Evidence map›Paper›PMID 21207127›Full record

ArticleJournal of computational neuroscience2011

Passive and active shaping of unitary responses from associational/commissural and perforant path synapses in hippocampal CA3 pyramidal cells.

Tamara Perez-Rosello, John L Baker, Michele Ferrante, Satish Iyengar, Giorgio A Ascoli, Germán Barrionuevo

Erratum issuedOpen access · greenAbstract read
In one paragraph

Article in Journal of computational neuroscience, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
0.5field-weighted citation impact, top 44% 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, 20 citations in OpenAlex.

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  7. Intracellular ZnThe Journal of neuroscience : the official journal of the Society for Neuroscience · 2019
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4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

6 authors at 3 institutions in 1 country.

Tamara Perez-RoselloDepartment of Neuroscience, University of Pittsburgh, Pittsburgh, PA, USA.
John L Baker
Michele Ferrante
Satish Iyengar
Giorgio A Ascoli
Germán Barrionuevo
University of Pittsburgh · USGeorge Mason University · USInstitute for Advanced Study · US

Funding

Generation and Description of Neuronal Morphology and ConnectivityR01NS039600 · NINDS · GEORGE MASON UNIVERSITY · PI ASCOLI, GIORGIO A · 1999 to 2024
$6.9M
NEUROPHYSIOLOGY OF ASSOCIATIVE LONG-TERM POTENTIATIONR01NS024288 · NINDS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI BARRIONUEVO, GERMAN · 1985 to 2008
$1.9M
CRCNS: Input/Output Relationship in CA3 Pyramidal CellsR01AG025633 · NIA · GEORGE MASON UNIVERSITY · PI ASCOLI, GIORGIO A · 2004 to 2008
$1.5M
NIA NIH HHS R01 AG025633NINDS NIH HHS R01 NS024288NINDS NIH HHS R01 NS039600
6 · The paper itself

Abstract

Although associational/commissural (A/C) and perforant path (PP) inputs to CA3b pyramidal cells play a central role in hippocampal mnemonic functions, the active and passive processes that shape A/C and PP AMPA and NMDA receptor-mediated unitary EPSP/EPSC (AMPA and NMDA uEPSP/uEPSC) have not been fully characterized yet. Here we find no differences in somatic amplitude between A/C and PP for either AMPA or NMDA uEPSPs. However, larger AMPA uEPSCs were evoked from proximal than from distal A/C or PP. Given the space-clamp constraints in CA3 pyramidal cells, these voltage clamp data suggest that the location-independence of A/C and PP AMPA uEPSP amplitudes is achieved in part through the activation of voltage dependent conductances at or near the soma. Moreover, similarity in uEPSC amplitudes for distal A/C and PP points to the additional participation of unclamped active conductances. Indeed, the pharmacological blockade of voltage-dependent conductances eliminates the location-independence of these inputs. In contrast, the location-independence of A/C and PP NMDA uEPSP/uEPSC amplitudes is maintained across all conditions indicating that propagation is not affected by active membrane processes. The location-independence for A/C uEPSP amplitudes may be relevant in the recruitment of CA3 pyramidal cells by other CA3 pyramidal cells. These data also suggest that PP excitation represents a significant input to CA3 pyramidal cells. Implication of the passive data on local synaptic properties is further investigated in the companion paper with a detailed computational model.

Indexed as

AnimalsCA3 Region, HippocampalExcitatory Postsynaptic PotentialsMaleOrgan Culture TechniquesPerforant PathwayPyramidal CellsRatsRats, Sprague-DawleySynapses

Identifiers

PMID21207127
PMCPMC3560390
OpenAlexW1976759518

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.