Creatine as Protection Against Parkinson's

Another study found that feeding rats creatine helped protect them against tetrahydropyridine (MPTP), which produces parkinsonism in animals through impaired energy production. The results were impressive enough for these researchers to conclude,

"These results further implicate metabolic dysfunction in MPTP neurotoxicity and suggest a novel therapeutic approach, which may have applicability in Parkinson's disease."5

http://www.brinkzone.com/general-health/creatine-and-traumatic-brain-injury/