Evidence map›Paper›PMID 21430173›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2011

The relative roles of diffusion and uptake in clearing synaptically released glutamate change during early postnatal development.

Christopher G Thomas, Hua Tian, Jeffrey S Diamond

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
3.3field-weighted citation impact, top 7% 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

38 citing papers in PubMed, 70 citations in OpenAlex.

  1. Article
  2. Article
  3. Optical analysis of glutamate spread in the neuropil.Cerebral cortex (New York, N.Y. : 1991) · 2022
    Article
  4. Article
  5. Article
  6. Tonic Activation of GluN2C/GluN2D-Containing NMDA Receptors by Ambient Glutamate Facilitates Cortical Interneuron Maturation.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2019
    Article
  7. Article
  8. Region- and Activity-Dependent Regulation of Extracellular Glutamate.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2018
    Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Review
  18. Control of cortical neuronal migration by glutamate and GABA.Frontiers in cellular neuroscience · 2015
    Review
  19. Review
  20. Spontaneous Network Activity and Synaptic Development.The Neuroscientist : a review journal bringing neurobiology, neurology and psychiatry · 2014
    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

3 authors at 1 institution in 1 country.

Christopher G ThomasSynaptic Physiology Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland 20892-3701, USA.
Hua Tian
Jeffrey S Diamond
National Institutes of Health · US

Funding

Dynamics Of Excitatory Synaptic Transmission In The HippocampusZIANS002986 · NINDS · NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE · PI DIAMOND, JEFFREY S · 2009 to 2013
$2.1M
Intramural NIH HHS ZIA NS002986
6 · The paper itself

Abstract

Glutamate uptake by transporters expressed in astrocytes combines with synaptic structure to regulate the time that synaptically released glutamate remains in the extracellular space and, consequently, the duration and location of postsynaptic receptor activation. Both factors change greatly in the rodent hippocampus during the second postnatal week when most synapses become established and begin to mature, processes that are influenced by synaptically released glutamate. Transporter expression increases, potentially speeding removal of synaptically released glutamate, whereas extracellular space decreases, thereby slowing dilution. We investigated whether these competing changes influence the glutamate concentration time course and postsynaptic responses in the CA1 region of the mouse hippocampus during this critical period of synaptic development. Our results suggest that the glutamate concentration time course remains relatively consistent over this period, although the primary mechanisms regulating glutamate clearance change. Before the second postnatal week, clearance of synaptically released glutamate depends primarily on diffusion into large extracellular spaces, whereas later in development it relies more on increased uptake capacity. Thus, increased transporter expression during this period accompanies structural changes in the neuropil, preserving a relatively consistent glutamate concentration time course and ensuring that postsynaptic receptor activation remains brief and primarily localized to receptors close to release sites.

Indexed as

AlgorithmsAnimalsAnimals, NewbornAstrocytesBlotting, WesternDiffusionElectrophoresis, Polyacrylamide GelElectrophysiological PhenomenaExcitatory Postsynaptic PotentialsFemaleGlutamic AcidHippocampusImmunohistochemistryLuminescenceMaleMiceGlutamic AcidReceptors, N-Methyl-D-AspartateVesicular Glutamate Transport Proteins

Identifiers

PMID21430173
PMCPMC3071753
OpenAlexW2017356878

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.