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Objective: Todetermine the molecular nature of the neurological disease in the seminal family reported by Critchley et al inthe 1960s, characterized by a hyperkineticmovement disorder and the appearance of acanthocytosis on peripheral blood smear. Theeponym Levine-Critchley syndrome, subsequently termed neuroacanthocytosis, has been applied to symptomatically similar, but genetically distinct, disorders, resulting in clinical and diagnostic confusion. Design: DNA analysis. Setting: Molecular biology research laboratories. Participants: First- and second-degree relatives of the original Critchley et al proband from Kentucky. Main Outcome Measures: Mutations in the VPS13A gene. Results: A mutation was identified in the VPS13A gene, responsible for autosomal recessive chorea-acanthocytosis. Haplotype reconstruction suggested that this mutation was homozygous in the proband. Conclusion: These findings strongly support the diagnosis of chorea-acanthocytosis as the disorder described in the original report.

Original publication

DOI

10.1001/archneurol.2011.239

Type

Conference paper

Publication Date

01/10/2011

Volume

68

Pages

1330 - 1333