The sound of silence: mouse models for hearing loss.

Genetics Research International
Sumantra Chatterjee, Thomas Lufkin

Abstract

Sensorineural hearing loss is one of the most common disabilities in humans. It is estimated that about 278 million people worldwide have slight to extreme hearing loss in both ears, which results in an economic loss for the country and personal loss for the individual. It is thus critical to have a deeper understanding of the causes for hearing loss to better manage and treat the affected individuals. The mouse serves as an excellent model to study and recapitulate some of these phenotypes, identify new genes which cause deafness, and to study their roles in vivo and in detail. Mutant mice have been instrumental in elucidating the function and mechanisms of the inner ear. The development and morphogenesis of the inner ear from an ectodermal layer into distinct auditory and vestibular components depends on well-coordinated gene expression and well-orchestrated signaling cascades within the otic vesicle and interactions with surrounding layers of tissues. Any disruption in these pathways can lead to hearing impairment. This review takes a look at some of the genes and their corresponding mice mutants that have shed light on the mechanism governing hearing impairment (HI) in humans.

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Citations

Sep 3, 2020·Journal of Developmental Biology·Makenna J HardyJulia Thom Oxford
Dec 15, 2020·Developmental Biology·Justyna JedrychowskaVladimir Korzh

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Methods Mentioned

BETA
cochlear implants
scanning electron microscopy

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