Evidence map›Paper›PMID 34788179›Full record

ArticleJournal of neurophysiology2021

Auditory-nerve responses in mice with noise-induced cochlear synaptopathy.

Kirupa Suthakar, M Charles Liberman

Abstract read
In one paragraph

Article in Journal of neurophysiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed
–field-weighted citation impact
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

50 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Neural Hearing Loss: Mechanisms, Diagnosis and Treatment Horizons.Journal of the Association for Research in Otolaryngology : JARO · 2026
    Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Strengthening Medial Olivocochlear Feedback Reduces the Developmental Impact of Early Noise Exposure.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Review
  18. Phenotypic changes of auditory nerve fibers after excitotoxicity.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  19. Developing a Calibration Method to Minimize Variability in Auditory Evoked Potentials.Journal of the Association for Research in Otolaryngology : JARO · 2025
    Article
  20. Convergence of Type 1 Spiral Ganglion Neuron Subtypes onto Principal Neurons of the Anteroventral Cochlear Nucleus.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
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

2 authors.

Kirupa SuthakarEaton-Peabody Laboratories, Massachusetts Eye and Ear, Boston, Massachusetts.ORCID 0000-0002-6815-4319
M Charles LibermanEaton-Peabody Laboratories, Massachusetts Eye and Ear, Boston, Massachusetts.

Funding

SINGLE-NEURON MARKING IN THE STUDY OF ABNORMAL COCHLEASR01DC000188 · NIDCD · MASSACHUSETTS EYE AND EAR INFIRMARY · PI Gabriel Corfas, M. Charles Liberman · 1989 to 2026
$15.1M
NIDCD NIH HHS R01 DC000188
6 · The paper itself

Abstract

Cochlear synaptopathy is the noise-induced or age-related loss of ribbon synapses between inner hair cells (IHCs) and auditory-nerve fibers (ANFs), first reported in CBA/CaJ mice. Recordings from single ANFs in anesthetized, noise-exposed guinea pigs suggested that neurons with low spontaneous rates (SRs) and high thresholds are more vulnerable than low-threshold, high-SR fibers. However, there is extensive postexposure regeneration of ANFs in guinea pigs but not in mice. Here, we exposed CBA/CaJ mice to octave-band noise and recorded sound-evoked and spontaneous activity from single ANFs at least 2 wk later. Confocal analysis of cochleae immunostained for pre- and postsynaptic markers confirmed the expected loss of 40%-50% of ANF synapses in the basal half of the cochlea; however, our data were not consistent with a selective loss of low-SR fibers. Rather they suggested a loss of both SR groups in synaptopathic regions. Single-fiber thresholds and frequency tuning recovered to pre-exposure levels; however, response to tone bursts showed increased peak and steady-state firing rates, as well as decreased jitter in first-spike latencies. This apparent gain-of-function increased the robustness of tone-burst responses in the presence of continuous masking noise. This study suggests that the nature of noise-induced synaptic damage varies between different species and that, in mouse, the noise-induced hyperexcitability seen in central auditory circuits is also observed at the level of the auditory nerve.

Indexed as

AnimalsCochlear DiseasesCochlear NerveDisease Models, AnimalHearing Loss, Noise-InducedMaleMiceMice, Inbred CBASpiral GanglionSynapsesauditory nervecochlear synaptopathynoise exposureribbon synapsespiral ganglion neuron

Identifiers

PMID34788179
PMCPMC8715054

What OpenQuestion holds

Textmetadata
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.