More good news on the adult stem cell front. The blind can see. From the story:
Patients blinded in one or both eyes by chemical burns regained their vision after healthy stem cells were extracted from their eyes and reimplanted, according to a report by Italian researchers at a scientific meeting. The tissue was drawn from the limbus, an area at the junction of the cornea and white part of the eye. It was grown on a fibrous tissue, then layered onto the damaged eyes. The cells grew into healthy corneal tissue, transforming disfigured, opaque eyes into functioning ones with normal appearance and color, said researchers led by Graziella Pellegrini of the University of Modena’s Center for Regenerative Medicine...Many of the patients she treated had been blind for years as result of tissue and blood vessels growing over damaged parts of the eye. Some had been through failed surgeries and alternative treatments.
It increasingly seems likely that regenerative medicine will involve mostly involve ethical approaches. As for basic research, the IPSCs are already permitting tailor made, condition specific stem cell lines to be created. No wonder the urgency over ESCR has substantially abated.