The stem cell–derived transplants were stable for 24 months and led to wide-ranging behavioral improvements in the monkeys.  

The first human experiment with neural precursor cells implanted to treat chronic spinal cord injury suggests the procedure is safe, and hints at a small benefit.  

Doctors treated the fetus, who has alpha thalassemia major, with cells from her mother’s bone marrow.

Determining which products of advanced biotechnology are deserving of legal protections is essential to our own social architecture.

Brain organoids engineered to carry the genetic material could reveal how our brains are similar to and different from those of our closest relatives.

Two patients became legally blind after receiving treatments at the facilities.

Researchers stumbled across the connection while searching for ways to reduce vision problems in people with achromatopsia.

For the first time, a transplant of replacement tissue grown from stem cells has been shown to be feasible for patients with macular degeneration.

Cell implants, gene therapy, even optogenetics are making headway in clinical trials to treat various forms of blindness.  

The Scientist looks at one such Houston-based purveyor that has been treating patients abroad for years with mesenchymal stem cells.