My wife's blog friend has a German Shepherd dog who couldn't walk anymore.
She took the dog to Kyoto University Vet.
They happened to be doing research on regenerative nerve treatment, and that is what the Shepherd needed. They tried experimental treatment, now the dog is able to go camping and swimming.
How cool is that? The Professor who came up with the treatment? The same guy who just won the Noble prize,Yamanaka-san.
Below is the Japanese blog, its a Google translation which is very poor, but you can get the idea.