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Genes (Basel) ; 12(6)2021 06 07.
Artigo em Inglês | MEDLINE | ID: mdl-34200357

RESUMO

Chromosome deletions, including band 5q12, have rarely been reported and have been associated with a wide range of clinical manifestations, such as postnatal growth retardation, intellectual disability, hyperactivity, nonspecific ocular defects, facial dysmorphism, and epilepsy. In this study, we describe for the first time a child with growth retardation in which we identified a balanced t(3;10) translocation by conventional cytogenetic analysis in addition to an 8.6 Mb 5q12 deletion through array-CGH. Our results show that the phenotypic abnormalities of a case that had been interpreted as "balanced" by conventional cytogenetics are mainly due to a cryptic deletion, highlighting the need for molecular investigation in subjects with an abnormal phenotype before assuming the cause is an apparently simple cytogenetic rearrangement. Finally, we identify PDE4D and PIK3R1 genes as the two major candidates responsible for the clinical features expressed in our patient.


Assuntos
Deleção Cromossômica , Transtornos Cromossômicos/genética , Cromossomos Humanos Par 5/genética , Transtornos do Crescimento/genética , Transtornos Cromossômicos/patologia , Classe Ia de Fosfatidilinositol 3-Quinase/genética , Hibridização Genômica Comparativa , Nucleotídeo Cíclico Fosfodiesterase do Tipo 4/genética , Feminino , Transtornos do Crescimento/patologia , Humanos , Lactente , Cariotipagem , Fenótipo , Translocação Genética
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