Evidence map›Paper›PMID 15107475›Full record

ArticleThe Journal of physiology2004

Presynaptic kainate receptor facilitation of glutamate release involves protein kinase A in the rat hippocampus.

Antonio Rodríguez-Moreno, Talvinder S Sihra

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

27 citing papers in PubMed, 101 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
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  6. Article
  7. Echinacoside, an active constituent ofThe Korean journal of physiology & pharmacology : official journal of the Korean Physiological Society and the Korean Society of Pharmacology · 2018
    Article
  8. Kainate Receptors: Role in Epilepsy.Frontiers in molecular neuroscience · 2018
    Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. Presynaptic α7 nicotinic acetylcholine receptors enhance hippocampal mossy fiber glutamatergic transmission via PKA activation.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2014
    Article
  14. Article
  15. Review
  16. Article
  17. Review
  18. Insight into glutamate excitotoxicity from synaptic zinc homeostasis.International journal of Alzheimer's disease · 2010
    Article
  19. Article
  20. Article
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

2 authors at 1 institution in 1 country.

Antonio Rodríguez-MorenoDepartment of Pharmacology, University College London, Gower Street, London WC1E 6BT, UK.
Talvinder S Sihra
University College London · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We have explored the mechanisms involved in the facilitation of glutamate release mediated by the activation of kainate receptors in the rat hippocampus using isolated nerve terminal (synaptosome) and slice preparations. In hippocampal nerve terminals, kainate (KA) produced an increase of glutamate release at concentrations of agonist ranging from 10 to 1000 microm. In hippocampal slices, KA at low nanomolar concentrations (20-50 nm) also produced an increase of evoked excitatory postsynaptic currents (eEPSCs) at mossy fibre-CA3 synapses. In both, synaptosomes and slices, the effect of KA was antagonized by CNQX, and persisted after pretreatment with a cocktail of antagonists for other receptors whose activation could potentially have produced facilitation of release. These data indicate that the facilitation of glutamate release observed is mediated by the activation of presynaptic glutamate receptors of the kainate type. Mechanistically, the observed effects of KA appear to be the same in synaptosomal and slice preparations. Thus, the effect of KA on glutamate release and mossy fibre-CA3 synaptic transmission was occluded by the stimulation of adenylyl cyclase by forskolin and suppressed by the inhibition of protein kinase A by H-89 or Rp-Br-cAMP. We conclude that kainate receptors present at presynaptic terminals in the rat hippocampus mediate the facilitation of glutamate release through a mechanism involving the activation of an adenylyl cyclase-second messenger cAMP-protein kinase A signalling cascade.

Indexed as

Adenylyl CyclasesAnimalsCyclic AMPCyclic AMP-Dependent Protein KinasesElectric StimulationElectrophysiologyExcitatory Amino Acid AgonistsGlutamic AcidHippocampusIn Vitro TechniquesKainic AcidKainic Acid ReceptorsMaleMossy Fibers, HippocampalRatsReceptors, AMPAAdenylyl CyclasesCyclic AMPCyclic AMP-Dependent Protein KinasesExcitatory Amino Acid AgonistsGlutamic AcidKainic AcidKainic Acid ReceptorsReceptors, AMPAReceptors, N-Methyl-D-AspartateReceptors, Presynaptic

Identifiers

PMID15107475
PMCPMC1665138
OpenAlexW1507531005

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.