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Autosomal recessive spinocerebellar ataxia 20: Report of a new patient and review of literature

Journal

EUROPEAN JOURNAL OF MEDICAL GENETICS
Volume 60, Issue 2, Pages 118-123

Publisher

ELSEVIER SCIENCE BV
DOI: 10.1016/j.ejmg.2016.11.006

Keywords

Autosomal recessive spinocerebellar ataxia; 20; Hereditary ataxia; SNX14; Autophagy; Cerebellar atrophy

Funding

  1. US National Institutes of Health [1R21NS094047-01]

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Inherited ataxias are an extremely heterogeneous group of disorders. Autosomal recessive spinocerebellar ataxia 20 (SCAR20) is a recently described disorder characterized by intellectual disability, ataxia, coarse facial features, progressive loss of Purkinje cells in the cerebellum and often hearing loss and skeletal abnormalities. Mutations in the gene SNX14, which plays an important role in autophagy, have been found to cause SCAR20. The unique clinical findings of progressive coarsening of facial features makes the clinical phenotype recognizable among the various hereditary ataxias. Here we report on a child with a novel missense mutation in the SNX14 gene that appears to be debilitating for protein conformation, function and review the previously reported cases from 15 families. (C) 2016 Elsevier Masson SAS. All rights reserved.

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