Evidence map›Paper›PMID 26194339›Full record

ArticleHippocampus2016

Dopamine D1/D5 receptor signaling regulates synaptic cooperation and competition in hippocampal CA1 pyramidal neurons via sustained ERK1/2 activation.

Mahesh Shivarama Shetty, Suma Gopinadhan, Sreedharan Sajikumar

Open access · hybridAbstract read
In one paragraph

Article in Hippocampus, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.3field-weighted citation impact, top 25% 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

17 citing papers in PubMed, 28 citations in OpenAlex.

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  13. Substance P induces plasticity and synaptic tagging/capture in rat hippocampal area CA2.Proceedings of the National Academy of Sciences of the United States of America · 2017
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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

3 authors at 1 institution in 1 country.

Mahesh Shivarama ShettyDepartment of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
Suma GopinadhanDepartment of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
Sreedharan SajikumarDepartment of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
National University of Singapore · SG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Synaptic cooperation and competition are important components of synaptic plasticity that tune synapses for the formation of associative long-term plasticity, a cellular correlate of associative long-term memory. We have recently reported that coincidental activation of weak synapses within the vicinity of potentiated synapses will alter the cooperative state of synapses to a competitive state thus leading to the slow decay of long-term plasticity, but the molecular mechanism underlying this is still unknown. Here, using acute hippocampal slices of rats, we have examined how increasing extracellular dopamine concentrations interact and/or affect electrically induced long-term potentiation (LTP) in the neighboring synapses. We demonstrate that D1/D5-receptor-mediated potentiation at the CA1 Schaffer collateral synapses differentially regulates synaptic co-operation and competition. Further investigating the molecular players involved, we reveal an important role for extracellular signal-regulated kinases-1 and 2 (ERK1/2) as signal integrators and dose-sensors. Interestingly, a sustained activation of ERK1/2 pathway seems to be involved in the differential regulation of synaptic associativity. The concentration-dependent effects of the modulatory transmitter, as demonstrated for dopaminergic signaling in the present study, might offer additional computational power by fine tuning synaptic associativity processes for establishing long-term associative memory in neural networks.

Indexed as

AnimalsCA1 Region, HippocampalDopamine AgonistsDose-Response Relationship, DrugEnzyme ActivationMaleMAP Kinase Signaling SystemNeuronal PlasticityOrgan Culture TechniquesPyramidal CellsRatsRats, WistarReceptors, Dopamine D1Receptors, Dopamine D5SynapsesDopamine AgonistsReceptors, Dopamine D1Receptors, Dopamine D5D1/D5 receptorERK1/2long-term potentiationsynaptic capturesynaptic tagging

Identifiers

PMID26194339
PMCPMC5054950
OpenAlexW1665668081

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.