Parkinson's drug delivered through port in head
Parkinson's drug administered via a port in the side of the head.
Glial cell line-derived neurotrophic factor could regenerate dying brain cells.
GDNF infused directly to the affected areas with pinpoint accuracy.
Brain scans showed average of 6 years of improvements.
Hope is that GDNF could even reverse the condition.
Placebo group also showed improved symptoms.
Port implant could also be used to administer chemotherapy and other drugs.