Evidence map›Paper›PMID 28786172›Full record

ArticleCNS neuroscience & therapeutics2017

Hippocampal synaptic and neural network deficits in young mice carrying the human APOE4 gene.

Guo-Zhu Sun, Yong-Chang He, Xiao Kuang Ma, Shuang-Tao Li, De-Jie Chen, Ming Gao, Shen-Feng Qiu, Jun-Xiang Yin, Jiong Shi, Jie Wu

Open access · bronzeAbstract read
In one paragraph

Article in CNS neuroscience & therapeutics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
2.0field-weighted citation impact, top 13% 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

28 citing papers in PubMed, 39 citations in OpenAlex.

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  17. Structural Plasticity of the Hippocampus in Neurodegenerative Diseases.International journal of molecular sciences · 2022
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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

10 authors at 3 institutions in 2 countries.

Guo-Zhu SunDepartment of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China.
Yong-Chang HeDepartment of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China.
Xiao Kuang MaDepartment of Neurobiology, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, USA.
Shuang-Tao LiDepartment of Neurobiology, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, USA.
De-Jie ChenDepartment of Neurobiology, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, USA.
Ming GaoDepartment of Neurobiology, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, USA.
Shen-Feng QiuDepartment of Basic Medical Sciences, University of Arizona College of Medicine, Phoenix, AZ, USA.
Jun-Xiang YinDepartment of Neurology, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, USA.
Jiong ShiDepartment of Neurology, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, USA.
Jie WuDepartment of Neurobiology, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, USA.ORCID http://orcid.org/0000-0002-6039-9119
Barrow Neurological Institute · USHebei Medical University · CNUniversity of Arizona · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionApolipoprotein E4 (APOE4) is a major genetic risk factor for late-onset sporadic Alzheimer disease. Emerging evidence demonstrates a hippocampus-associated learning and memory deficit in aged APOE4 human carriers and also in aged mice carrying human APOE4 gene. This suggests that either exogenous APOE4 or endogenous APOE4 alters the cognitive profile and hippocampal structure and function. However, little is known regarding how Apoe4 modulates hippocampal dendritic morphology, synaptic function, and neural network activity in young mice.

aimIn this study, we compared hippocampal dendritic and spine morphology and synaptic function of young (4 months) mice with transgenic expression of the human APOE4 and APOE3 genes.

methodsHippocampal dendritic and spine morphology and synaptic function were assessed by neuronal imaging and electrophysiological approaches.

resultsMorphology results showed that shortened dendritic length and reduced spine density occurred at hippocampal CA1 neurons in Apoe4 mice compared to Apoe3 mice. Electrophysiological results demonstrated that in the hippocampal CA3-CA1 synapses of young Apoe4 mice, basic synaptic transmission, and paired-pulse facilitation were enhanced but long-term potentiation and carbachol-induced hippocampal theta oscillations were impaired compared to young Apoe3 mice. However, both Apoe genotypes responded similarly to persistent stimulations (4, 10, and 40 Hz for 4 seconds).

conclusionOur results suggest significant alterations in hippocampal dendritic structure and synaptic function in Apoe4 mice, even at an early age.

Indexed as

AnimalsApolipoprotein E3Apolipoprotein E4Biophysical PhenomenaDendritesDendritic SpinesDisease Models, AnimalElectric StimulationExcitatory Postsynaptic PotentialsHippocampusHumansIn Vitro TechniquesMiceMice, TransgenicNerve NetNeuronsApolipoprotein E3Apolipoprotein E4apolipoprotein E4dendriteshippocampussynaptic plasticitytheta oscillations

Identifiers

PMID28786172
PMCPMC6492660
OpenAlexW2743308848

What OpenQuestion holds

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Read underepoch 390

Registered trials

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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.