I have recently been diagnosed with a human version of this condition, although it is late onset, around fifty years of age, so it is just starting to affect me. Not in a nodding head kind of way fortunately. More of a "your cerebellum is killing itself" type of thing.
I recently saw an ABC TV piece about a rower that with an associated condition who will be competing in the Rio Paralympics. Apparently I would have a better chance of winning lotto than having this, but such is life.
Like the dog, there is no treatment or cure. I am not aware of any research into my condition either. I'm quite surprised that they state that they don't want to tell the breeder as it may upset them. As it's genetic there is probably a 50% chance of passing it on to any offspring. I have certainly told my son that if he wants to start breeding he needs to make sure he doesn't pass it on.
The positive for the dog is that it's entitled to be euthanaised. When I can no longer walk or swallow I will get to lay in a bed and be fed pulverised food.
Or find a less humane way to end the suffering.
And I will be donating my body to scientific research, just to save on the funeral costs
.