Evidence map›Paper›PMID 21423534›Full record

ArticleFrontiers in synaptic neuroscience2010

Summing Across Different Active Zones can Explain the Quasi-Linear Ca-Dependencies of Exocytosis by Receptor Cells.

Peter Heil, Heinrich Neubauer

Abstract read
In one paragraph

Article in Frontiers in synaptic neuroscience, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
–field-weighted citation impact
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

19 citing papers in PubMed.

  1. CaProceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  2. Review
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  6. Phase Locking of Auditory Nerve Fibers: The Role of Lowpass Filtering by Hair Cells.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2020
    Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
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  13. Towards a unifying basis of auditory thresholds: binaural summation.Journal of the Association for Research in Otolaryngology : JARO · 2014
    Article
  14. Article
  15. Concurrent maturation of inner hair cell synaptic Ca2+ influx and auditory nerve spontaneous activity around hearing onset in mice.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2013
    Article
  16. Why longer song elements are easier to detect: threshold level-duration functions in the Great Tit and comparison with human data.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2013
    Article
  17. Exocytosis in the frog amphibian papilla.Journal of the Association for Research in Otolaryngology : JARO · 2012
    Article
  18. An improved model for the rate-level functions of auditory-nerve fibers.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2011
    Article
  19. 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

2 authors.

Peter HeilAuditory Learning and Speech, Leibniz Institute for Neurobiology Magdeburg, Germany.
Heinrich Neubauer

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Several recent studies of mature auditory and vestibular hair cells (HCs), and of visual and olfactory receptor cells, have observed nearly linear dependencies of the rate of neurotransmitter release events, or related measures, on the magnitude of Ca(2+)-entry into the cell. These relationships contrast with the highly supralinear, third to fourth power, Ca(2+)-dependencies observed in most preparations, from neuromuscular junctions to central synapses, and also in HCs from immature and various mutant animals. They also contrast with the intrinsic, biochemical, Ca(2+)-cooperativity of the ubiquitous Ca(2+)-sensors involved in fast exocytosis (synaptotagmins I and II). Here, we propose that the quasi-linear dependencies result from measuring the sum of several supralinear, but saturating, dependencies with different sensitivities at individual active zones of the same cell. We show that published experimental data can be accurately accounted for by this summation model, without the need to assume altered Ca(2+)-cooperativity or nanodomain control of release. We provide support for the proposal that the best power is 3, and we discuss the large body of evidence for our summation model. Overall, our idea provides a parsimonious and attractive reconciliation of the seemingly discrepant experimental findings in different preparations.

Indexed as

Ca2+-dependenceexocytosishair cellribbon synapsetransmitter release

Identifiers

PMID21423534
PMCPMC3059696

What OpenQuestion holds

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Registered trials

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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.