A new Turkish family with homozygous FBXO7 truncating mutation and juvenile atypical parkinsonism.
Parkinsonism Relat Disord
; 20(11): 1248-52, 2014 Nov.
Article
em En
| MEDLINE
| ID: mdl-25085748
ABSTRACT
Juvenile parkinsonism can be caused by recessive mutations in several genes. Among these, homozygous or compound heterozygous mutations in the F-box only protein 7 gene (FBXO7) cause juvenile parkinsonism with variable degrees of pyramidal disturbances (PARK15). So far, only five families (from Iran, Italy, The Netherlands, Pakistan, and Turkey) have been reported with this form. Here, we describe a new Turkish family with homozygous FBXO7 mutation (c.1492C > T, p.Arg498*). Three out of nine siblings born from consanguineous parents suffered from juvenile-onset progressive parkinsonism. Mental retardation was also documented in two of them. Of note, pyramidal signs were absent. The response to dopaminergic medications was present, but limited by dyskinesias and psychiatric side effects. Further genetic analysis of this Turkish family and the Italian PARK15 family reported previously revealed that the c.1492C > T mutation is present on two different haplotypes in the Italian family, and one of these haplotypes is shared in homozygous state in the Turkish patients. These findings contribute to the ongoing delineation of the genetic and clinical spectrum of PARK15.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Predisposição Genética para Doença
/
Transtornos Parkinsonianos
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Proteínas F-Box
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Homozigoto
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Mutação
Tipo de estudo:
Diagnostic_studies
/
Prognostic_studies
Limite:
Adolescent
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Adult
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Female
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Humans
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Male
País/Região como assunto:
Asia
Idioma:
En
Revista:
Parkinsonism Relat Disord
Assunto da revista:
NEUROLOGIA
Ano de publicação:
2014
Tipo de documento:
Article
País de afiliação:
Turquia