Evidence map›Paper›PMID 27633787›Full record

ArticleThe Journal of physiology2017

Accumulation of K

Donatella Contini, Steven D Price, Jonathan J Art

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of physiology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed
3.9field-weighted citation impact, top 6% 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

52 citing papers in PubMed, 95 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Review
  6. KbioRxiv : the preprint server for biology · 2025
    Article
  7. Article
  8. The potassium channel subunit KbioRxiv : the preprint server for biology · 2024
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Evidence That Ultrafast Nonquantal Transmission Underlies Synchronized Vestibular Action Potential Generation.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023
    Article
  16. Expression of hyperpolarization-activated current (Journal of neurophysiology · 2023
    Article
  17. Nonquantal transmission at the vestibular hair cell-calyx synapse: KProceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  18. Article
  19. Review
  20. KGlia · 2022
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Donatella ContiniDepartment of Anatomy and Cell Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL, 60612, USA.
Steven D PriceDepartment of Anatomy and Cell Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL, 60612, USA.
Jonathan J ArtDepartment of Anatomy and Cell Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL, 60612, USA.ORCID 0000-0001-7780-3854
University of Illinois Chicago · US

Funding

CELLULAR MECHANISMS OF THE VESTIBULAR SYSTEMR01DC002058 · NIDCD · UNIVERSITY OF ILLINOIS AT CHICAGO · PI GOLDBERG, JAY M, LYSAKOWSKI, ANNA · 1993 to 2014
$5.3M
NIDCD NIH HHS R01 DC002058
6 · The paper itself

Abstract

key pointsIn the synaptic cleft between type I hair cells and calyceal afferents, K ABSTRACT: Fast neurotransmitters act in conjunction with slower modulatory effectors that accumulate in restricted synaptic spaces found at giant synapses such as the calyceal endings in the auditory and vestibular systems. Here, we used dual patch-clamp recordings from turtle vestibular hair cells and their afferent neurons to show that potassium ions accumulating in the synaptic cleft modulated membrane potentials and extended the range of information transfer. High-fidelity synaptic transmission was possible due to large conductances that minimized hair cell and afferent time constants in the presence of significant membrane capacitance. Increased potassium concentration in the cleft maintained the hair cell near potentials that promoted the influx of calcium necessary for synaptic vesicle fusion. The elevated potassium concentration also depolarized the postsynaptic neuron by altering ion permeation through hyperpolarization-activated cyclic nucleotide-gated (HCN) channels. This depolarization enabled the afferent to reliably generate action potentials evoked by single AMPA-dependent EPSPs. Depolarization of the postsynaptic afferent could also elevate potassium in the synaptic cleft, and would depolarize other hair cells enveloped by the same neuritic process increasing the fidelity of neurotransmission at those synapses as well. Collectively, these data demonstrate that neuronal activity gives rise to potassium accumulation, and suggest that potassium ion action on HCN channels can modulate neurotransmission, preserving the fidelity of high-speed synaptic transmission by dynamically shifting the resting potentials of both presynaptic and postsynaptic cells.

Indexed as

AnimalsCyclic Nucleotide-Gated Cation ChannelsExcitatory Postsynaptic PotentialsFemaleHair Cells, VestibularMalePotassiumSynapsesSynaptic TransmissionTurtlesCyclic Nucleotide-Gated Cation ChannelsPotassiumexcitatory synaptic transmissionhair cellhyperpolarization-activated cyclic nucleotide-activated channelspotassium accumulationsynaptic modulationvestibular system

Identifiers

PMID27633787
PMCPMC5285615
OpenAlexW2520046003

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.