Two coauthors of a new study discuss their findings about nearly 170 facilities in the southwestern US selling unproven therapies—and what should be done about them.
Age-related macular degeneration patients who received injections of retinal cells derived from donors’ induced pluripotent stem cells have maintained their level of eyesight for a year.
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.