LOL. This was already known in 2003:

A great example of how "good" our medical research functions.
I have to apologise for the stupid thing I said when I criticised the new research for being late. It is true that it was already known in 2003. But the new thing is the delivery of neurosin. In 2003 there was no method known to deliver neurosin into the brain. Now, there is a delivery method for it.