Abstract

The Mouse Auditory Testing Core Facility was created in July 2011 to assist the Principle Investigators of the NIDCD and their collaborators with auditory testing in mice. Two techniques that are widely used in evaluating auditory function in mice and other animals are employed at the facility: auditory brainstem response (ABR) testing and distortion-product otoacoustic emissions (DPOAEs). The ABR is an evoked potential that can be used to estimate hearing thresholds. The ABR is recorded by placing electrodes on the scalp and recording the potentials generated by the auditory nervous system when a sound is repeatedly presented to the ear. DPOAEs are soft sounds produced by normally-functioning ears that can be used to screen for hearing loss or to evaluate inner ear function. The presence of DPOAEs indicates normal function of cells in the inner ear (cochlea) called outer hair cells. DPOAEs are measured by placing a small probe containing two speakers and a microphone in the opening of the ear canal. Two tones are played simultaneously to the ear and the DPOAEs produced by the ear are recorded by the microphone. In the first year of operation, we have expanded the number of test suites available to investigators at the NIDCD from one to two. A new system (Tucker-Davis Technologies) is now operational in the second suite and permits measurement of both ABR and DPOAEs over a larger frequency range than was previously possible with existing equipment. A third suite that will be available for testing mice from outside the 5 Research Court facility is nearing completion. We have assisted with data collection and data analysis on eight projects conducted by investigators within the NIDCD and one project conducted by investigators at the NEI. Thus far, 16 investigators have been trained in ABR and DPOAE test techniques and interpretation. A seminar series addressing basic and advanced issues in auditory testing in mice has been initiated and will continue into the next year.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Institute on Deafness and Other Communication Disorders (NIDCD)
Type
Scientific Cores Intramural Research (ZIC)
Project #
1ZICDC000080-01
Application #
8565585
Study Section
Project Start
Project End
Budget Start
Budget End
Support Year
1
Fiscal Year
2012
Total Cost
$193,157
Indirect Cost

  Institution

Name
National Institute on Deafness and Other Communication Disorders
Department
Type
DUNS #
City
State
Country
Zip Code

  Publications

Nakanishi, Hiroshi; Kurima, Kiyoto; Pan, Bifeng et al. (2018) Tmc2 expression partially restores auditory function in a mouse model of DFNB7/B11 deafness caused by loss of Tmc1 function. Sci Rep 8:12125
Imtiaz, Ayesha; Belyantseva, Inna A; Beirl, Alisha J et al. (2018) CDC14A phosphatase is essential for hearing and male fertility in mouse and human. Hum Mol Genet 27:780-798
Isgrig, Kevin; Shteamer, Jack W; Belyantseva, Inna A et al. (2017) Gene Therapy Restores Balance and Auditory Functions in a Mouse Model of Usher Syndrome. Mol Ther 25:780-791
Bird, Jonathan E; Barzik, Melanie; Drummond, Meghan C et al. (2017) Harnessing molecular motors for nanoscale pulldown in live cells. Mol Biol Cell 28:463-475
Breglio, Andrew M; Rusheen, Aaron E; Shide, Eric D et al. (2017) Cisplatin is retained in the cochlea indefinitely following chemotherapy. Nat Commun 8:1654
Tran, Linda; Allen, Clint T; Xiao, Roy et al. (2017) Cisplatin Alters Antitumor Immunity and Synergizes with PD-1/PD-L1 Inhibition in Head and Neck Squamous Cell Carcinoma. Cancer Immunol Res 5:1141-1151
Nishio, Ayako; Ito, Taku; Cheng, Hui et al. (2016) Slc26a4 expression prevents fluctuation of hearing in a mouse model of large vestibular aqueduct syndrome. Neuroscience 329:74-82
Chien, Wade W; McDougald, Devin S; Roy, Soumen et al. (2015) Cochlear gene transfer mediated by adeno-associated virus: Comparison of two surgical approaches. Laryngoscope :
Morozko, Eva L; Nishio, Ayako; Ingham, Neil J et al. (2015) ILDR1 null mice, a model of human deafness DFNB42, show structural aberrations of tricellular tight junctions and degeneration of auditory hair cells. Hum Mol Genet 24:609-24
Chien, Wade W; Isgrig, Kevin; Roy, Soumen et al. (2015) Gene therapy restores hair cell stereocilia morphology in inner ears of deaf whirler mice. Mol Ther :

Showing the most recent 10 out of 11 publications