Evidence map›Paper›PMID 27794462›Full record

ArticleNeurobiology of learning and memory2017

Long-term depression-associated signaling is required for an in vitro model of NMDA receptor-dependent synapse pruning.

Maile A Henson, Charles J Tucker, Meilan Zhao, Serena M Dudek

Open access · hybridAbstract read
In one paragraph

Article in Neurobiology of learning and memory, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.3field-weighted citation impact, top 21% 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

21 citing papers in PubMed, 34 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Review
  5. Article
  6. Oxysterols in Central and Peripheral Synaptic Communication.Advances in experimental medicine and biology · 2024
    Article
  7. Review
  8. Article
  9. Review
  10. All-or-none disconnection of pyramidal inputs onto parvalbumin-positive interneurons gates ocular dominance plasticity.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  11. Review
  12. Article
  13. Article
  14. Caspases in the Developing Central Nervous System: Apoptosis and Beyond.Frontiers in cell and developmental biology · 2021
    Review
  15. Article
  16. Review
  17. Article
  18. Article
  19. Dendritic Spine Elimination: Molecular Mechanisms and Implications.The Neuroscientist : a review journal bringing neurobiology, neurology and psychiatry · 2019
    Review
  20. Synaptic Elimination in Neurological Disorders.Current neuropharmacology · 2019
    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

4 authors at 2 institutions in 1 country.

Maile A HensonNeurobiology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, 111 T.W. Alexander Drive, Mail Drop F2-04, Research Triangle Park, NC 27709, USA. Electronic address: maile.henson@duke.edu.
Charles J TuckerSignal Transduction Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, 111 T.W. Alexander Drive, Mail Drop F2-02, Research Triangle Park, NC 27709, USA.
Meilan ZhaoNeurobiology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, 111 T.W. Alexander Drive, Mail Drop F2-04, Research Triangle Park, NC 27709, USA.
Serena M DudekNeurobiology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, 111 T.W. Alexander Drive, Mail Drop F2-04, Research Triangle Park, NC 27709, USA. Electronic address: dudek@niehs.nih.gov.
National Institute of Environmental Health Sciences · USNational Institutes of Health · US

Funding

Mechanisms Of Synaptic Plasticity In The Adult And Developing Nervous SystemZIAES100221 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI DUDEK, SERENA M · 2009 to 2025
$47.4M
Synaptic Plasticity In The Adult And Developing NSZ01ES100221 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI DUDEK, SERENA M · 2002 to 2008
$3.5M
Intramural NIH HHS Z01 ES100221Intramural NIH HHS ZIA ES100221
6 · The paper itself

Abstract

Activity-dependent pruning of synaptic contacts plays a critical role in shaping neuronal circuitry in response to the environment during postnatal brain development. Although there is compelling evidence that shrinkage of dendritic spines coincides with synaptic long-term depression (LTD), and that LTD is accompanied by synapse loss, whether NMDA receptor (NMDAR)-dependent LTD is a required step in the progression toward synapse pruning is still unknown. Using repeated applications of NMDA to induce LTD in dissociated rat neuronal cultures, we found that synapse density, as measured by colocalization of fluorescent markers for pre- and postsynaptic structures, was decreased irrespective of the presynaptic marker used, post-treatment recovery time, and the dendritic location of synapses. Consistent with previous studies, we found that synapse loss could occur without apparent net spine loss or cell death. Furthermore, synapse loss was unlikely to require direct contact with microglia, as the number of these cells was minimal in our culture preparations. Supporting a model by which NMDAR-LTD is required for synapse loss, the effect of NMDA on fluorescence colocalization was prevented by phosphatase and caspase inhibitors. In addition, gene transcription and protein translation also appeared to be required for loss of putative synapses. These data support the idea that NMDAR-dependent LTD is a required step in synapse pruning and contribute to our understanding of the basic mechanisms of this developmental process.

Indexed as

AnimalsCells, CulturedCerebral CortexDendritic SpinesHippocampusLong-Term Synaptic DepressionNeuronal PlasticityNeuronsN-MethylaspartatePatch-Clamp TechniquesRatsRats, Sprague-DawleyReceptors, N-Methyl-D-AspartateSynapsesN-MethylaspartateReceptors, N-Methyl-D-AspartateCaspaseConfocal microscopyDendritic spineDevelopmentNeuron culturePhosphataseProtein synthesisSynapseTranscription

Identifiers

PMID27794462
PMCPMC5336406
OpenAlexW2541191013

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.