We report a patient with a moderate mental retardation, afebrile seizure, mild dysmorphic features and type 2 diabetes mellitus with mild obesity and metabolic syndrome. Array-CGH analysis revealed a de novo 790-830 kb duplication on chromosome 17p13.1, not reported so far. Among the approximately 50 genes involved in the rearrangement, neuroligin 2 (NLGN2) and ephrin B3 (EFNB3) are candidates for the mental retardation phenotype. NLGN2 may therefore be a novel candidate gene for mental retardation or autistic spectrum disorder, joining other members of the neurexin/neuroligin network. Moreover, GLUT4, a member of the solute carrier family 2, may play a role in the patient's type 2 diabetes.

790 Kb microduplication in chromosome band 17p13.1 associated with intellectual disability, afebrile seizures, dysmorphic features, diabetes, and hypothyroidism

Belligni, Elga Fabia;Di Gregorio, Eleonora;Biamino, Elisa;Calcia, Alessandro;Molinatto, Cristina;Ferrero, Giovanni Battista;Brusco, Alfredo;Cirillo, Margherita
2012

Abstract

We report a patient with a moderate mental retardation, afebrile seizure, mild dysmorphic features and type 2 diabetes mellitus with mild obesity and metabolic syndrome. Array-CGH analysis revealed a de novo 790-830 kb duplication on chromosome 17p13.1, not reported so far. Among the approximately 50 genes involved in the rearrangement, neuroligin 2 (NLGN2) and ephrin B3 (EFNB3) are candidates for the mental retardation phenotype. NLGN2 may therefore be a novel candidate gene for mental retardation or autistic spectrum disorder, joining other members of the neurexin/neuroligin network. Moreover, GLUT4, a member of the solute carrier family 2, may play a role in the patient's type 2 diabetes.
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Microduplication 17p13.1, Intellectual disability, Afebrile seizures, Diabetes, Metabolic syndrome
Belligni, ELGA FABIA; DI GREGORIO, Eleonora; Biamino, Elisa; Calcia, Alessandro; Molinatto, Cristina; Talarico, Flavia; Ferrero, Giovanni Battista; Brusco, Alfredo; Cirillo, Margherita
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2318/102937
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