Hearing loss in mammals occurs when auditory hair cells, specialized in the detection of sound waves, undergo irreversible damage. However, the mechanism, and in particular the genetic basis of the process, is poorly understood. A study in this issue now shows that functional inactivation of the cyclin D-dependent kinase inhibitor Ink4d results in progressive hearing loss in mice, implicating Cdk inhibitors and inappropriate hair cell proliferation in deafness.
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Baumgartner, B., Harper, J. Deafening cycle. Nat Cell Biol 5, 385–387 (2003). https://doi.org/10.1038/ncb0503-385
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DOI: https://doi.org/10.1038/ncb0503-385
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