Evidence map›Paper›PMID 20821032›Full record

ArticleJournal of the Association for Research in Otolaryngology : JARO2010

The effect of cochlear-implant-mediated electrical stimulation on spiral ganglion cells in congenitally deaf white cats.

Iris Chen, Charles J Limb, David K Ryugo

Open access · bronzeAbstract read
In one paragraph

Article in Journal of the Association for Research in Otolaryngology : JARO, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

16 citing papers in PubMed, 29 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. Chronic Deafness Degrades Temporal Acuity in the Electrically Stimulated Auditory Pathway.Journal of the Association for Research in Otolaryngology : JARO · 2018
    Article
  8. Review
  9. Intracochlear electrical stimulation suppresses apoptotic signaling in rat spiral ganglion neurons after deafening in vivo.Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery · 2013
    Article
  10. Article
  11. Feline deafness.The Veterinary clinics of North America. Small animal practice · 2012
    Review
  12. Article
  13. Review
  14. Review
  15. Review
  16. 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 1 institution in 2 countries.

Iris ChenDepartment of Otolaryngology-HNS, Center for Hearing and Balance, Johns Hopkins University School of Medicine, Traylor 510, 720 Rutland Ave, Baltimore, MD 21205, USA.
Charles J Limb
David K Ryugo
Johns Hopkins University · US

Funding

The Histology CoreP30DC005211 · NIDCD · JOHNS HOPKINS UNIVERSITY · PI YOUNG, ERIC DANIEL · 2002 to 2016
$9.1M
SINGLE-CELL MARKING STUDIES OF THE AUDITORY NERVER01DC000232 · NIDCD · JOHNS HOPKINS UNIVERSITY · PI RYUGO, DAVID K. · 1989 to 2010
$6.4M
NIDCD NIH HHS DC000232NIDCD NIH HHS DC005211NIDCD NIH HHS P30 DC005211NIDCD NIH HHS R01 DC000232
6 · The paper itself

Abstract

It has long been observed that loss of auditory receptor cells is associated with the progressive degeneration of spiral ganglion cells. Chronic electrical stimulation via cochlear implantation has been used in an attempt to slow the rate of degeneration in cats neonatally deafened by ototoxic agents but with mixed results. The present study examined this issue using white cats with a history of hereditary deafness as an alternative animal model. Nineteen cats provided new data for this study: four normal-hearing cats, seven congenitally deaf white cats, and eight congenitally deaf white cats with unilateral cochlear implants. Data from additional cats were collected from the literature. Electrical stimulation began at 3 to 4 or 6 to 7 months after birth, and cats received stimulation for approximately 7 h a day, 5 days a week for 12 weeks. Quantitative analysis of spiral ganglion cell counts, cell density, and cell body size showed no marked improvement between cochlear-implanted and congenitally deaf subjects. Average ganglion cell size from cochlear-implanted and congenitally deaf cats was statistically similar and smaller than that of normal-hearing cats. Cell density from cats with cochlear implants tended to decrease within the upper basal and middle cochlear turns in comparison to congenitally deaf cats but remained at congenitally deaf levels within the lower basal and apical cochlear turns. These results provide no evidence that chronic electrical stimulation enhances spiral ganglion cell survival, cell density, or cell size compared to that of unstimulated congenitally deaf cats. Regardless of ganglion neuron status, there is unambiguous restoration of auditory nerve synapses in the cochlear nucleus of these cats implanted at the earlier age.

Indexed as

Cochlear ImplantsElectric StimulationAnimalsCatsCell CountCell SizeCell SurvivalCochlear NerveDeafnessModels, AnimalOrgan of CortiSpiral GanglionVestibule, Labyrinth

Identifiers

PMID20821032
PMCPMC2975880
OpenAlexW2077411514

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.