Evidence map›Paper›PMID 20012478›Full record

ReviewPflugers Archiv : European journal of physiology2010

How is the highly positive endocochlear potential formed? The specific architecture of the stria vascularis and the roles of the ion-transport apparatus.

Hiroshi Hibino, Fumiaki Nin, Chizuru Tsuzuki, Yoshihisa Kurachi

Abstract readReview
PubMed Publisher
In one paragraph

Review in Pflugers Archiv : European journal of physiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 97 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
97citing papers in PubMed, 3 pooled it
3.6field-weighted citation impact, top 7% 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

97 citing papers in PubMed, 3 syntheses or guidelines pooled it, 173 citations in OpenAlex.

  1. A Systematic Review of Genes Affecting Endocochlear Potential.Journal of the Association for Research in Otolaryngology : JARO · 2026
    Pooled it
  2. A Systematic Review on the Role of the Stria Vascularis in Menière's Disease Pathogenesis.Journal of the Association for Research in Otolaryngology : JARO · 2025
    Pooled it
  3. Pooled it
  4. Article
  5. Article
  6. The Cochlear Lateral Wall as a Biological Battery: the Mechanisms Underlying KJournal of the Association for Research in Otolaryngology : JARO · 2026
    Review
  7. Review
  8. Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Advances in Microfluidic Cochlea-On-A-Chip.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Review
  16. [Mechanisms of enhanced noise susceptibility in waardenburg syndromeLin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology head and neck surgery · 2025
    Article
  17. Article
  18. Expression of S100β during mouse cochlear development.European journal of histochemistry : EJH · 2025
    Article
  19. Review
  20. Frontiers in cell and developmental biology · 2025
    Article

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

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

4 authors at 1 institution in 1 country.

Hiroshi HibinoDivision of Molecular and Cellular Pharmacology, Department of Pharmacology, Graduate School of Medicine, Osaka University, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan.
Fumiaki Nin
Chizuru Tsuzuki
Yoshihisa Kurachi
Osaka University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cochlear endolymph, an extracellular solution containing 150 mM K(+), exhibits a positive potential of +80 mV. This is called the endocochlear potential (EP) and is essential for audition. The mechanism responsible for formation of the EP has been an enigma for the half century since its first measurement. A key element is the stria vascularis, which displays a characteristic tissue structure and expresses multiple ion-transport apparatus. The stria comprises two epithelial layers: a layer of marginal cells and one composed of intermediate and basal cells. Between the two layers lies an extracellular space termed the intrastrial space (IS), which is thus surrounded by the apical membranes of intermediate cells and the basolateral membranes of marginal cells. The fluid in the IS exhibits a low concentration of K(+) and a positive potential similar to the EP. We have demonstrated that the IS is electrically isolated from the neighboring extracellular fluids, perilymph, and endolymph, which allows the IS to sustain its positive potential. This IS potential is generated by K(+) diffusion across the apical membranes of intermediate cells, where inwardly rectifying Kir4.1 channels are localized. The low K(+) concentration in the IS, which is mandatory for the large K(+)-diffusion potential, is maintained by Na(+),K(+)-ATPases and Na(+),K(+),2Cl(-)-cotransporters expressed at the basolateral membranes of marginal cells. An additional K(+)-diffusion potential formed by KCNQ1/KCNE1-K(+) channels at the apical membranes of marginal cells also contributes to the EP. Therefore, the EP depends on an electrically isolated space and two K(+)-diffusion potentials in the stria vascularis.

Indexed as

Stria VascularisAnimalsCochleaEndolymphIon TransportMembrane PotentialsModels, BiologicalPotassiumPotassium Channel BlockersPotassium ChannelsSodium-Potassium-Exchanging ATPasePotassiumPotassium Channel BlockersPotassium ChannelsSodium-Potassium-Exchanging ATPase

Identifiers

PMID20012478
OpenAlexW2061677892

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.