Evidence map›Paper›PMID 21324005›Full record

ArticleThe European journal of neuroscience2011

Zinc enhances long-term potentiation through P2X receptor modulation in the hippocampal CA1 region.

Ramón A Lorca, Carlos Rozas, Sebastian Loyola, Sandra Moreira-Ramos, Marc L Zeise, Alfredo Kirkwood, J Pablo Huidobro-Toro, Bernardo Morales

Open access · greenAbstract read
In one paragraph

Article in The European journal of neuroscience, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
4.9field-weighted citation impact, top 5% 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

26 citing papers in PubMed, 46 citations in OpenAlex.

  1. Article
  2. Article
  3. The Role of Zinc and NMDA Receptors in Autism Spectrum Disorders.Pharmaceuticals (Basel, Switzerland) · 2022
    Review
  4. Review
  5. Article
  6. Review
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  10. Article
  11. Shank3 Is Part of a Zinc-Sensitive Signaling System That Regulates Excitatory Synaptic Strength.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2016
    Article
  12. Review
  13. Article
  14. Review
  15. Article
  16. Sociocommunicative and sensorimotor impairments in male P2X4-deficient mice.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2013
    Article
  17. Article
  18. Article
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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

8 authors at 3 institutions in 2 countries.

Ramón A Lorca *Laboratorio de Neurociencias, Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago 9170022, Chile.
Carlos Rozas *Laboratorio de Neurociencias, Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago 9170022, Chile.
Sebastian LoyolaLaboratorio de Neurociencias, Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago 9170022, Chile.
Sandra Moreira-RamosLaboratorio de Neurociencias, Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago 9170022, Chile.
Marc L ZeiseEscuela de Psicología, Universidad de Santiago de Chile, Santiago, Chile.
Alfredo KirkwoodMind/Brain Institute and Department of Neurosciences, Johns Hopkins University, Baltimore, MD, USA.
J Pablo Huidobro-ToroLaboratorio de Nucleótidos, Centro de Regulación Celular y Patología, J.V. Luco, Instituto MIFAB, Departamento de Fisiología, Facultad de Ciencias Biológicas, P. Universidad Católica de Chile, Santiago, Chile.
Bernardo MoralesLaboratorio de Neurociencias, Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago 9170022, Chile.
Universidad de Santiago de Chile · CLPontificia Universidad Católica de Chile · CLJohns Hopkins University · US

Funding

Synaptic Function & Plasticity in CA3 Circuits in the Aging HippocampusR01AG034606 · NIA · JOHNS HOPKINS UNIVERSITY · PI KIRKWOOD, ALFREDO · 2009 to 2013
$1.9M
NIA NIH HHS R01 AG034606
6 · The paper itself

Abstract

Zn²(+) is an essential ion that is stored in and co-released from glutamatergic synapses and it modulates neurotransmitter receptors involved in long-term potentiation (LTP). However, the mechanism(s) underlying Zn²(+) -induced modulation of LTP remain(s) unclear. As the purinergic P2X receptors are relevant targets for Zn²(+) action, we have studied their role in LTP modulation by Zn²(+) in the CA1 region of rat hippocampal slices. Induction of LTP in the presence of Zn²(+) revealed a biphasic effect - 5-50 μm enhanced LTP induction, whereas 100-300 μm Zn²(+) inhibited LTP. The involvement of a purinergic mechanism is supported by the fact that application of the P2X receptor antagonists 2',3'-O-(2,4,6-trinitrophenyl) ATP (TNP-ATP) and periodate-oxidized ATP fully abolished the facilitatory effect of Zn²(+) . Notably, application of the P2X₇ receptor-specific antagonist Brilliant Blue G did not modify the Zn²(+) -dependent facilitation of LTP. Exogenous ATP also produced a biphasic effect - 0.1-1 μm ATP facilitated LTP, whereas 5-10 μm inhibited LTP. The facilitatory effect of ATP was abolished by the application of TNP-ATP and was modified in the presence of 5 μm Zn²(+) , suggesting that P2X receptors are involved in LTP induction and that Zn²(+) leads to an increase in the affinity of P2X receptors for ATP. The latter confirms our previous results from heterologous expression systems. Collectively, our results indicate that Zn²(+) at low concentrations enhances LTP by modulating P2X receptors. Although it is not yet clear which purinergic receptor subtype(s) is responsible for these effects on LTP, the data presented here suggest that P2X₄ but not P2X₇ is involved.

Indexed as

Adenosine TriphosphateAnimalsCA1 Region, HippocampalElectrophysiologyLong-Term PotentiationMalePurinergic P2X Receptor AgonistsPurinergic P2X Receptor AntagonistsRatsRats, Sprague-DawleyReceptors, GABA-AReceptors, N-Methyl-D-AspartateReceptors, Purinergic P2XReceptors, Purinergic P2X4Receptors, Purinergic P2X7ZincAdenosine TriphosphatePurinergic P2X Receptor AgonistsPurinergic P2X Receptor AntagonistsReceptors, GABA-AReceptors, N-Methyl-D-AspartateReceptors, Purinergic P2XReceptors, Purinergic P2X4Receptors, Purinergic P2X7Zinc

Identifiers

PMID21324005
PMCPMC3779873
OpenAlexW1926752139

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.