Evidence map›Paper›PMID 31186040›Full record

ReviewMolecular neurodegeneration2019

Apolipoprotein E4, inhibitory network dysfunction, and Alzheimer's disease.

Ramsey Najm, Emily A Jones, Yadong Huang

Open access · goldAbstract readReview
In one paragraph

Review in Molecular neurodegeneration, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 106 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
106citing papers in PubMed, 3 pooled it
13.2field-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

106 citing papers in PubMed, 3 syntheses or guidelines pooled it, 190 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. A compact GAD67 promoter enables inhibitory neuron-targeted AAV gene therapy for seizure suppression.Molecular therapy : the journal of the American Society of Gene Therapy · 2026
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  10. Plasma Proteomic Analysis ofmedRxiv : the preprint server for health sciences · 2026
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  16. ACE2: Friend or Foe in Post-COVID-19 Neurodegeneration?International journal of molecular sciences · 2025
    Review
  17. Article
  18. Article
  19. Article
  20. Article

46 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.

Ramsey NajmGladstone Institute of Neurological Disease, San Francisco, CA, 94158, USA.
Emily A JonesGladstone Institute of Neurological Disease, San Francisco, CA, 94158, USA.
Yadong HuangGladstone Institute of Neurological Disease, San Francisco, CA, 94158, USA. yadong.huang@gladstone.ucsf.edu.ORCID 0000-0002-5871-4589
Gladstone Institutes · US

Funding

Study ApoE4's Effects on Hippocampal Network Activity in Alzheimer's DiseaseR01AG055682 · NIA · J. DAVID GLADSTONE INSTITUTES · PI HUANG, YADONG · 2017 to 2021
$3.6M
Roles of ApoE4 in Brain Aging and Alzheimer's DiseaseRF1AG055421 · NIA · J. DAVID GLADSTONE INSTITUTES · PI HUANG, YADONG · 2017 to 2017
$3.3M
Studying Alzheimer's Disease Using Human iPS CellsRF1AG048030 · NIA · J. DAVID GLADSTONE INSTITUTES · PI HUANG, YADONG · 2014 to 2014
$2.4M
Optogenetic Study of ApoE4-Related Alzheimers DiseaseRF1AG047655 · NIA · J. DAVID GLADSTONE INSTITUTES · PI HUANG, YADONG, KREITZER, ANATOL · 2014 to 2014
$2.1M
Determining How Alzheimer's Disease Alters Hippocampal Network Signatures of Memory in Mouse ModelsF31AG057150 · NIA · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI AERY JONES, EMILY ASTER · 2017 to 2019
$69k
NIA NIH HHS F31 AG057150NIA NIH HHS R01 AG055682NIA NIH HHS RF1 AG047655NIA NIH HHS RF1 AG048030NIA NIH HHS RF1 AG055421
6 · The paper itself

Abstract

Apolipoprotein (apo) E4 is the major genetic risk factor for Alzheimer's disease (AD), increasing risk and decreasing age of disease onset. Many studies have demonstrated the detrimental effects of apoE4 in varying cellular contexts. However, the underlying mechanisms explaining how apoE4 leads to cognitive decline are not fully understood. Recently, the combination of human induced pluripotent stem cell (hiPSC) modeling of neurological diseases in vitro and electrophysiological studies in vivo have begun to unravel the intersection between apoE4, neuronal subtype dysfunction or loss, subsequent network deficits, and eventual cognitive decline. In this review, we provide an overview of the literature describing apoE4's detrimental effects in the central nervous system (CNS), specifically focusing on its contribution to neuronal subtype dysfunction or loss. We focus on γ-aminobutyric acid (GABA)-expressing interneurons in the hippocampus, which are selectively vulnerable to apoE4-mediated neurotoxicity. Additionally, we discuss the importance of the GABAergic inhibitory network to proper cognitive function and how dysfunction of this network manifests in AD. Finally, we examine how apoE4-mediated GABAergic interneuron loss can lead to inhibitory network deficits and how this deficit results in cognitive decline. We propose the following working model: Aging and/or stress induces neuronal expression of apoE. GABAergic interneurons are selectively vulnerable to intracellularly produced apoE4, through a tau dependent mechanism, which leads to their dysfunction and eventual death. In turn, GABAergic interneuron loss causes hyperexcitability and dysregulation of neural networks in the hippocampus and cortex. This dysfunction results in learning, memory, and other cognitive deficits that are the central features of AD.

Indexed as

Alzheimer DiseaseAnimalsApolipoprotein E4HumansInduced Pluripotent Stem CellsMemoryMemory DisordersNerve NetApolipoprotein E4Alzheimer’s diseaseApolipoprotein EGABAergic interneuronHyperexcitabilityInhibitory networkSelective vulnerabilityTau

Identifiers

PMID31186040
PMCPMC6558779
OpenAlexW2953148923

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.