1. Parkinson's Disease
... in a few families with extraordinarily high incidences of Parkinson's, most researchers believe that in the vast majority of cases, genetic factors alone are not responsible for causing the disease. Instead, it is suspected that Parkinson's usually results from the combination of a genetic predisposition and an as yet unidentified environmental trigger. ... contribution to Parkinson's is not well characterized according to Dr. Rocca (Walter A. Rocca M.D., Neurology Reviews, Sept. 2001, The Cause of Parkinson Disease: One Doctor's View). "There are a number of families where the gene seem...
- Word Count: 2274
- Approx Pages: 9
- Grade Level: Undergraduate