DCTN1 mutation analysis in families with progressive supranuclear palsy-like phenotypes.
JAMA Neurol
; 71(2): 208-15, 2014 Feb.
Article
en En
| MEDLINE
| ID: mdl-24343258
IMPORTANCE: Progressive supranuclear palsy (PSP) is usually sporadic, but few pedigrees with familial clustering of PSP-like phenotypes have been described. Occasionally, MAPT, C9ORF72, and TARDBP mutations have been identified. OBJECTIVE: To analyze the DCTN1 gene in 19 families with a clinical phenotype of PSP (PSP-like phenotype). DESIGN, SETTING, AND PARTICIPANTS: Sequencing of the DCTN1 gene in familial forms of PSP at a referral center among 21 patients with familial PSP-like phenotypes. In addition, 8 patients and relatives from a family carrying a DCTN1 mutation were evaluated. MAIN OUTCOMES AND MEASURES: Identification of the DCTN1 mutation and clinical description of DCTN1 mutation carriers. RESULTS: We identified a DCTN1 mutation in a large family characterized by high intrafamilial clinical phenotype variability. Two patients had PSP-like phenotypes with dystonia, vertical gaze slowness, dysexecutive syndrome, predominant axial rigidity, and midbrain atrophy on brain magnetic resonance imaging. The other patients manifested Perry syndrome, isolated parkinsonism, or a predominant behavioral variant of frontotemporal dementia. CONCLUSIONS AND RELEVANCE: Mutations of the DCTN1 gene have been previously associated with amyotrophic lateral sclerosis and with Perry syndrome, a rare autosomal dominant disorder characterized by weight loss, parkinsonism, central hypoventilation, and psychiatric disturbances. Our study demonstrates that DCTN1 mutations should be searched for in patients with clinical PSP-like phenotypes and a behavioral variant of frontotemporal dementia, especially when a familial history of dementia, psychiatric disturbances, associated parkinsonism, or an autosomal dominant disorder is present.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Fenotipo
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Parálisis Supranuclear Progresiva
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Análisis Mutacional de ADN
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Mutación Puntual
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Proteínas Asociadas a Microtúbulos
Tipo de estudio:
Prognostic_studies
Límite:
Adult
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
JAMA Neurol
Año:
2014
Tipo del documento:
Article
Pais de publicación:
Estados Unidos