This is the application for competing renewal of P30 DC005211, """"""""Sensory Mechanisms Research Core"""""""" to provide shared services to a group of NIDCD-funded laboratories. The proposal includes an Administrative Shell, Engineering and Histology Cores. These Research Cores will enable more efficient utilization of common services, as well as access to specialized expertise. The Engineering Core includes a senior programmer and electronics technician, central data servers, auditory phenotyping facility, design of advanced acoustic stimuli and analyses, and a large-format poster printer. The Histology Core offers support and training in tissue preparation for standard light microscopy and immunofluorescence. In addition the Histology Core supports a senior EM microscopist, ultramicrotomy and EM access, as well as trained histologists to guide confocal imaging. The Histology Core will incorporate a confocal microscope into the shared facilities. Together the Engineering and Histology Cores, organized through the Administrative Shell, further strengthen the Center for Hearing and Balance, and now the Center for Sensory Biology which includes NIDCD-funded laboratories studying chemical senses at Johns Hopkins.

Public Health Relevance

The Center for Hearing and Balance, and the Center for Sensory Biology (including chemical senses) at Johns Hopkins together incorporate nearly all the NIDCD-funded research laboratories. Thus this P30 is highly relevant to the scientific goals of studying deafness and other communication disorders. These research Centers are closely allied with clinical investigators in Otolaryngology-Head and Neck Surgery, and Neurology. Core B Engineering Core Director: Eric Young, Ph.D. Co-Director: Bradford May, Ph.D. DESCRIPTION (provided by applicant): A rate-limiting step for many studies of the nervous system is obtaining and effectively using the sophisticated technical hardware and analytical methods needed for innovative research. These constraints apply as well to studies of neural signal processing in the brain as they do to studies of disordered processing in animal models of hearing or balance deficits. Even if hardware/software systems are available for planned experiments, they inevitably require modification for special purposes or integration with other systems in the laboratory. This Engineering Core aims to solve these electronics and computer problems by providing computer programming and electronics expertise to researchers in the Center for Hearing and Balance. The cumulative expertise of our staff makes it possible for our research faculty to focus on experiments and not technology development and allows rapid progress in the use of new technologies. During the past five years this core has developed new behavioral interfaces, new telemetric recording equipment for use in awake and unrestrained animals, and new software for on-line optimization of neuron models. We have adapted multi-single unit recording techniques for our uses and have provided support for routine problems of technology usage.

Agency
National Institute of Health (NIH)
Institute
National Institute on Deafness and Other Communication Disorders (NIDCD)
Type
Center Core Grants (P30)
Project #
5P30DC005211-13
Application #
8716718
Study Section
Special Emphasis Panel (ZDC1)
Program Officer
Platt, Christopher
Project Start
2002-02-01
Project End
2017-08-31
Budget Start
2014-09-01
Budget End
2015-08-31
Support Year
13
Fiscal Year
2014
Total Cost
Indirect Cost
Name
Johns Hopkins University
Department
Otolaryngology
Type
Schools of Medicine
DUNS #
City
Baltimore
State
MD
Country
United States
Zip Code
21218
Lauer, Amanda M; Larkin, Gail; Jones, Aikeen et al. (2018) Behavioral Animal Model of the Emotional Response to Tinnitus and Hearing Loss. J Assoc Res Otolaryngol 19:67-81
Wu, Jingjing Sherry; Vyas, Pankhuri; Glowatzki, Elisabeth et al. (2018) Opposing expression gradients of calcitonin-related polypeptide alpha (Calca/Cgrp?) and tyrosine hydroxylase (Th) in type II afferent neurons of the mouse cochlea. J Comp Neurol 526:425-438
Jones, Aikeen; May, Bradford J (2018) Effects of Acoustic Environment on Tinnitus Behavior in Sound-Exposed Rats. J Assoc Res Otolaryngol 19:133-146
Zachary, Stephen; Nowak, Nathaniel; Vyas, Pankhuri et al. (2018) Voltage-Gated Calcium Influx Modifies Cholinergic Inhibition of Inner Hair Cells in the Immature Rat Cochlea. J Neurosci 38:5677-5687
Moglie, Marcelo J; Fuchs, Paul A; Elgoyhen, Ana Belén et al. (2018) Compartmentalization of antagonistic Ca2+ signals in developing cochlear hair cells. Proc Natl Acad Sci U S A 115:E2095-E2104
Cunningham, Christopher L; Wu, Zizhen; Jafari, Aria et al. (2017) The murine catecholamine methyltransferase mTOMT is essential for mechanotransduction by cochlear hair cells. Elife 6:
Lauer, Amanda M (2017) Minimal Effects of Age and Exposure to a Noisy Environment on Hearing in Alpha9 Nicotinic Receptor Knockout Mice. Front Neurosci 11:304
Johnson, Luke A; Della Santina, Charles C; Wang, Xiaoqin (2017) Representations of Time-Varying Cochlear Implant Stimulation in Auditory Cortex of Awake Marmosets (Callithrix jacchus). J Neurosci 37:7008-7022
Jones, Aikeen; May, Bradford J (2017) Improving the Reliability of Tinnitus Screening in Laboratory Animals. J Assoc Res Otolaryngol 18:183-195
Vyas, Pankhuri; Wu, Jingjing Sherry; Zimmerman, Amanda et al. (2017) Tyrosine Hydroxylase Expression in Type II Cochlear Afferents in Mice. J Assoc Res Otolaryngol 18:139-151

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