Rob Stein

Surgeons at Massachusetts General Hospital said they transplanted a genetically edited pig kidney into a living human for the first time. The 62-year-old recipient has end-stage kidney disease.

The National Institutes of Health initiative that aims to make human genome research more inclusive reports its first results. Some 275 million new genetic variations have been identified.

Scientists at a biotech company say they have created a key stem cell for Asian elephants that could help save the endangered species and become a steppingstone for bringing back the woolly mammoth.

Scientists at a biotech company say they have created a key stem cell for Asian elephants that could help save the endangered species and become a steppingstone for bringing back the woolly mammoth.

Scientists are optimistic that gene-edited animals could provide a new source of organs for transplantation. Pig organs modified to minimize rejection are now being tested in humans.

Bioethicists, doctors and lawyers are weighing whether to redefine how someone should be declared dead. A change in criteria for brain death could have wide-ranging implications for patients’ care.

Scientists report that gene therapy restored at least some hearing and speech for five out of six children with a rare form of genetic deafness.

In early December, the Food and Drug Administration approved a gene-editing treatment for sickle cell disease, the first for any illness. One patient helped pave the way.

In early December, the Food and Drug Administration approved a gene-editing treatment for sickle cell disease, the first for any illness. One patient helped pave the way.

An experimental technology that might someday allow infertile couples, as well as gay and trans couples, to have genetically related children stirs hope. So far, the technique has worked in mice.