Evidence map›Paper›PMID 21228172›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2011

PKC ε activation prevents synaptic loss, Aβ elevation, and cognitive deficits in Alzheimer's disease transgenic mice.

Jarin Hongpaisan, Miao-Kun Sun, Daniel L Alkon

Open access · greenAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 121 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
121citing papers in PubMed, 1 pooled it
10.9field-weighted citation impact, top 1% 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

121 citing papers in PubMed, 1 synthesis or guideline pooled it, 222 citations in OpenAlex.

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  16. Behaviour Hallmarks in Alzheimer's Disease 5xFAD Mouse Model.International journal of molecular sciences · 2024
    Review
  17. Review
  18. The effects of carvacrol and p-cymene on AβCNS neuroscience & therapeutics · 2024
    Article
  19. Article
  20. Article

61 more citing papers are in PubMed but not listed here.

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.

Jarin HongpaisanBlanchette Rockefeller Neurosciences Institute at West Virginia University, Morgantown, West Virginia 26505, USA. jhongpaisan@brni.org
Miao-Kun Sun
Daniel L Alkon
Blanchette Rockefeller Neurosciences Institute · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Among the pathologic hallmarks of Alzheimer's disease (AD) neurodegeneration, only synaptic loss in the brains of AD patients closely correlates with the degree of dementia in vivo. Here, we describe a molecular basis for this AD loss of synapses: pathological reduction of synaptogenic PKC isozymes and their downstream synaptogenic substrates, such as brain-derived neurotrophic factor. This reduction, particularly of PKC α and ε, occurs in association with elevation of soluble β amyloid protein (Aβ), but before the appearance of the amyloid plaques or neuronal loss in the Tg2576 AD transgenic mouse strain. Conversely, treatment of the Tg2576 mouse brain with the PKC activator, bryostatin-1, restores normal or supranormal levels of PKC α and ε, reduces the level of soluble Aβ, prevents and/or reverses the loss of hippocampal synapses, and prevents the memory impairment observed at 5 months postpartum. Similarly, the PKC ε-specific activator, DCP-LA, effectively prevents synaptic loss, amyloid plaques, and cognitive deficits (also prevented by bryostatin-1) in the much more rapidly progressing 5XFAD transgenic strain. These results suggest that synaptic loss and the resulting cognitive deficits depend on the balance between the lowering effects of Aβ on PKC α and ε versus the lowering effects of PKC on Aβ in AD transgenic mice.

Indexed as

Alzheimer DiseaseAmyloid beta-PeptidesAnimalsBrain-Derived Neurotrophic FactorBryostatinsCaprylatesCognition DisordersEnzyme ActivatorsHippocampusIsoenzymesMaleMaze LearningMemoryMiceMice, TransgenicPlaque, Amyloid8-(2-(2-pentyl-cyclopropylmethyl)cyclopropyl)octanoic acidAmyloid beta-PeptidesBrain-Derived Neurotrophic Factorbryostatin 1BryostatinsCaprylatesEnzyme ActivatorsIsoenzymesProtein Kinase C-alphaProtein Kinase C-epsilon

Identifiers

PMID21228172
PMCPMC6623433
OpenAlexW2069710540

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.