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From the Division of Neurology and Rose Moss Laboratory for Parkinson’s and Neurodegenerative Diseases, Burns and Allen Research Institute, Cedars-Sinai Medical Center, Los Angeles, California (Drs. Waters and Fee, Ms. Figueroa, and Dr. Pulst); Institut fur Humangenetik Justus-Liebig-Universität, Germany (Drs. Müller and Nolte); Western Visayas State University Medical Center, Iloilo City, Philippines (Dr. Advincula); University of Utah Medical Center, Salt Lake City (Dr. Coon); Mayo Clinic, Scottsdale, Arizona (Dr. Evidente); and Departments of Medicine and Neurobiology, David Geffen School of Medicine at University of California, Los Angeles (Dr. Pulst).
* To whom correspondence should be addressed. E-mail: stefan.pulst{at}cshs.org.
Abstract-- The autosomal dominant spinocerebellar ataxias (ADCAs) represent a growing and heterogeneous disease phenotype. Clinical characterization of a three-generation Filipino family segregating a dominant ataxia revealed cerebellar signs and symptoms. After elimination of known spinocerebellar ataxia (SCA) loci, a genome-wide linkage scan revealed a disease locus in a 4-cM region of 19q13, with a 3.89 lod score. This region overlaps and reduces the SCA13 locus. However, this ADCA is clinically distinguishable from SCA13.
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