A stem cell gel made by embedding neural stem cells in a mixture of blood clotting protein and growth chemicals. The gel can regenerate broken spinal cord nerves, research has shown. The gel is applied to the site of an injury. In rats with completely severed spinal cords, it produced an 'astonishing degree' of nerve growth. Treated animals which were previously paralysed experienced 'significant' functional improvement and were able to move all the joints of their affected legs.
Using this method, after six weeks the number of axons (nerve fibres) emerging from the injury site exceeded by 200-fold something never seen before.