The general objective of this work is to investigate the physiology and biophysics of cochlear transducer processes. Within this framework the efforts are concentrated on the delineation of the properties and function of stimulus-related cochlear potentials, and on the assessment of the role of the two receptor cell populations, inner and outer hair cells. These goals are pursued by a combined application of physiological (gross potential recording, single hair cell recording, and single nerve fiber recording), behavioral and histological measurements.

Agency
National Institute of Health (NIH)
Institute
National Institute on Deafness and Other Communication Disorders (NIDCD)
Type
Research Project (R01)
Project #
8R01DC000089-19
Application #
3215633
Study Section
Hearing Research Study Section (HAR)
Project Start
1979-01-01
Project End
1990-12-31
Budget Start
1989-01-01
Budget End
1989-12-31
Support Year
19
Fiscal Year
1989
Total Cost
Indirect Cost
Name
Northwestern University at Chicago
Department
Type
Schools of Arts and Sciences
DUNS #
City
Evanston
State
IL
Country
United States
Zip Code
60208
Wiwatpanit, Teerawat; Lorenzen, Sarah M; CantĂș, Jorge A et al. (2018) Trans-differentiation of outer hair cells into inner hair cells in the absence of INSM1. Nature 563:691-695
Takahashi, Satoe; Sun, Willy; Zhou, Yingjie et al. (2018) Prestin Contributes to Membrane Compartmentalization and Is Required for Normal Innervation of Outer Hair Cells. Front Cell Neurosci 12:211
Wiwatpanit, Teerawat; Remis, Natalie N; Ahmad, Aisha et al. (2018) Codeficiency of Lysosomal Mucolipins 3 and 1 in Cochlear Hair Cells Diminishes Outer Hair Cell Longevity and Accelerates Age-Related Hearing Loss. J Neurosci 38:3177-3189
Xu, Yingyue; Cheatham, Mary Ann; Siegel, Jonathan H (2017) Identifying the Origin of Effects of Contralateral Noise on Transient Evoked Otoacoustic Emissions in Unanesthetized Mice. J Assoc Res Otolaryngol 18:543-553
Takahashi, Satoe; Homma, Kazuaki; Zhou, Yingjie et al. (2016) Susceptibility of outer hair cells to cholesterol chelator 2-hydroxypropyl-?-cyclodextrine is prestin-dependent. Sci Rep 6:21973
Takahashi, Satoe; Cheatham, Mary Ann; Zheng, Jing et al. (2016) The R130S mutation significantly affects the function of prestin, the outer hair cell motor protein. J Mol Med (Berl) 94:1053-62
Cheatham, Mary Ann; Ahmad, Aisha; Zhou, Yingjie et al. (2016) Increased Spontaneous Otoacoustic Emissions in Mice with a Detached Tectorial Membrane. J Assoc Res Otolaryngol 17:81-8
Cheatham, Mary Ann; Edge, Roxanne M; Homma, Kazuaki et al. (2015) Prestin-Dependence of Outer Hair Cell Survival and Partial Rescue of Outer Hair Cell Loss in PrestinV499G/Y501H Knockin Mice. PLoS One 10:e0145428
Keller, Jacob Pearson; Homma, Kazuaki; Duan, Chongwen et al. (2014) Functional regulation of the SLC26-family protein prestin by calcium/calmodulin. J Neurosci 34:1325-32
Homma, Kazuaki; Duan, Chongwen; Zheng, Jing et al. (2013) The V499G/Y501H mutation impairs fast motor kinetics of prestin and has significance for defining functional independence of individual prestin subunits. J Biol Chem 288:2452-63

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