101. Characterization of DCTN1 genetic variability in neurodegeneration
- Author
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Owen A. Ross, Neil Graff-Radford, B. F. Boeve, Jan O. Aasly, Charles H. Adler, Brett H. Keeling, Z. K. Wszolek, Kevin B. Boylan, K. A. Josephs, Stephanie A. Cobb, Marie-Christine Chartier-Harlin, Alain Destée, Mary M. Hulihan, Katrina Gwinn, Matthew J. Farrer, Christian Wider, Jennifer M. Kachergus, Rosa Rademakers, Fayçal Hentati, Ryan J. Uitti, Carles Vilariño-Güell, Justus C. Dachsel, Anna Krygowska-Wajs, Dennis W. Dickson, Alexandra I. Soto-Ortolaza, and Bruce L. Miller
- Subjects
Genetic Markers ,Male ,Pathology ,medicine.medical_specialty ,Genotype ,DNA Mutational Analysis ,Disease ,Biology ,Gene Frequency ,mental disorders ,medicine ,Humans ,Dementia ,Missense mutation ,Genetic Predisposition to Disease ,Genetic Testing ,Amyotrophic lateral sclerosis ,Aged ,Genetic testing ,Aged, 80 and over ,Genetics ,medicine.diagnostic_test ,Amyotrophic Lateral Sclerosis ,Neurodegeneration ,Genetic Variation ,Parkinson Disease ,Dynactin Complex ,Exons ,Articles ,Frontotemporal lobar degeneration ,Middle Aged ,medicine.disease ,nervous system diseases ,DNA-Binding Proteins ,Case-Control Studies ,Mutation ,Female ,Neurology (clinical) ,Human medicine ,Microtubule-Associated Proteins ,Frontotemporal dementia - Abstract
Objective: Recently, mutations in DCTN1 were found to cause Perry syndrome, a parkinsonian disorder with TDP-43-positive pathology. Previously, mutations in DCTN1 were identified in a family with lower motor neuron disease, in amyotrophic lateral sclerosis (ALS), and in a family with ALS/frontotemporal dementia (FTD), suggesting a central role for DCTN1 in neurodegeneration. Methods: In this study we sequenced all DCTN1 exons and exon-intron boundaries in 286 samples diagnosed with Parkinson disease (PD), frontotemporal lobar degeneration (FTLD), or ALS. Results: This analysis revealed 36 novel variants (9 missense, 5 silent, and 22 noncoding). Segregation analysis in families and association studies in PD, FTLD, and ALS case-control series did not identify any variants segregating with disease or associated with increased disease risk. Conclusions: This study suggests that pathogenic mutations in DCTN1 are rare and do not play a common role in the development of Parkinson disease, frontotemporal lobar degeneration, or amyotrophic lateral sclerosis. Neurology (R) 2009; 72: 2024-2028
- Published
- 2009