Evidence map›Paper›PMID 17093118›Full record

ArticleJournal of neurophysiology2007

Selective removal of lateral olivocochlear efferents increases vulnerability to acute acoustic injury.

Keith N Darrow, Stéphane F Maison, M Charles Liberman

Abstract read
In one paragraph

Article in Journal of neurophysiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers.

0numbers the graph read from it
0cells of the map it votes in
68citing papers in PubMed
1.9field-weighted citation impact, top 14% 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

68 citing papers in PubMed, 132 citations in OpenAlex.

  1. Article
  2. Electrocochleographic Changes Predict an Early Sign of Cochlear Degeneration.World journal of otorhinolaryngology - head and neck surgery · 2026
    Article
  3. Review
  4. Article
  5. Lateral olivocochlear neurons modulate cochlear responses to noise exposure.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  6. Article
  7. A Developmental Switch in Cholinergic Mechanisms of Modulation in the Medial Nucleus of the Trapezoid Body.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Article
  8. Article
  9. Cholinergic modulation in the vertebrate auditory pathway.Frontiers in cellular neuroscience · 2024
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article

8 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Keith N DarrowEaton-Peabody Laboratory, Massachusetts Eye and Ear Infirmary, 243 Charles Street, Boston, MA 02114, USA.
Stéphane F Maison
M Charles Liberman
Massachusetts Eye and Ear Infirmary · US

Funding

TRAINING FOR SPEECH AND HEARING SCIENCEST32DC000038 · NIDCD · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI Gwenaelle S Geleoc · 1992 to 2026
$21.8M
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
Imaging Core PlanP30DC005209 · NIDCD · MASSACHUSETTS EYE AND EAR INFIRMARY · PI LIBERMAN, M. CHARLES · 2002 to 2016
$12.0M
NIDCD NIH HHS P30 DC005209NIDCD NIH HHS P30 DC 05209NIDCD NIH HHS R01 DC000188NIDCD NIH HHS R01 DC 00188NIDCD NIH HHS T32 DC000038NIDCD NIH HHS T32 DC 0038
6 · The paper itself

Abstract

Cochlear sensory cells and neurons receive efferent feedback from the olivocochlear (OC) system. The myelinated medial component of the OC system and its effects on outer hair cells (OHCs) have been implicated in protection from acoustic injury. The unmyelinated lateral (L)OC fibers target ipsilateral cochlear nerve dendrites and pharmacological studies suggest the LOC's dopaminergic component may protect these dendrites from excitotoxic effects of acoustic overexposure. Here, we explore LOC function in vivo by selective stereotaxic destruction of LOC cell bodies in mouse. Lesion success in removing the LOC, and sparing the medial (M)OC, was assessed by histological analysis of brain stem sections and cochlear whole mounts. Auditory brain stem responses (ABRs), a neural-based metric, and distortion product otoacoustic emissions (DPOAEs), an OHC-based metric, were measured in control and surgical mice. In cases where the LOC was at least partially destroyed, there were increases in suprathreshold neural responses that were frequency- and level-independent and not attributable to OHC-based effects. These interaural response asymmetries were not found in controls or in cases where the lesion missed the LOC. In LOC-lesion cases, after exposure to a traumatic stimulus, temporary threshold shifts were greater in the ipsilateral ear, but only when measured in the neural response; OHC-based measurements were always bilaterally symmetric, suggesting OHC vulnerability was unaffected. Interaural asymmetries in threshold shift were not found in either unlesioned controls or in cases that missed the LOC. These findings suggest that the LOC modulates cochlear nerve excitability and protects the cochlea from neural damage in acute acoustic injury.

Indexed as

AnimalsBrain StemCholinesterase InhibitorsCochleaDendritesEfferent PathwaysFemaleHearing Loss, Noise-InducedMaleMiceMice, Inbred CBANeuronsOlivary NucleusStereotaxic TechniquesCholinesterase Inhibitors

Identifiers

PMID17093118
PMCPMC1805782
OpenAlexW2159093889

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.