Evidence map›Paper›PMID 31570539›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2019

Tumor Necrosis Factor-α-Mediated Metaplastic Inhibition of LTP Is Constitutively Engaged in an Alzheimer's Disease Model.

Anurag Singh, Owen D Jones, Bruce G Mockett, Shane M Ohline, Wickliffe C Abraham

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
1.8field-weighted citation impact, top 16% 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

24 citing papers in PubMed, 37 citations in OpenAlex.

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  10. Neuroplasticity in the transition from acute to chronic pain.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2024
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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

5 authors at 1 institution in 1 country.

Anurag SinghDepartment of Psychology, Brain Health Research Centre, Brain Research New Zealand, University of Otago, Dunedin 9054, New Zealand.ORCID 0000-0002-7401-4355
Owen D JonesDepartment of Psychology, Brain Health Research Centre, Brain Research New Zealand, University of Otago, Dunedin 9054, New Zealand.
Bruce G MockettDepartment of Psychology, Brain Health Research Centre, Brain Research New Zealand, University of Otago, Dunedin 9054, New Zealand.
Shane M OhlineDepartment of Psychology, Brain Health Research Centre, Brain Research New Zealand, University of Otago, Dunedin 9054, New Zealand.
Wickliffe C AbrahamDepartment of Psychology, Brain Health Research Centre, Brain Research New Zealand, University of Otago, Dunedin 9054, New Zealand cabraham@psy.otago.ac.nz.ORCID 0000-0001-9919-0622
Brain Research New Zealand · NZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

LTP, a fundamental mechanism of learning and memory, is a highly regulated process. One form of regulation is metaplasticity (i.e., the activity-dependent and long-lasting changes in neuronal state that orchestrate the direction, magnitude, and persistence of future synaptic plasticity). We have previously described a heterodendritic metaplasticity effect, whereby strong high-frequency priming stimulation in stratum oriens inhibits subsequent LTP in the stratum radiatum of hippocampal area CA1, potentially by engagement of the enmeshed astrocytic network. This effect may occur due to neuron-glia interactions in response to priming stimulation that leads to the release of gliotransmitters. Here we found in male rats that TNFα and associated signal transduction enzymes, but not interleukin-1β (IL-1β), were responsible for mediating the metaplasticity effect. Replacing priming stimulation with TNFα incubation reproduced these effects. As TNFα levels are elevated in Alzheimer's disease, we examined whether heterodendritic metaplasticity is dysregulated in a transgenic mouse model of the disease, either before or after amyloid plaque formation. We showed that TNFα and IL-1β levels were significantly increased in aged but not young transgenic mice. Although control LTP was impaired in the young transgenic mice, it was not TNFα-dependent. In the older transgenic mice, however, LTP was impaired in a way that occluded further reduction by heterosynaptic metaplasticity, whereas LTP was entirely rescued by incubation with a TNFα antibody, but not an IL-1β antibody. Thus, TNFα mediates a heterodendritic metaplasticity in healthy rodents that becomes constitutively and selectively engaged in a mouse model of Alzheimer's disease.

Indexed as

Long-Term PotentiationAlzheimer DiseaseAnimalsCA1 Region, HippocampalDendritesDisease Models, AnimalMaleRats, Sprague-DawleyRats, TransgenicSignal TransductionTumor Necrosis Factor-alphaTumor Necrosis Factor-alphaAlzheimer's diseasegliaLTPmetaplasticityneuroinflammationTNFα

Identifiers

PMID31570539
PMCPMC6855674
OpenAlexW2978132028

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.