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1 results

  • MicroRNAs in acquired sensorineural hearing loss

  • H H R Chen, P Wijesinghe, D A Nunez
  • Journal:
    The Journal of Laryngology & Otology / Volume 133 / Issue 8 / August 2019
    Published online by Cambridge University Press:
    30 July 2019, pp. 650-657
    Print publication:
    August 2019
  • Objective

    This review summarises the current literature on the role of microRNAs in presbyacusis (age-related hearing loss) and sudden sensorineural hearing loss.

    Methods

    Medline, PubMed, Web of Science and Embase databases were searched for primary English-language studies, published between 2000 and 2017, which investigated the role of microRNAs in the pathogenesis of presbyacusis or sudden sensorineural hearing loss. Quality of evidence was assessed using the National Institutes of Health quality assessment tool.

    Results

    Nine of 207 identified articles, 6 of good quality, satisfied the review's inclusion criteria. In presbyacusis, microRNAs in pro-apoptotic and autophagy pathways are upregulated, while microRNAs in proliferative and differentiation pathways are downregulated. Evidence for microRNAs having an aetiological role in sudden hearing loss is limited.

    Conclusion

    A shift in microRNA expression, leading to reduced cellular activity and impaired inner-ear homeostasis, may contribute to the pathogenesis of presbyacusis.