tomsastroblog writes "In a BBC report scientists injected blind hamsters with a solution containing nanoparticles. The result? Nerves re-grew and sight returned. The researchers injected the blind hamsters with a solution of synthetically made peptides; within 24 hours the brain started to heal itself. The peptides were later broken down by the body into a harmless substance and was excreted three to four weeks later. From the article: 'We are looking at this as a step process. If this can be used while operating on humans to mitigate damage during neurosurgery, that would be the first step,'"