Evidence map›Paper›PMID 12764103›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2003

Frequency modulation of synchronized Ca2+ spikes in cultured hippocampal networks through G-protein-coupled receptors.

Zhijun Liu, Lin Geng, Ruxin Li, Xiangping He, James Q Zheng, Zuoping Xie

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

25 citing papers in PubMed, 64 citations in OpenAlex.

  1. Green fluorescent cAMP indicator of high speed and specificity suitable for neuronal live-cell imaging.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  2. Impaired Functional Connectivity Underlies Fragile X Syndrome.International journal of molecular sciences · 2022
    Article
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  15. Growth factors in ischemic stroke.Journal of cellular and molecular medicine · 2011
    Review
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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

6 authors at 1 institution in 2 countries.

Zhijun LiuDepartment of Biological Science and Biotechnology, State Key Laboratory of Biomembrane and Membrane Biotechnology, Tsinghua University, Beijing, China 100084.
Lin Geng
Ruxin Li
Xiangping He
James Q Zheng
Zuoping Xie
Tsinghua University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Synchronized spontaneous Ca2+ spikes in networked neurons represent periodic burst firing of action potentials, which are believed to play a major role in the development and plasticity of neuronal circuitry. How these network activities are shaped and modulated by extrinsic factors during development, however, remains to be studied. Here we report that synchronized Ca2+ spikes among cultured hippocampal neurons can be modulated by two small factors that act on G-protein-coupled receptors (GPCRs): the neuropeptide PACAP (pituitary adenylate cyclase-activating polypeptide) and the chemokine SDF-1 (stromal cell-derived factor-1). PACAP effectively increases the frequency of the synchronized Ca2+ spikes when applied acutely; the PACAP potentiation of Ca2+ spikes requires the activation of the PACAP-specific PAC1 GPCRs and is mediated by the activation of cAMP signaling pathway. SDF-1, on the other hand, significantly reduces the frequency of these Ca2+ spikes through the activation of its specific GPCR CXCR4; the inhibitory action of SDF-1 is mediated by the inhibition of cAMP pathway through the Gi component of GPCRs. Taken together, these results demonstrate that synchronized neuronal network activity can be effectively modulated by physiologically and developmentally relevant small factors that act on GPCRs to target the cAMP pathway. Such modulation of neuronal activity through GPCRs may represent a significant mechanism that underlies the neuronal plasticity during neural development and functioning.

Indexed as

Action PotentialsAnimalsCalciumCalcium SignalingCells, CulturedChemokine CXCL12Chemokines, CXCCyclic AMPFetusGTP-Binding ProteinsHippocampusNerve NetNeuronsNeuropeptidesOrgan SpecificityPatch-Clamp TechniquesAdcyap1 protein, ratCalciumChemokine CXCL12Chemokines, CXCCyclic AMPGTP-Binding ProteinsNeuropeptidesPituitary Adenylate Cyclase-Activating PolypeptideReceptors, Cell Surface

Identifiers

PMID12764103
PMCPMC6741069
OpenAlexW2157813625

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.