Evidence map›Paper›PMID 22355337›Full record

ArticlePloS one2012

Selective cholinergic depletion in medial septum leads to impaired long term potentiation and glutamatergic synaptic currents in the hippocampus.

Patrick M Kanju, Kodeeswaran Parameshwaran, Catrina Sims-Robinson, Subramaniam Uthayathas, Eleanor M Josephson, Nagalingam Rajakumar, Muralikrishnan Dhanasekaran, Vishnu Suppiramaniam

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In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

15 citing papers in PubMed, 1 synthesis or guideline pooled it.

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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.

Patrick M KanjuDepartment of Pharmacal Sciences, Auburn University, Auburn, Alabama, United States of America.
Kodeeswaran Parameshwaran
Catrina Sims-Robinson
Subramaniam Uthayathas
Eleanor M Josephson
Nagalingam Rajakumar
Muralikrishnan Dhanasekaran
Vishnu Suppiramaniam

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cholinergic depletion in the medial septum (MS) is associated with impaired hippocampal-dependent learning and memory. Here we investigated whether long term potentiation (LTP) and synaptic currents, mediated by alpha-amino-3-hydroxy-5-methyl-isoxazole-4-propionate (AMPA) and N-methyl-D-aspartate (NMDA) receptors in the CA1 hippocampal region, are affected following cholinergic lesions of the MS. Stereotaxic intra-medioseptal infusions of a selective immunotoxin, 192-saporin, against cholinergic neurons or sterile saline were made in adult rats. Four days after infusions, hippocampal slices were made and LTP, whole cell, and single channel (AMPA or NMDA receptor) currents were recorded. Results demonstrated impairment in the induction and expression of LTP in lesioned rats. Lesioned rats also showed decreases in synaptic currents from CA1 pyramidal cells and synaptosomal single channels of AMPA and NMDA receptors. Our results suggest that MS cholinergic afferents modulate LTP and glutamatergic currents in the CA1 region of the hippocampus, providing a potential synaptic mechanism for the learning and memory deficits observed in the rodent model of selective MS cholinergic lesioning.

Indexed as

alpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic AcidAnimalsAntibodies, MonoclonalCA1 Region, HippocampalCholinergic AgentsCholinergic NeuronsEvoked PotentialsFemaleImmunoenzyme TechniquesLong-Term PotentiationRatsRats, Sprague-DawleyReceptors, N-Methyl-D-AspartateRibosome Inactivating Proteins, Type 1SaporinsSeptum of Brain192 IgG-saporinalpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic AcidAntibodies, MonoclonalCholinergic AgentsReceptors, N-Methyl-D-AspartateRibosome Inactivating Proteins, Type 1Saporins

Identifiers

PMID22355337
PMCPMC3280283

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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.