A group of doctors and scientists say a paralyzed man has been able to walk again after surgery in which nerve cells from his nasal cavity were transplanted into his spinal cord. Darek Fidyka, a 38-year-old Bulgarian who was left paralyzed from the chest down when he was stabbed in an attack in 2010, is now able to walk again using a frame, and he's regained feeling in his legs, doctors say. But some experts warn that the medical evidence is far from conclusive, and it would be wrong to give false hope to people expecting a cure for paralysis. Read more http://www.webmd.com/brain/news/20141021/nerve-cells-paralysis