Evidence map›Paper›PMID 14724228›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2004

The effects of vesicular volume on secretion through the fusion pore in exocytotic release from PC12 cells.

L A Sombers, H J Hanchar, T L Colliver, N Wittenberg, A Cans, S Arbault, C Amatore, A G Ewing

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2004. 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
3.6field-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, 132 citations in OpenAlex.

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  15. Exocytosis, Endocytosis, and Their Coupling in Excitable Cells.Frontiers in molecular neuroscience · 2017
    Review
  16. Article
  17. ATP: The crucial component of secretory vesicles.Proceedings of the National Academy of Sciences of the United States of America · 2016
    Article
  18. Article
  19. Article
  20. 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

8 authors at 4 institutions in 4 countries.

L A SombersDepartment of Chemistry, 152 Davey Laboratory, The Pennsylvania State University, University Park, Pennsylvania 16802-6300, USA.
H J Hanchar
T L Colliver
N Wittenberg
A Cans
S Arbault
C Amatore
A G Ewing
Pennsylvania State University · USPenn State Milton S. Hershey Medical Center · USProcessus d'Activation Sélective par Transfert d'Énergie Uni-électronique ou Radiatif · FRGöteborgs Stads · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Many spikes in amperometric records of exocytosis events initially exhibit a prespike feature, or foot, which represents a steady-state flux of neurotransmitter through a stable fusion pore spanning both the vesicle and plasma membranes and connecting the vesicle lumen to the extracellular fluid. Here, we present the first evidence indicating that vesicular volume before secretion is strongly correlated with the characteristics of amperometric foot events. L-3,4-dihydroxyphenylalanine and reserpine have been used to increase and decrease, respectively, the volume of single pheochromocytoma cell vesicles. Amperometry and transmission electron microscopy have been used to determine that as vesicle size is decreased the frequency with which foot events are observed increases, the amount and duration of neurotransmitter released in the foot portion of the event decreases, and vesicles release a greater percentage of their total contents in the foot portion of the event. This previously unidentified correlation provides new insight into how vesicle volume can modulate the activity of the exocytotic fusion pore.

Indexed as

ExocytosisAction PotentialsAnimalsCell MembraneCell SizeMembrane FusionNeuronsNeurotransmitter AgentsPC12 CellsRatsSecretory VesiclesSynapsesNeurotransmitter Agents

Identifiers

PMID14724228
PMCPMC6729980
OpenAlexW2164593437

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.