IngentaConnect Parkinson's disease: the genetics of a heterogeneous disorder

Authors: Gosal, D.¹; Ross, O. A.²; Toft, M.

Source: European Journal of Neurology, Volume 13, Number 6, June 2006 , pp. 616-627(12)

Abstract:

Since the first description of Parkinson's disease (PD) in 1817 attempts have been made to resolve the etiology of this common neurodegenerative disorder. In the last century the influence of heredity in PD was controversial. The identification of mutations in six genes responsible for Mendelian forms of PD; α-synuclein (SNCA), parkin (PRKN), ubiquitin C-terminal hydrolase L1 (UCH-L1), oncogene DJ-1, PTEN-induced putative kinase 1 (PINK1), and most recently leucine-rich repeat kinase 2 (LRRK2), has confirmed the role of genetics in familial forms of the disease. The exact relationship of these familial disorders and related genes to the more common sporadic form is currently uncertain. The identification of LRRK2 mutations and the association of common variants in SNCA and UCH-L1 in apparently sporadic late-onset disease indicate these genes may be of greater importance than previously believed. The protein products of the six genes are involved in different pathways of neurodegeneration and have opened new avenues of research. This focused research will lead to the development of novel targeted therapies, which may revolutionize the treatment of PD for a substantial proportion of patients.

Keywords: genetics; neurodegeneration; Parkinson's disease

Document Type: Research article

DOI: 10.1111/j.1468-1331.2006.01336.x

Affiliations: 1: Department of Neurology, Mater Misericordiae University Hospital, Dublin, Ireland 2: Department of Neuroscience, Mayo Clinic College of Medicine, Jacksonville, FL, USA

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