7q11.23 microduplication syndrome: Clinical and neurobehavioral profiling

Research output: Contribution to journalArticlepeer-review

Abstract

7q11.23 Microduplication (dup7q11.23) syndrome is a rare autosomal dominant disorder due to a recurring 1.5 to 1.8 Mb duplication of the Williams–Beuren Syndrome critical region. Dup7q11.23 has been associated with several neuro-behavioral characteristics such as low cognitive and adaptive functioning, expressive language impairment, anxiety problems and autistic features. In the present study, we analyze the clinical features of ten individuals in which array-CGH detected dup7q11.23, spanning from 1.4 to 2.1 Mb. The clinical characteristics associated with dup7q11.23 are discussed with respect to its reciprocal deletion. Consistent with previous studies, we confirm that individuals with dup7q11.23 syndrome do not have a homogeneous clinical profile, although some recurring dysmorphic features were found, including macrocephaly, prominent forehead, elongated palpebral fissures, thin lip vermilion and microstomia. Minor congenital malformations include patent ductus arteriosus, cryptorchidism and pes planus. A common finding is hypotonia and joint laxity, resulting in mild motor delay. Neuropsychological and psychodiagnostic assessment confirm that mild cognitive impairment, expressive language deficits and anxiety are recurring neurobehavioral features. New insights into adaptive, psychopathological and neurodevelopmental profiles are discussed.

Original languageEnglish
Article number839
Pages (from-to)1-19
Number of pages19
JournalBrain Sciences
Volume10
Issue number11
DOIs
Publication statusPublished - Nov 2020

Keywords

  • Anxiety disorder
  • Congenital anomalies
  • Dup7q11.23
  • Duplication
  • Intellectual disability
  • Williams–Beuren Syndrome

ASJC Scopus subject areas

  • Neuroscience(all)

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