Hereditary hearing loss: from human mutation to mechanism

Hear Res. 2011 Nov;281(1-2):3-10. doi: 10.1016/j.heares.2011.05.021. Epub 2011 Jun 6.


The genetic heterogeneity of hereditary hearing loss is thus far represented by hundreds of genes encoding a large variety of proteins. Mutations in these genes have been discovered for patients with different modes of inheritance and types of hearing loss, ranging from syndromic to non-syndromic and mild to profound. In many cases, the mechanisms whereby the mutations lead to hearing loss have been partly elucidated using cell culture systems and mouse and other animal models. The discovery of the genes has completely changed the practice of genetic counseling in this area, providing potential diagnosis in many cases that can be coupled with clinical phenotypes and offer predictive information for families. In this review we provide three examples of gene discovery in families with hereditary hearing loss, all associated with elucidation of some of the mechanisms leading to hair cell degeneration and pathology of deafness.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Animals
  • Genetic Testing
  • Hair Cells, Auditory / pathology*
  • Hearing Loss / genetics*
  • Hearing Loss / pathology
  • Heredity
  • Humans
  • Membrane Proteins / genetics
  • MicroRNAs
  • Microfilament Proteins / genetics
  • Mutation*
  • Pedigree
  • Phenotype
  • Zonula Occludens-2 Protein


  • MIRN96 microRNA, human
  • Membrane Proteins
  • MicroRNAs
  • Microfilament Proteins
  • TJP2 protein, human
  • TRIOBP protein, human
  • Tjp2 protein, mouse
  • Zonula Occludens-2 Protein