Congenital Ear and Nasal Anomalies

Mutations in the CHD7 gene disrupt the migration and differentiation of neural crest cells during embryogenesis, producing a constellation of structural anomalies—most notably malformed ears, blocked nasal passages, and broader craniofacial irregularities—collectively recognized as CHARGE syndrome. Because a single gene can generate such a wide range of clinical presentations, establishing consistent diagnostic criteria and understanding how genotype maps onto phenotype remain central preoccupations for researchers and clinicians alike. Associated features like hypogonadotropic hypogonadism reveal that CHD7's reach extends well beyond craniofacial development into neuroendocrine regulation, complicating both diagnosis and patient management. Active work is focused on clarifying the molecular mechanisms by which CHD7 governs chromatin remodeling, with the hope that this will eventually point toward targeted interventions for affected individuals.

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Keywords

CHD7 GeneGenetic MutationsNeural Crest FormationPhenotypic SpectrumDiagnostic CriteriaCraniofacial Development