Evidence map›Paper›PMID 19914187›Full record

ArticleNeuron2009

Astrocyte-mediated distributed plasticity at hypothalamic glutamate synapses.

Grant R J Gordon, Karl J Iremonger, Srinivas Kantevari, Graham C R Ellis-Davies, Brian A MacVicar, Jaideep S Bains

Open access · bronzeAbstract read
In one paragraph

Article in Neuron, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 106 papers.

0numbers the graph read from it
0cells of the map it votes in
106citing papers in PubMed
8.1field-weighted citation impact, top 1% 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

106 citing papers in PubMed, 219 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
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  6. Article
  7. Review
  8. Adenosine ABiological psychiatry · 2025
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  9. Review
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  11. Article
  12. Astrocytes Are the Source of TNF Mediating Homeostatic Synaptic Plasticity.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Article
  13. Article
  14. Article
  15. Building transformers from neurons and astrocytes.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  16. Activation of Basal Forebrain Astrocytes Induces Wakefulness without Compensatory Changes in Sleep Drive.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023
    Article
  17. Article
  18. Review
  19. Article
  20. The yin and yang of intracellular delivery of amphipathic optical probes usingChemical communications (Cambridge, England) · 2022
    Article

46 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

6 authors at 3 institutions in 2 countries.

Grant R J GordonHotchkiss Brain Institute, Department of Physiology and Pharmacology, University of Calgary, Calgary, AB, Canada.
Karl J Iremonger
Srinivas Kantevari
Graham C R Ellis-Davies
Brian A MacVicar
Jaideep S Bains
Drexel University · USUniversity of British Columbia · CAUniversity of Calgary · CA

Funding

PHOTOCHEMICAL REGULATION OF CALCIUM IN CELL PHYSIOLOGYR01GM053395 · NIGMS · OREGON HEALTH AND SCIENCE UNIVERSITY · PI ELLIS-DAVIES, GRAHAM · 1995 to 2020
$6.1M
CIHRNIGMS NIH HHS GM53395NIGMS NIH HHS R01 GM053395
6 · The paper itself

Abstract

Afferent activity can induce fast, feed-forward changes in synaptic efficacy that are synapse specific. Using combined electrophysiology, caged molecule photolysis, and Ca(2+) imaging, we describe a plasticity in which the recruitment of astrocytes in response to afferent activity causes a fast and feed-forward, yet distributed increase in the amplitude of quantal synaptic currents at multiple glutamate synapses on magnocellular neurosecretory cells in the hypothalamic paraventricular nucleus. The plasticity is largely multiplicative, consistent with a proportional increase or "scaling" in the strength of all synapses on the neuron. This effect requires a metabotropic glutamate receptor-mediated rise in Ca(2+) in the astrocyte processes surrounding the neuron and the release of the gliotransmitter ATP, which acts on postsynaptic purinergic receptors. These data provide evidence for a form of distributed synaptic plasticity that is feed-forward, expressed quickly, and mediated by the synaptic activation of neighboring astrocytes.

Indexed as

Adenosine TriphosphateAnimalsAstrocytesCalciumCell CommunicationExcitatory Postsynaptic PotentialsGlutamic AcidInositol 1,4,5-Trisphosphate ReceptorsIn Vitro TechniquesMaleNeuronal PlasticityNeuronsNeurosecretory SystemsParaventricular Hypothalamic NucleusRatsRats, Sprague-DawleyAdenosine TriphosphateCalciumGlutamic AcidInositol 1,4,5-Trisphosphate ReceptorsReceptors, Metabotropic GlutamateReceptors, Purinergic

Identifiers

PMID19914187
PMCPMC4107870
OpenAlexW2103244356

What OpenQuestion holds

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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.