Lab Grown Retinal Cells Implanted Into Blind Mice - And They Work

What if we could reverse degenerative forms of blindness with but an injection of new cells? Stem cell therapies--still promising, if not particularly speedy--may someday do just that. A recent paper in the journal Nature Biotechnology documents the successful implantation of photoreceptor cells, grown from embryonic stem cells, into the retinas of night-blind mice. The cells not only took root, but they remained present six weeks after implantation and formed the necessary neural connections to...