signals — and that’s precisely what makes them so dangerous.
BY ANTONIO REGALADO
MIT TECHNOLOGY REVIEW
In the wild uproar around an experiment in China that claimed to have created twin girls whose genes were altered to protect them from HIV, there’s something worth knowing—research to improve the next generation of humans is happening in the US, too.
In fact, it’s about to happen at Harvard University.
BY CATHLEEN O’GRADY
If you have ADHD, chances are higher that your siblings do, too. Estimates differ as to how strong the connection is, but the arrows point in the same direction: genetics helps determine someone’s risk for ADHD.