Transcutaneous Submandibular Gland Biopsy: Feasibility of Repeat Biopsy as a Progression Marker for Parkinson's Disease
Scottsdale/Phoenix, AZ
The purpose of this study is to perform biopsies of one of the glands that make saliva. The biopsied tissue will then be analyzed to see if it has changes that occur in Parkinson's disease. This study will determine whether it is possible to do a second biopsy a few years after a previous biopsy and determine whether there are changes in the biopsy that would allow for analysis of disease progression.