Evidence map›Paper›PMID 12624181›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2003

Altered properties of quantal neurotransmitter release at endplates of mice lacking P/Q-type Ca2+ channels.

Francisco J Urbano, Erika S Piedras-Rentería, Kisun Jun, Hee-Sup Shin, Osvaldo D Uchitel, Richard W Tsien

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed
3.9field-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

55 citing papers in PubMed, 127 citations in OpenAlex.

  1. Article
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  8. Article
  9. Article
  10. Review
  11. Article
  12. The role of laminins in the organization and function of neuromuscular junctions.Matrix biology : journal of the International Society for Matrix Biology · 2017
    Review
  13. Article
  14. Article
  15. Defects in Neuromuscular Transmission May Underlie Motor Dysfunction in Spinal and Bulbar Muscular Atrophy.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2016
    Article
  16. Article
  17. The Role of Calcium Channels in Epilepsy.Cold Spring Harbor perspectives in medicine · 2016
    Review
  18. Synaptic Vesicle Proteins and Active Zone Plasticity.Frontiers in synaptic neuroscience · 2016
    Article
  19. Review
  20. Review
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

6 authors at 1 institution in 1 country.

Francisco J UrbanoDepartment of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, CA 94305, USA.
Erika S Piedras-Rentería
Kisun Jun
Hee-Sup Shin
Osvaldo D Uchitel
Richard W Tsien
Fundación Ciencias Exactas y Naturales · AR

Funding

NEURONAL FUNCTIONS OF MULTIPLE TYPES OF CALCIUM CHANNELSR01NS024067 · NINDS · YALE UNIVERSITY · PI TSIEN, RICHARD W · 1986 to 2014
$5.0M
NINDS NIH HHS NS 24067NINDS NIH HHS R01 NS024067
6 · The paper itself

Abstract

Transmission at the mouse neuromuscular junction normally relies on P/Q-type channels, but became jointly dependent on both N- and R-type Ca(2+) channels when the PQ-type channel alpha(1A) subunit was deleted. R-type channels lay close to Ca(2+) sensors for exocytosis and I(K(Ca)) channel activation, like the P/Q-type channels they replaced. In contrast, N-type channels were less well localized, but abundant enough to influence secretion strongly, particularly when action potentials were prolonged. Our data suggested that active zone structures may select among multiple Ca(2+) channels in the hierarchy P/Q >R >N. The alpha(1A)-/- neuromuscular junction displayed several other differences from wild-type: lowered quantal content but greater ability to withstand reductions in the Ca(2+)/Mg(2+) ratio, and little or no paired-pulse facilitation, the latter findings possibly reflecting compensatory mechanisms at individual release sites. Changes in presynaptic function were also associated with a significant reduction in the size of postsynaptic acetylcholine receptor clusters.

Indexed as

4-AminopyridineAnimalsCalcium Channels, N-TypeCalcium Channels, P-TypeCalcium Channels, Q-TypeCalcium Channels, R-TypeMiceMice, KnockoutModels, NeurologicalMotor EndplateNeuronal PlasticityNeurotransmitter AgentsSynaptic Transmission4-AminopyridineCalcium Channels, N-TypeCalcium Channels, P-TypeCalcium Channels, Q-TypeCalcium Channels, R-TypeNeurotransmitter Agents

Identifiers

PMID12624181
PMCPMC152320
OpenAlexW1998518207

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.