Evidence map›Paper›PMID 25842242›Full record

ArticleNeuropharmacology2015

Neurotensinergic augmentation of glutamate release at the perforant path-granule cell synapse in rat dentate gyrus: Roles of L-Type Ca²⁺ channels, calmodulin and myosin light-chain kinase.

Haopeng Zhang, Hailong Dong, Saobo Lei

Abstract read
In one paragraph

Article in Neuropharmacology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.1field-weighted citation impact, top 26% 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

8 citing papers in PubMed, 17 citations in OpenAlex.

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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 2 institutions in 2 countries.

Haopeng ZhangDepartment of Basic Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND 58203, USA; Department of Anesthesiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi Province, PR China.
Hailong DongDepartment of Anesthesiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi Province, PR China.
Saobo LeiDepartment of Basic Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND 58203, USA. Electronic address: saobo.lei@med.und.edu.
University of North Dakota · USXijing Hospital · CN

Funding

Roles and mechanisms of neurotensin in learning and memoryR01MH082881 · NIMH · UNIVERSITY OF NORTH DAKOTA · PI LEI, SAOBO · 2008 to 2015
$2.5M
NIMH NIH HHS MH082881NIMH NIH HHS R01 MH082881
6 · The paper itself

Abstract

Neurotensin (NT) serves as a neuromodulator in the brain where it is involved in modulating a variety of physiological functions including nociception, temperature, blood pressure and cognition, and many neurological diseases such as Alzheimer's disease, schizophrenia and Parkinson's disease. Whereas there is compelling evidence demonstrating that NT facilitates cognitive processes, the underlying cellular and molecular mechanisms have not been fully determined. Because the dentate gyrus expresses high densities of NT and NT receptors, we examined the effects of NT on the synaptic transmission at the synapse formed between the perforant path (PP) and granule cells (GC) in the rats. Our results demonstrate that NT persistently increased the amplitude of the AMPA receptor-mediated EPSCs at the PP-GC synapse. NT-induced increases in AMPA EPSCs were mediated by presynaptic NTS1 receptors. NT reduced the coefficient of variation and paired-pulse ratio of AMPA EPSCs suggesting that NT facilitates presynaptic glutamate release. NT increased the release probability and the number of readily releasable vesicles with no effects on the rate of recovery from vesicle depletion. NT-mediated augmentation of glutamate release required the influx of Ca(2+) via L-type Ca(2+) channels and the functions of calmodulin and myosin light chain kinase. Our results provide a cellular and molecular mechanism to explain the roles of NT in the hippocampus.

Indexed as

AnimalsCalciumCalcium Channels, L-TypeCalmodulinDentate GyrusExcitatory Postsynaptic PotentialsGlutamic AcidMice, KnockoutMyosin-Light-Chain KinaseNeuronsNeurotensinNeurotransmitter AgentsPatch-Clamp TechniquesPerforant PathwayRats, Sprague-DawleyReceptors, AMPACalciumCalcium Channels, L-TypeCalmodulinGlutamic AcidMyosin-Light-Chain KinaseNeurotensinNeurotransmitter AgentsReceptors, AMPAReceptors, NeurotensinAlzheimer's diseaseCa(2+)Ca(2+) channelsglutamateG proteinsHippocampusMyosin light chain kinaseSynapseSynaptic transmission

Identifiers

PMID25842242
PMCPMC4465994
OpenAlexW2018994941

What OpenQuestion holds

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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.