Evidence map›Paper›PMID 18667546›Full record

ArticleJournal of neurophysiology2008

Synaptic ribbon enables temporal precision of hair cell afferent synapse by increasing the number of readily releasable vesicles: a modeling study.

John H Wittig, Thomas D Parsons

Open access · greenAbstract read
In one paragraph

Article in Journal of neurophysiology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing 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

40 citing papers in PubMed, 67 citations in OpenAlex.

  1. Article
  2. Otoferlin as a multirole CaFrontiers in cellular neuroscience · 2023
    Review
  3. The Impact of Multivesicular Release on the Transmission of Sensory Information by Ribbon Synapses.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2022
    Article
  4. Review
  5. Article
  6. Quantitative FluorescentFrontiers in cellular neuroscience · 2021
    Article
  7. How to Build a Fast and Highly Sensitive Sound Detector That Remains Robust to Temperature Shifts.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2019
    Article
  8. Article
  9. Article
  10. Article
  11. RIM-Binding Protein 2 Promotes a Large Number of CaFrontiers in cellular neuroscience · 2017
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Specialized postsynaptic morphology enhances neurotransmitter dilution and high-frequency signaling at an auditory synapse.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2014
    Article
  17. Article
  18. Article
  19. Mitochondria toxin-induced acute cochlear cell death indicates cellular activity-correlated energy consumption.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2013
    Article
  20. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

John H WittigDepartment of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, 382 West Street Road, Kennett Square, PA 19348, USA.
Thomas D Parsons
American Public Gardens Association · US

Funding

Training in the Neurobiology of OtorhinolaryngologyT32DC005363 · NIDCD · UNIVERSITY OF PENNSYLVANIA · PI SAUNDERS, JAMES C · 2003 to 2007
$1.5M
Mechanisms of Transmitter Release by Cochlear Hair CellsR01DC003783 · NIDCD · UNIVERSITY OF PENNSYLVANIA · PI PARSONS, THOMAS D · 2004 to 2006
$1.1M
NIDCD NIH HHS R01 DC-003783NIDCD NIH HHS T32 DC-005363
6 · The paper itself

Abstract

Synaptic ribbons are classically associated with mediating indefatigable neurotransmitter release by sensory neurons that encode persistent stimuli. Yet when hair cells lack anchored ribbons, the temporal precision of vesicle fusion and auditory nerve discharges are degraded. A rarified statistical model predicted increasing precision of first-exocytosis latency with the number of readily releasable vesicles. We developed an experimentally constrained biophysical model to test the hypothesis that ribbons enable temporally precise exocytosis by increasing the readily releasable pool size. Simulations of calcium influx, buffered calcium diffusion, and synaptic vesicle exocytosis were stochastic (Monte Carlo) and yielded spatiotemporal distributions of vesicle fusion consistent with experimental measurements of exocytosis magnitude and first-spike latency of nerve fibers. No single vesicle could drive the auditory nerve with requisite precision, indicating a requirement for multiple readily releasable vesicles. However, plasmalemma-docked vesicles alone did not account for the nerve's precision--the synaptic ribbon was required to retain a pool of readily releasable vesicles sufficiently large to statistically ensure first-exocytosis latency was both short and reproducible. The model predicted that at least 16 readily releasable vesicles were necessary to match the nerve's precision and provided insight into interspecies differences in synaptic anatomy and physiology. We confirmed that ribbon-associated vesicles were required in disparate calcium buffer conditions, irrespective of the number of vesicles required to trigger an action potential. We conclude that one of the simplest functions ascribable to the ribbon--the ability to hold docked vesicles at an active zone--accounts for the synapse's temporal precision.

Indexed as

Action PotentialsAlgorithmsAnimalsAnuraCalciumComputer SimulationElectrophysiologyExocytosisHair Cells, AuditoryIon Channel GatingKineticsModels, NeurologicalModels, StatisticalMonte Carlo MethodNeurons, AfferentSynapsesCalcium

Identifiers

PMID18667546
PMCPMC2576205
OpenAlexW2047676223

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.