Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 1 de 1
Filtrar
Más filtros












Base de datos
Intervalo de año de publicación
1.
Clin Genet ; 105(4): 446-452, 2024 04.
Artículo en Inglés | MEDLINE | ID: mdl-38221848

RESUMEN

A pathogenic GAA repeat expansion in the first intron of the fibroblast growth factor 14 gene (FGF14) has been recently identified as the cause of spinocerebellar ataxia 27B (SCA27B). We herein screened 160 Greek index cases with late-onset cerebellar ataxia (LOCA) for FGF14 repeat expansions using a combination of long-range PCR and bidirectional repeat-primed PCRs. We identified 19 index cases (12%) carrying a pathogenic FGF14 GAA expansion, a diagnostic yield higher than that of previously screened repeat-expansion ataxias in Greek LOCA patients. The age at onset of SCA27B patients was 60.5 ± 12.3 years (range, 34-80). Episodic onset (37%), downbeat nystagmus (32%) and vertigo (26%) were significantly more frequent in FGF14 expansion-positive cases compared to expansion-negative cases. Beyond typical cerebellar signs, SCA27B patients often displayed hyperreflexia (47%) and reduced vibration sense in the lower extremities (42%). The frequency and phenotypic profile of SCA27B in Greek patients was similar to most other previously studied populations. We conclude that FGF14 GAA repeat expansions are the commonest known genetic cause of LOCA in the Greek population and recommend prioritizing testing for FGF14 expansions in the diagnostic algorithm of patients with LOCA.


Asunto(s)
Ataxia Cerebelosa , Ataxias Espinocerebelosas , Degeneraciones Espinocerebelosas , Humanos , Adulto , Persona de Mediana Edad , Anciano , Anciano de 80 o más Años , Ataxia Cerebelosa/diagnóstico , Ataxia Cerebelosa/genética , Grecia/epidemiología , Ataxias Espinocerebelosas/genética , Degeneraciones Espinocerebelosas/genética , Fenotipo , Expansión de Repetición de Trinucleótido/genética
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...