BDNF genetic variants are associated with onset age of familial Parkinson disease: GenePD Study

  • S. Karamohamed
  • , J. C. Latourelle
  • , B. A. Racette
  • , J. S. Perlmutter
  • , G. F. Wooten
  • , M. Lew
  • , C. Klein
  • , H. Shill
  • , L. I. Golbe
  • , M. H. Mark
  • , M. Guttman
  • , G. Nicholson
  • , J. B. Wilk
  • , M. Saint-Hilaire
  • , A. L. DeStefano
  • , R. Prakash
  • , S. Tobin
  • , J. Williamson
  • , O. Suchowersky
  • , N. Labell
  • B. N.J. Growdon, C. Singer, R. Watts, S. Goldwurm, G. Pezzoli, K. B. Baker, M. L. Giroux, P. P. Pramstaller, D. J. Burn, P. Chinnery, S. Sherman, P. Vieregge, I. Litvan, J. F. Gusella, R. H. Myers, A. Parsian

Research output: Contribution to journalArticlepeer-review

67 Scopus citations

Abstract

Brain-derived neurotrophic factor (BDNF) stimulates neuronal growth and protects nigral dopamine neurons in animal models of Parkinson disease (PD). Therefore, BDNF is a candidate gene for PD. The authors investigated five single-nucleotide polymorphisms in 597 cases of familial PD. Homozygosity for the rare allele of the functional BDNF G196A (Val66Met) variant was associated with a 5.3-year older onset age (p = 0.0001). These findings suggest that BDNF may influence PD onset age.

Original languageEnglish
Pages (from-to)1823-1825
Number of pages3
JournalNeurology
Volume65
Issue number11
DOIs
StatePublished - Dec 2005

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