Mutations In GCH1 Gene May Cause Earlier Disease Onset And Involuntary Foot Muscle Contractions In Patients With Parkinson’s Disease Or Dopa-Responsive Dystonia, Study Suggests.

Parkinson’s News Today (7/5, Lopes) reports researchers found that “earlier disease onset and involuntary foot muscle contractions may be a consequence of mutations in the GCH1 gene in both Parkinson’s patients and those with dopa-responsive dystonia (DR...