Evidence map›Paper›PMID 30593923›Full record

ArticleNeuroscience2019

Synaptic Reorganization Response in the Cochlear Nucleus Following Intense Noise Exposure.

S Manohar, P V Ramchander, R Salvi, G M Seigel

Abstract read
In one paragraph

Article in Neuroscience, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
0.8field-weighted citation impact, top 31% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 17 citations in OpenAlex.

  1. Identification and quantification of GABAIBRO neuroscience reports · 2025
    Article
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  3. Article
  4. NMDA Receptors: Next therapeutic targets for Tinnitus?Biochemistry and biophysics reports · 2025
    Review
  5. Article
  6. Article
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  8. Article
  9. Article
  10. Review
  11. Article
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  13. Article
  14. The use of nonhuman primates in studies of noise injury and treatment.The Journal of the Acoustical Society of America · 2019
    Review
  15. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

S ManoharUniversity at Buffalo, Center for Hearing and Deafness, 3435 Main Street, Cary 137, Buffalo, NY 14214, United States.
P V RamchanderUniversity at Buffalo, Center for Hearing and Deafness, 3435 Main Street, Cary 137, Buffalo, NY 14214, United States.
R SalviUniversity at Buffalo, Center for Hearing and Deafness, 3435 Main Street, Cary 137, Buffalo, NY 14214, United States. Electronic address: salvi@buffalo.edu.
G M SeigelUniversity at Buffalo, Center for Hearing and Deafness, 3435 Main Street, Cary 137, Buffalo, NY 14214, United States.
University at Buffalo, State University of New York · US

Funding

Blast Wave Effects: Hearing, Memory, TherapyR01DC011808 · NIDCD · STATE UNIVERSITY OF NEW YORK AT BUFFALO · PI SALVI, RICHARD J · 2012 to 2016
$2.0M
NIDCD NIH HHS R01 DC011808
6 · The paper itself

Abstract

The cochlear nucleus, located in the brainstem, receives its afferent auditory input exclusively from the auditory nerve fibers of the ipsilateral cochlea. Noise-induced neurodegenerative changes occurring in the auditory nerve stimulate a cascade of neuroplastic changes in the cochlear nucleus resulting in major changes in synaptic structure and function. To identify some of the key molecular mechanisms mediating this synaptic reorganization, we unilaterally exposed rats to a high-intensity noise that caused significant hearing loss and then measured the resulting changes in a synaptic plasticity gene array targeting neurogenesis and synaptic reorganization. We compared the gene expression patterns in the dorsal cochlear nucleus (DCN) and ventral cochlear nucleus (VCN) on the noise-exposed side versus the unexposed side using a PCR gene array at 2 d (early) and 28 d (late) post-exposure. We discovered a number of differentially expressed genes, particularly those related to synaptogenesis and regeneration. Significant gene expression changes occurred more frequently in the VCN than the DCN and more changes were seen at 28  d versus 2 d post-exposure. We confirmed the PCR findings by in situ hybridization for Brain-derived neurotrophic factor (Bdnf), Homer-1, as well as the glutamate NMDA receptor Grin1, all involved in neurogenesis and plasticity. These results suggest that Bdnf, Homer-1 and Grin1 play important roles in synaptic remodeling and homeostasis in the cochlear nucleus following severe noise-induced afferent degeneration.

Indexed as

Acoustic StimulationAnimalsBrain-Derived Neurotrophic FactorCochlear NucleusDisease Models, AnimalEvoked Potentials, Auditory, Brain StemGene Expression RegulationHearing Loss, Noise-InducedHomer Scaffolding ProteinsNeuronal PlasticityRats, Sprague-DawleyReceptors, N-Methyl-D-AspartateRNA, MessengerSynapsesTime FactorsBdnf protein, ratBrain-Derived Neurotrophic FactorHomer1 protein, ratHomer Scaffolding ProteinsReceptors, N-Methyl-D-AspartateRNA, Messengerdorsal cochlear nucleusgene expressionnoise-induced hearing losssynaptic plasticityventral cochlear nucleus

Identifiers

PMID30593923
PMCPMC6595490
OpenAlexW2906369134

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.