Complete genomic screen in parkinson disease evidence for multiple genes

William K. Scott, Martha A. Nance, Ray L. Watts, Jean P. Hubble, William C. Koller, Kelly Lyons, Rajesh Pahwa, Matthew B. Stern, Amy Colcher, Bradley C. Hiner, Joseph Jankovic, William G. Ondo, Fred H. Allen, Christopher G. Goetz, Gary W. Small, Donna Masterman, Frank Mastaglia, Nigel G. Laing, Jeffrey M. Stajich, Brandon SlotterbeckMichael W. Booze, Robert C. Ribble, Evadnie Rampersaud, Sandra G. West, Rachel A. Gibson, Lefkos T. Middleton, Allen D. Roses, Jonathan L. Haines, Burton L. Scott, Jeffery M. Vance, Margaret A. Pericak-Vance

Research output: Contribution to journalArticle

257 Scopus citations

Abstract

Context The relative contribution of genes vs environment in idiopathic Parkinson disease (PD) is controversial. Although genetic studies have identified 2 genes in which mutations cause rare single-gene variants of PD and observational studies have suggested a genetic component, twin studies have suggested that little genetic contribution exists in the common forms of PD. Objective To identify genetic risk factors for idiopathic PD. Design, Setting, and Participants Genetic linkage study conducted 1995-2000 in which a complete genomic screen (n = 344 markers) was performed in 174 families with multiple individuals diagnosed as having idiopathic PD, identified through probands in 13 clinic populations in the continental United States and Australia. A total of 870 family members were studied: 378 diagnosed as having PD, 379 unaffected by PD, and 113 with unclear status. Main Outcome Measures Logarithm of odds (lod) scores generated from parametric and nonparametric genetic linkage analysis. Results Two-point parametric maximum parametric lod score (MLOD) and multipoint nonparametric lod score (LOD) linkage analysis detected significant evidence for linkage to 5 distinct chromosomal regions: chromosome 6 in the parkin gene (MLOD = 5.07; LOD = 5.47) in families with at least 1 individ ual with PD onset at you nger than 40 years, chromosomes 17q (MLOD = 2.28; LOD = 2.62), 8p (MLOD = 2.01; LOD = 2.22), and 5q (MLOD = 2.39; LOD = 1.50) overall and in families with late-onset PD, and chromosome 9q (MLOD = 1.52; LOD = 2.59) in families with both levodopa-responsive and levodopa-nonresponsive patients. Conclusions Our data suggest that the parkin gene is important in early-onset PD and that multiple genetic factors may be important in the development of idiopathic late-onset PD.

Original languageEnglish (US)
Pages (from-to)2239-2244
Number of pages6
JournalJournal of the American Medical Association
Volume286
Issue number18
DOIs
StatePublished - Nov 14 2001
Externally publishedYes

ASJC Scopus subject areas

  • Medicine(all)

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    Scott, W. K., Nance, M. A., Watts, R. L., Hubble, J. P., Koller, W. C., Lyons, K., Pahwa, R., Stern, M. B., Colcher, A., Hiner, B. C., Jankovic, J., Ondo, W. G., Allen, F. H., Goetz, C. G., Small, G. W., Masterman, D., Mastaglia, F., Laing, N. G., Stajich, J. M., ... Pericak-Vance, M. A. (2001). Complete genomic screen in parkinson disease evidence for multiple genes. Journal of the American Medical Association, 286(18), 2239-2244. https://doi.org/10.1001/jama.286.18.2239