Passing BBB breakthrough

http://www.sciencedaily.com/releases/2013/02/130204153712.htm
on the face of it this could be very important indeed - Research - what do you think?
A very useful development.It opens up the way to smuggle therapeutic enzymes into neurons to rectify the PD fault. The trick hasn't been shown to work with anything other than idurondase yet and not been shown to work in humans yet. I wonder what the immunological consequences would be too...