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J Neurol Neurosurg Psychiatry. 2015 May;86(5):554-61. doi: 10.1136/jnnp-2014-308421. Epub 2014 Aug 18.

The autosomal dominant spinocerebellar ataxias: emerging mechanistic themes suggest pervasive Purkinje cell vulnerability.

Author information

  • 1Department of Vascular Surgery, McGaw Medical Center of Northwestern University, Chicago, Illinois, USA.
  • 2Department of Neurology, The University of Chicago, Chicago, Illinois, USA.

Abstract

The spinocerebellar ataxias are a genetically heterogeneous group of disorders with clinically overlapping phenotypes arising from Purkinje cell degeneration, cerebellar atrophy and varying degrees of degeneration of other grey matter regions. For 22 of the 32 subtypes, a genetic cause has been identified. While recurring themes are emerging, there is no clear correlation between the clinical phenotype or penetrance, the type of genetic defect or the category of the disease mechanism, or the neuronal types involved beyond Purkinje cells. These phenomena suggest that cerebellar Purkinje cells may be a uniquely vulnerable neuronal cell type, more susceptible to a wider variety of genetic/cellular insults than most other neuron types.

KEYWORDS:

Cerebellar Ataxia; Cerebellar Degeneration; Cerebellar Disease; Genetics; Medicine

PMID:
25136055
DOI:
10.1136/jnnp-2014-308421
[PubMed - indexed for MEDLINE]
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