The treatment was pioneered 28 years ago in Sweden, but two trials in the US reported no significant benefit within the first two years following the injections, and the procedure was abandoned in favour of deep brain stimulation treatments.

What these trials overlooked is that it takes several years for fetal cells to "bed in" and connect properly to the recipient's brain. Many Swedish and North American recipients improved dramatically, around three years or more after the implants – long after the trials had finished. "In the best cases, patients who had the treatment pretty much went back to normal," says Barker.

28 years ago this was tried and it took until now to find out that the patients who got the first stem cells took 3 years to recover back to normal. Geez! What a waste of precious time! Now that we've figured out that we don't need fetal cells but can use stem cells, why isn't this being done with vigor?

Maybe it's time the prisoners (PWP) run the prison! I think if PWP took more control of research more would get done sooner!

http://www.cureparkinsons.org.uk/News/fetalcells