Evidence map›Paper›PMID 12944522›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2003

Secretory vesicles membrane area is regulated in tandem with quantal size in chromaffin cells.

Liang-Wei Gong, Ismail Hafez, Guillermo Alvarez de Toledo, Manfred Lindau

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed
2.5field-weighted citation impact, top 11% 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

63 citing papers in PubMed, 117 citations in OpenAlex.

  1. Review
  2. Membrane Merger Dynamics in Exocytosis and Endocytosis.Advances in experimental medicine and biology · 2026
    Review
  3. Article
  4. All SNAP25 molecules in the vesicle-plasma membrane contact zone change conformation during vesicle priming.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  5. Review
  6. Patch Amperometry and Intracellular Patch Electrochemistry.Methods in molecular biology (Clifton, N.J.) · 2023
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. An Alternative Exon of CAPS2 Influences Catecholamine Loading into LDCVs of Chromaffin Cells.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2019
    Article
  14. Individual synaptic vesicles mediate stimulated exocytosis from cochlear inner hair cells.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  15. Review
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article

3 more citing papers are in PubMed but not listed here.

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 2 institutions in 2 countries.

Liang-Wei GongSchool of Applied and Engineering Physics, Cornell University, Ithaca, New York 14850, USA.
Ismail Hafez
Guillermo Alvarez de Toledo
Manfred Lindau
Universidad de Sevilla · ESCornell University · US

Funding

Mechanisms of Fusion &Transmitter releaseR01NS038200 · NINDS · CORNELL UNIVERSITY ITHACA · PI LINDAU, MANFRED · 2000 to 2007
$2.3M
NINDS NIH HHS R01 NS038200NINDS NIH HHS R01-NS38200
6 · The paper itself

Abstract

The number of transmitter molecules released in a quantal event can be regulated, and recent studies suggest that the modulation of quantal size is associated with corresponding changes in vesicle volume (Colliver et al., 2000; Pothos et al., 2002). If so, this could occur either by distension of the vesicle membrane or by incorporation and removal of vesicle membrane. We performed simultaneous measurements of vesicle membrane area and catecholamine release in individual quantal events from chromaffin cells using cell-attached patch amperometry. Cells were treated with reserpine, a vesicular monoamine transport blocker that decreases quantal size, or l-dopa, a catecholamine precursor that increases quantal size. We show that decrease and increase in quantal size are associated with a respective decrease and increase in vesicle membrane area. These results point to a novel mechanism of vesicle membrane dynamics by which vesicles physically change their membrane area in response to changes in transmitter content such that the intravesicular concentration of transmitter is maintained.

Indexed as

AnimalsCatecholaminesCattleCells, CulturedChromaffin CellsChromaffin GranulesExocytosisIntracellular MembranesLevodopaNeurotransmitter AgentsPatch-Clamp TechniquesReserpineSecretory VesiclesCatecholaminesLevodopaNeurotransmitter AgentsReserpine

Identifiers

PMID12944522
PMCPMC6740609
OpenAlexW1642448552

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.