Disruption of diacylglycerol kinase delta (DGKD) associated with seizures in humans and mice.
Am J Hum Genet
; 80(4): 792-9, 2007 Apr.
Article
em En
| MEDLINE
| ID: mdl-17357084
ABSTRACT
We report a female patient with a de novo balanced translocation, 46,X,t(X;2)(p11.2;q37)dn, who exhibits seizures, capillary abnormality, developmental delay, infantile hypotonia, and obesity. The 2q37 breakpoint observed in association with the seizure phenotype is of particular interest, because it lies near loci implicated in epilepsy in humans and mice. Fluorescence in situ hybridization mapping of the translocation breakpoints showed that no known genes are disrupted at Xp11.2, whereas diacylglycerol kinase delta (DGKD) is disrupted at 2q37. Expression studies in Drosophila and mouse suggest that DGKD is involved in central nervous system development and function. Electroencephalographic assessment of Dgkd mutant mice revealed abnormal epileptic discharges and electrographic seizures in three of six homozygotes. These findings implicate DGKD disruption by the t(X;2)(p11.2;q37)dn in the observed phenotype and support a more general role for DGKD in the etiology of seizures.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Convulsões
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Translocação Genética
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Anormalidades Múltiplas
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Cromossomos Humanos Par 2
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Diacilglicerol Quinase
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Predisposição Genética para Doença
Tipo de estudo:
Risk_factors_studies
Limite:
Animals
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Female
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Humans
Idioma:
En
Ano de publicação:
2007
Tipo de documento:
Article