Evidence map›Paper›PMID 20884760›Full record

ArticleJournal of neurophysiology2010

Hearing loss alters serotonergic modulation of intrinsic excitability in auditory cortex.

Deepti Rao, Gregory J Basura, Joseph Roche, Scott Daniels, Jaime G Mancilla, Paul B Manis

Open access · greenAbstract read
In one paragraph

Article in Journal of neurophysiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
0.8field-weighted citation impact, top 33% 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

20 citing papers in PubMed, 38 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Developmental and Early-Life Stress-Induced Effects on 5-HTbioRxiv : the preprint server for biology · 2025
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Developmental Regulation of Homeostatic Plasticity in Mouse Primary Visual Cortex.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021
    Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Neural mechanisms supporting robust discrimination of spectrally and temporally degraded speech.Journal of the Association for Research in Otolaryngology : JARO · 2012
    Article
  19. Review
  20. 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

6 authors at 2 institutions in 2 countries.

Deepti RaoDepartment of Cell and Molecular Physiology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.
Gregory J Basura
Joseph Roche
Scott Daniels
Jaime G Mancilla
Paul B Manis
Institute of Molecular and Cell Biology · RUUniversity of North Carolina at Chapel Hill · US

Funding

PHYSIOLOGY OF DORSAL COCHLEAR NUCLEUS MOLECULAR LAYERR01DC000425 · NIDCD · UNIV OF NORTH CAROLINA CHAPEL HILL · PI MANIS, PAUL B · 1989 to 2011
$3.0M
Research Training in OtolaryngologyT32DC005360 · NIDCD · UNIV OF NORTH CAROLINA CHAPEL HILL · PI MANIS, PAUL B · 2003 to 2023
$2.8M
Role of serotonin in auditory cortex regulation following early-onset sensorineurR03DC009893 · NIDCD · UNIV OF NORTH CAROLINA CHAPEL HILL · PI BASURA, GREGORY JOSEPH · 2008 to 2009
$151k
Synaptic Organization and Plasticity in Auditory CortexR21DC005459 · NIDCD · UNIVERSITY OF NORTH CAROLINA CHAPEL HILL · PI MANIS, PAUL B · 2002 to 2003
$139k
NIDCD NIH HHS R01 DC-000425NIDCD NIH HHS R01 DC000425NIDCD NIH HHS R03 DC-009893NIDCD NIH HHS R21 DC005459NIDCD NIH HHS T32 DC-005360NIDCD NIH HHS T32 DC005360
6 · The paper itself

Abstract

Sensorineural hearing loss during early childhood alters auditory cortical evoked potentials in humans and profoundly changes auditory processing in hearing-impaired animals. Multiple mechanisms underlie the early postnatal establishment of cortical circuits, but one important set of developmental mechanisms relies on the neuromodulator serotonin (5-hydroxytryptamine [5-HT]). On the other hand, early sensory activity may also regulate the establishment of adultlike 5-HT receptor expression and function. We examined the role of 5-HT in auditory cortex by first investigating how 5-HT neurotransmission and 5-HT(2) receptors influence the intrinsic excitability of layer II/III pyramidal neurons in brain slices of primary auditory cortex (A1). A brief application of 5-HT (50 μM) transiently and reversibly decreased firing rates, input resistance, and spike rate adaptation in normal postnatal day 12 (P12) to P21 rats. Compared with sham-operated animals, cochlear ablation increased excitability at P12-P21, but all the effects of 5-HT, except for the decrease in adaptation, were eliminated in both sham-operated and cochlear-ablated rats. At P30-P35, cochlear ablation did not increase intrinsic excitability compared with shams, but it did prevent a pronounced decrease in excitability that appeared 10 min after 5-HT application. We also tested whether the effects on excitability were mediated by 5-HT(2) receptors. In the presence of the 5-HT(2)-receptor antagonist, ketanserin, 5-HT significantly decreased excitability compared with 5-HT or ketanserin alone in both sham-operated and cochlear-ablated P12-P21 rats. However, at P30-P35, ketanserin had no effect in sham-operated and only a modest effect cochlear-ablated animals. The 5-HT(2)-specific agonist 5-methoxy-N,N-dimethyltryptamine also had no effect at P12-P21. These results suggest that 5-HT likely regulates pyramidal cell excitability via multiple receptor subtypes with opposing effects. These data also show that early sensorineural hearing loss affects the ability of 5-HT receptor activation to modulate A1 pyramidal cell excitability.

Indexed as

Analysis of VarianceAnimalsAuditory CortexElectrophysiologyHearing LossMembrane PotentialsNeuronsRatsRats, Sprague-DawleyReceptors, Serotonin, 5-HT2SerotoninSynaptic TransmissionReceptors, Serotonin, 5-HT2Serotonin

Identifiers

PMID20884760
PMCPMC2997032
OpenAlexW2035163133

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.