http://www.bbc.co.uk/news/health-29935449
Apologies if posted elsewhere.
"Stem cells can be used to heal the damage in the brain caused by Parkinson's disease, according to scientists in Sweden.
They said their study on rats heralded a "huge breakthrough" towards developing effective treatments.
There is no cure for the disease, but medication and brain stimulation can alleviate symptoms.
Parkinson's UK said there were many questions still to be answered before human trials could proceed."