Journal
MOVEMENT DISORDERS
Volume 25, Issue 10, Pages 1409-1417Publisher
WILEY-LISS
DOI: 10.1002/mds.23085
Keywords
genetic linkage; Parkinson's disease/Parkinsonism; X-linked Parkinsonism; X-linked spastic paraparesis; tauopathy
Categories
Funding
- Department of Veterans Affairs
- University of Washington
- Mary Gates Research Scholarship
- UW Royalty Research
- NICHD
- MA
- NHGRI
- Morris Udall and Alzheimer's Centers
- NIH
- P Disease Foundation
- American Parkinson Disease Association
- Northwest Collaborative Care
- VA Parkinson Disease Research, Education, and Clinical Center (PADRECC)
- NIH-NINDS
- Schering-Plough Research
- VA Merit
Ask authors/readers for more resources
The parkinsonian syndromes comprise a highly heterogeneous group of disorders. Although 15 loci are linked to predominantly familial Parkinson's disease (PD), additional PD loci are likely to exist. We recently identified a multigenerational family of Danish and German descent in which five males in three generations presented with a unique syndrome characterized by parkinsonian features and variably penetrant spasticity for which X-linked disease transmission was strongly suggested (XPDS). Autopsy in one individual failed to reveal synucleinopathy; however, there was a significant four-repeat tauopathy in the striatum. Our objective was to identify the locus responsible for this unique parkinsonian disorder. Members of the XPDS family were genotyped for markers spanning the X chromosome. Two-point and multipoint linkage analyses were performed and the candidate region refined by analyzing additional markers. A multipoint LOD(max) score of 2.068 was obtained between markers DXS991 and DXS993. Haplotype examination revealed an similar to 20 cM region bounded by markers DXS8042 and DXS1216 that segregated with disease in all affected males and obligate carrier females and was not carried by unaffected at-risk males. To reduce the possibility of a false-positive linkage result, multiple loci and genes associated with other parkinsonian or spasticity syndromes were excluded. In conclusion, we have identified a unique X-linked parkinsonian syndrome with variable spasticity and four-repeat tau pathology, and defined a novel candidate gene locus spanning similar to 28 Mb from Xp11.2-Xq13.3. (C) 2010 Movement Disorder Society
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available