Scientists at the Mayo Clinic College of Medicine report they have identified a gene they believe is responsible for 3 percent for Parkinson's disease cases. That's not a huge number, but the finding is significant because the causes of Parkinson's remain largely mysterious, and there's no cure available for the 1 million American's who suffer from the disease. The gene is called alpha-synuclein, or SNCA, and it might play a role in a wider range of Parkinson's cases as well, the researchers said, according to HealthDay:
