Parkin-proven disease: common founders but divergent phenotypes.

Published

Journal Article

OBJECTIVE: To compare and contrast clinical and genetic findings in six probands with parkinsonism with a parkin exon 3 438- to 477-bp deletion (Ex3Delta40) to search for evidence of a common founder. METHOD: Clinical review, parkin gene sequencing, dosage studies, and high-resolution genotype/haplotype analysis were performed. RESULTS: All subjects had two or more signs consistent with a diagnosis of possible or probable PD with age at onset younger than 45 years (mean +/- SD 29.3 +/- 10.2 years, range 16 to 42 years). Affected individuals were either homozygotes, compound heterozygotes, or Ex3Delta40 carriers with one normal parkin allele. Haplotype analysis revealed both Ex3Delta40 and Ex7 924 C-->T (R275W) mutations originated from common founders, the former most probably of Irish descent. Although three cases had Ex7 924 C-->T (R275W) and Ex3Delta40 mutations, their clinical presentation and mode of inheritance were variable. CONCLUSION: Parkin mutations on common parkin haplotypes provide testable hypotheses of parkin function in genetically defined parkinsonism.

Full Text

Duke Authors

Cited Authors

  • Lincoln, S; Wiley, J; Lynch, T; Langston, JW; Chen, R; Lang, A; Rogaeva, E; Sa, DS; Munhoz, RP; Harris, J; Marder, K; Klein, C; Bisceglio, G; Hussey, J; West, A; Hulihan, M; Hardy, J; Farrer, M

Published Date

  • May 27, 2003

Published In

Volume / Issue

  • 60 / 10

Start / End Page

  • 1605 - 1610

PubMed ID

  • 12771249

Pubmed Central ID

  • 12771249

Electronic International Standard Serial Number (EISSN)

  • 1526-632X

Digital Object Identifier (DOI)

  • 10.1212/01.wnl.0000064289.49410.a9

Language

  • eng

Conference Location

  • United States