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Related Experiment Videos

CHARGE syndrome: an update.

Damien Sanlaville1, Alain Verloes

  • 1INSERM U781, Genetic Department, AP-HP Necker-Enfants Malades Hospital, Paris, France.

European Journal of Human Genetics : EJHG
|February 15, 2007
PubMed
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CHARGE syndrome, a rare genetic disorder, is often caused by CHD7 gene mutations. Key diagnostic clues include Coloboma, Choanal atresia, abnormal semicircular Canals, arhinencephaly, and rhombencephalic dysfunctions.

Area of Science:

  • Genetics
  • Developmental Biology
  • Clinical Medicine

Background:

  • CHARGE syndrome is a rare, typically sporadic autosomal dominant disorder.
  • Mutations in the CHD7 gene are identified in approximately two-thirds of cases.
  • The clinical definition and diagnostic criteria for CHARGE syndrome have evolved over time.

Purpose of the Study:

  • To discuss recent advancements in the phenotypic delineation of CHARGE syndrome.
  • To highlight the critical role of the CHD7 gene in the pathogeny of CHARGE syndrome.
  • To review molecular pathology and genetic heterogeneity within CHARGE syndrome.

Main Methods:

  • Review of recent literature on CHARGE syndrome.
  • Analysis of phenotypic data and genetic findings.

Related Experiment Videos

  • Examination of molecular and cytogenetic evidence.

    • Main Results:

    • The 3C triad (Coloboma-Choanal atresia-abnormal semicircular Canals), arhinencephaly, and rhombencephalic dysfunctions are now recognized as key diagnostic indicators.
    • The CHD7 gene plays a significant role in the pathogenesis of CHARGE syndrome.
    • Evidence suggests genetic heterogeneity contributing to the syndrome's presentation.

    Conclusions:

    • Recent studies have refined the phenotypic spectrum of CHARGE syndrome.
    • Understanding the role of CHD7 is crucial for diagnosis and management.
    • Further research into genetic heterogeneity may uncover additional causative factors.