Evidence map›Paper›PMID 23713031›Full record

ArticleThe Journal of physiology2013

Burst activity and ultrafast activation kinetics of CaV1.3 Ca²⁺ channels support presynaptic activity in adult gerbil hair cell ribbon synapses.

Valeria Zampini, Stuart L Johnson, Christoph Franz, Marlies Knipper, Matthew C Holley, Jacopo Magistretti, Sergio Masetto, Walter Marcotti

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
2.8field-weighted citation impact, top 10% 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

32 citing papers in PubMed, 48 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Current Response in CaFrontiers in neuroscience · 2021
    Article
  5. Article
  6. Article
  7. Review
  8. Review
  9. Hair Cell Afferent Synapses: Function and Dysfunction.Cold Spring Harbor perspectives in medicine · 2019
    Review
  10. Article
  11. Article
  12. Review
  13. Variations in CaThe Journal of neuroscience : the official journal of the Society for Neuroscience · 2018
    Article
  14. Quantitative optical nanophysiology of CaNature communications · 2018
    Article
  15. Article
  16. The Coupling between CaThe Journal of neuroscience : the official journal of the Society for Neuroscience · 2017
    Article
  17. RIM-Binding Protein 2 Promotes a Large Number of CaFrontiers in cellular neuroscience · 2017
    Article
  18. Article
  19. Absence of Neuroplastin-65 Affects Synaptogenesis in Mouse Inner Hair Cells and Causes Profound Hearing Loss.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2016
    Article
  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

8 authors at 3 institutions in 3 countries.

Valeria ZampiniDepartment of Biomedical Science, University of Sheffield, UK.
Stuart L Johnson
Christoph Franz
Marlies Knipper
Matthew C Holley
Jacopo Magistretti
Sergio Masetto
Walter Marcotti
University of Pavia · ITUniversity of Sheffield · GBUniversity of Tübingen · DE

Funding

Wellcome Trust 088719Wellcome Trust 091895
6 · The paper itself

Abstract

Auditory information transfer to afferent neurons relies on precise triggering of neurotransmitter release at the inner hair cell (IHC) ribbon synapses by Ca²⁺ entry through CaV1.3 Ca²⁺ channels. Despite the crucial role of CaV1.3 Ca²⁺ channels in governing synaptic vesicle fusion, their elementary properties in adult mammals remain unknown. Using near-physiological recording conditions we investigated Ca²⁺ channel activity in adult gerbil IHCs. We found that Ca²⁺ channels are partially active at the IHC resting membrane potential (-60 mV). At -20 mV, the large majority (>70%) of Ca²⁺ channel first openings occurred with an estimated delay of about 50 μs in physiological conditions, with a mean open time of 0.5 ms. Similar to other ribbon synapses, Ca²⁺ channels in IHCs showed a low mean open probability (0.21 at -20 mV), but this increased significantly (up to 0.91) when Ca²⁺ channel activity switched to a bursting modality. We propose that IHC Ca²⁺ channels are sufficiently rapid to transmit fast signals of sound onset and support phase-locking. Short-latency Ca²⁺ channel opening coupled to multivesicular release would ensure precise and reliable signal transmission at the IHC ribbon synapse.

Indexed as

AnimalsCalcium Channels, L-TypeGerbillinaeHair Cells, Auditory, InnerIn Vitro TechniquesKineticsSodiumSynapsesCalcium Channels, L-TypeSodium

Identifiers

PMID23713031
PMCPMC3764630
OpenAlexW1504788947

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.