Abstract
Some questions remain about the growing demand of DNA diagnostics and genetic counselling in Parkinson’s disease. Which subpopulation of patients with Parkinson’s disease harbours the highest risk of mutations in the LRRK2 gene? What is the frequency and penetrance of different LRRK2 mutations? Nine exons (exons 19, 24, 25, 29, 31, 34, 35, 38 and 41) of the LRRK2 gene were screened for sequence …