Evidence map›Paper›PMID 26541100›Full record

ArticleSynapse (New York, N.Y.)2016

Modeling and measurement of vesicle pools at the cone ribbon synapse: Changes in release probability are solely responsible for voltage-dependent changes in release.

Wallace B Thoreson, Matthew J Van Hook, Caitlyn Parmelee, Carina Curto

Open access · greenAbstract read
In one paragraph

Article in Synapse (New York, N.Y.), 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.3field-weighted citation impact, top 24% 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

15 citing papers in PubMed, 20 citations in OpenAlex.

  1. Review
  2. Article
  3. Transmission at rod and cone ribbon synapses in the retina.Pflugers Archiv : European journal of physiology · 2021
    Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Review
  11. Article
  12. Article
  13. Kinetics of Inhibitory Feedback from Horizontal Cells to Photoreceptors: Implications for an Ephaptic Mechanism.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2016
    Article
  14. Article
  15. Functional Roles of Complexin 3 and Complexin 4 at Mouse Photoreceptor Ribbon Synapses.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2016
    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

4 authors at 3 institutions in 1 country.

Wallace B ThoresonTruhlsen Eye Institute, Department of Ophthalmology and Visual Sciences, University of Nebraska Medical Center, Omaha, Nebraska.
Matthew J Van HookTruhlsen Eye Institute, Department of Ophthalmology and Visual Sciences, University of Nebraska Medical Center, Omaha, Nebraska.
Caitlyn ParmeleeDepartment of Mathematics, University of Nebraska, Lincoln, Nebraska.
Carina CurtoDepartment of Mathematics, University of Nebraska, Lincoln, Nebraska.
University of Nebraska Medical Center · USPennsylvania State University · USUniversity of Nebraska–Lincoln · US

Funding

Regulation of Photoreceptor NeurotransmisssionR01EY010542 · NEI · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI KARATEKIN, ERDEM, THORESON, WALLACE B · 2001 to 2023
$7.7M
Regulation of photoreceptor vesicle resupply and synaptic transfer kineticsF32EY023864 · NEI · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI VAN HOOK, MATTHEW JOHN · 2014 to 2015
$113k
NEI NIH HHS F32 EY023864NEI NIH HHS F32EY023864NEI NIH HHS R01 EY010542NEI NIH HHS R01EY10542
6 · The paper itself

Abstract

Postsynaptic responses are a product of quantal amplitude (Q), size of the releasable vesicle pool (N), and release probability (P). Voltage-dependent changes in presynaptic Ca(2+) entry alter postsynaptic responses primarily by changing P but have also been shown to influence N. With simultaneous whole cell recordings from cone photoreceptors and horizontal cells in tiger salamander retinal slices, we measured N and P at cone ribbon synapses by using a train of depolarizing pulses to stimulate release and deplete the pool. We developed an analytical model that calculates the total pool size contributing to release under different stimulus conditions by taking into account the prior history of release and empirically determined properties of replenishment. The model provided a formula that calculates vesicle pool size from measurements of the initial postsynaptic response and limiting rate of release evoked by a train of pulses, the fraction of release sites available for replenishment, and the time constant for replenishment. Results of the model showed that weak and strong depolarizing stimuli evoked release with differing probabilities but the same size vesicle pool. Enhancing intraterminal Ca(2+) spread by lowering Ca(2+) buffering or applying BayK8644 did not increase PSCs evoked with strong test steps, showing there is a fixed upper limit to pool size. Together, these results suggest that light-evoked changes in cone membrane potential alter synaptic release solely by changing release probability.

Indexed as

3-Pyridinecarboxylic acid, 1,4-dihydro-2,6-dimethyl-5-nitro-4-(2-(trifluoromethyl)phenyl)-, Methyl esterAmbystomaAnimalsCalciumCalcium Channel AgonistsCalcium ChannelsFemaleKineticsMaleMembrane PotentialsModels, NeurologicalPatch-Clamp TechniquesProbabilityRetinaRetinal Cone Photoreceptor CellsRetinal Horizontal Cells3-Pyridinecarboxylic acid, 1,4-dihydro-2,6-dimethyl-5-nitro-4-(2-(trifluoromethyl)phenyl)-, Methyl esterCalciumCalcium Channel AgonistsCalcium Channelscone photoreceptormodelingribbon synapsevesicle pools

Identifiers

PMID26541100
PMCPMC4654656
OpenAlexW2105900846

What OpenQuestion holds

Textmetadata
LicenceTDM
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.