Evidence map›Paper›PMID 24780562›Full record

ArticleNeuroscience letters2014

Dynorphin release by the lateral olivocochlear efferents may inhibit auditory nerve activity: a cochlear drug delivery study.

Colleen G Le Prell, Larry F Hughes, Sanford C Bledsoe

Open access · greenAbstract read
In one paragraph

Article in Neuroscience letters, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.6field-weighted citation impact, top 20% 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

13 citing papers in PubMed, 18 citations in OpenAlex.

  1. Article
  2. Review
  3. Dynamic Heterogeneity Shapes Patterns of Spiral Ganglion Activity.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021
    Article
  4. Effects of Calcitonin-Gene-Related-Peptide on Auditory Nerve Activity.Frontiers in cell and developmental biology · 2021
    Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. An analysis of cochlear response harmonics: Contribution of neural excitation.The Journal of the Acoustical Society of America · 2015
    Article
  12. Effect of human auditory efferent feedback on cochlear gain and compression.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2014
    Article
  13. 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

3 authors at 2 institutions in 1 country.

Colleen G Le PrellDepartment of Otolaryngology, University of Michigan, USA. Electronic address: colleeng@ufl.edu.
Larry F HughesDepartment of Surgery, Southern Illinois University School of Medicine, USA.
Sanford C BledsoeDepartment of Otolaryngology, University of Michigan, USA.
University of Michigan–Ann Arbor · USSouthern Illinois University School of Medicine · US

Funding

Scientific Synergy CoreP30DC005188 · NIDCD · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI DOLAN, DAVID FRANCIS · 2002 to 2016
$10.3M
PERCEPTUAL CONSEQUENCES OF COCHLEAR &STIMULUS MANIPULATIONSP01DC000078 · NIDCD · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI RAPHAEL, YEHOASH · 1988 to 2002
$4.1M
Functional role of CGRP as an efferent neurotransmitterR03DC007342 · NIDCD · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI LE PRELL, COLLEEN G · 2005 to 2007
$220k
NIDCD NIH HHS P01-DC00078NIDCD NIH HHS P30 DC005188NIDCD NIH HHS P30-DC05188NIDCD NIH HHS R03 DC007342NIDCD NIH HHS R03-DC007342
6 · The paper itself

Abstract

Dynorphin (dyn) is suggested to excite the auditory nerve (AN) when released by the lateral olivocochlear (LOC) efferents. However, previous studies evaluated either intravenously delivered dyn-like agents, raising the potential for systemic (central) effects, or agent concentrations unlikely to be achieved via endogenous cochlear release. This study tested the hypothesis that biologically relevant increases in dyn levels in the cochlea achieved via diffusion of the drug of (-)pentazocine across the round window membrane enhances AN firing. In general, amplitude of the cochlear whole-nerve action potential (CAP) was depressed following drug application. These results suggest that dyn released by the LOC neurons would likely act as an inhibitory transmitter substance in the LOC system; neurotransmission is one of the LOC system's vast unknowns.

Indexed as

Acoustic StimulationAction PotentialsAnimalsAuditory PathwaysAuditory ThresholdCochleaCochlear NerveDynorphinsEfferent PathwaysEvoked Potentials, AuditoryFemaleGuinea PigsMalePentazocineReceptors, Opioid, kappaSuperior Olivary ComplexDynorphinsPentazocineReceptors, Opioid, kappaAuditory nerveCochlear whole nerve action potentialDynorphinKappa opioid receptorLateral olivocochlear efferent

Identifiers

PMID24780562
PMCPMC4083833
OpenAlexW2044829901

What OpenQuestion holds

Textmetadata
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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.