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Huntington CAG repeat size does not modify onset age in familial Parkinson's disease: The GenePD study

Lookup NU author(s): Professor David BurnORCiD, Professor Patrick Chinnery

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Abstract

The ATP/ADP ratio reflects mitochondrial function and has been reported to be influenced by the size of the Huntington disease gene (HD) repeat. Impaired mitochondrial function has long been implicated in the pathogenesis of Parkinson's disease (PD), and therefore, we evaluated the relationship of the HD CAG repeat size to PD onset age in a large sample of familial PD cases. PD affected siblings (n = 495), with known onset ages from 248 families, were genotyped for the HD CAG repeat. Genotyping failed in 11 cases leaving 484 for analysis, including 35 LRRK2 carriers. All cases had HD CAG repeats (range, 15-34) below the clinical range for HD, although 5.2% of the sample (n = 25) had repeats in the intermediate range (the intermediate range lower limit = 27; upper limit = 35 repeats), suggesting that the prevalence of intermediate allele carriers in the general population is significant. No relation between the HD CAG repeat size and the age at onset for PD was found in this sample of familial PD. © 2008 Movement Disorder Society.


Publication metadata

Author(s): McNicoll CF, Latourelle JC, MacDonald ME, Lew MF, Suchowersky O, Klein C, Golbe LI, Mark MH, Growdon JH, Wooten GF, Watts RL, Guttman M, Racette BA, Perlmutter JS, Ahmed A, Shill HA, Singer C, Saint-Hilaire MH, Massood T, Huskey KW, DeStefano AL, Gillis T, Mysore J, Goldwurm S, Pezzoli G, Baker KB, Itin I, Litvan I, Nicholson G, Corbett A, Nance M, Drasby E, Isaacson S, Burn DJ, Chinnery PF, Pramstaller PP, Al-Hinti J, Moller AT, Ostergaard K, Sherman SJ, Roxburgh R, Snow B, Slevin JT, Cambi F, Gusella JF, Myers RH

Publication type: Article

Publication status: Published

Journal: Movement Disorders

Year: 2008

Volume: 23

Issue: 11

Pages: 1596-1601

ISSN (print): 0885-3185

ISSN (electronic): 1531-8257

Publisher: John Wiley & Sons, Inc.

URL: http://dx.doi.org/10.1002/mds.22186

DOI: 10.1002/mds.22186


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Funding

Funder referenceFunder name
Hereditary Disease Foundation
Bumpus Foundation
Coalition for the Cure of HDSA
Fondazione Grigioni Per il Morbo di Parkinson
Huntington Society of Canada
Huntington's Disease Society of America
Jerry MacDonald HD research fund
Massachusetts Huntington's Disease Society of America
GTB07001Italian Telethon
P50 NS16367-27PHS
R01 NS36711-09PHS

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