Evidence map›Paper›PMID 33406436›Full record

ArticleCell reports2021

ApoE4 Impairs Neuron-Astrocyte Coupling of Fatty Acid Metabolism.

Guoyuan Qi, Yashi Mi, Xiaojian Shi, Haiwei Gu, Roberta Diaz Brinton, Fei Yin

Open access · goldAbstract read
In one paragraph

Article in Cell reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 246 papers.

0numbers the graph read from it
0cells of the map it votes in
246citing papers in PubMed
20.4field-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

246 citing papers in PubMed, 352 citations in OpenAlex.

  1. Trial
  2. Review
  3. Cellular and systemic modifiers of alpha-synuclein proteostasis.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2026
    Review
  4. Article
  5. Progressive behavioral and cognitive decline inbioRxiv : the preprint server for biology · 2026
    Article
  6. Neurons run on fat.npj metabolic health and disease · 2026
    Article
  7. Article
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  9. Article
  10. Article
  11. Review
  12. Article
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  15. bioRxiv : the preprint server for biology · 2026
    Article
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  19. From lipid overload to autophagy collapse: how lipid dysregulation drives chronic inflammation and metabolic disease.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2026
    Review
  20. Article

186 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

6 authors at 3 institutions in 1 country.

Guoyuan QiCenter for Innovation in Brain Science, University of Arizona Health Sciences, Tucson, AZ 85724, USA.
Yashi MiCenter for Innovation in Brain Science, University of Arizona Health Sciences, Tucson, AZ 85724, USA.
Xiaojian ShiCollege of Health Solutions, Arizona State University, Scottsdale, AZ 85259, USA.
Haiwei GuCollege of Health Solutions, Arizona State University, Scottsdale, AZ 85259, USA.
Roberta Diaz BrintonCenter for Innovation in Brain Science, University of Arizona Health Sciences, Tucson, AZ 85724, USA; Department of Pharmacology, College of Medicine Tucson, University of Arizona, Tucson, AZ 85724, USA; Department of Neurology, College of Medicine Tucson, University of Arizona, Tucson, AZ 85724, USA; Graduate Interdisciplinary Program in Neuroscience, University of Arizona, Tucson, AZ 85721, USA.
Fei YinCenter for Innovation in Brain Science, University of Arizona Health Sciences, Tucson, AZ 85724, USA; Department of Pharmacology, College of Medicine Tucson, University of Arizona, Tucson, AZ 85724, USA; Graduate Interdisciplinary Program in Neuroscience, University of Arizona, Tucson, AZ 85721, USA. Electronic address: feiyin@arizona.edu.
Arizona Science Center · USArizona State University · USCenter for Innovation · US

Funding

Timing of Menopausal Hormone Therapy across Perimenopause to Menopause Transition: Neuroimmune System in BrainP01AG026572 · NIA · UNIVERSITY OF SOUTHERN CALIFORNIA · PI Schantel Williams · 2006 to 2026
$53.7M
NIA NIH HHS P01 AG026572
6 · The paper itself

Abstract

Alzheimer's disease (AD) risk gene ApoE4 perturbs brain lipid homeostasis and energy transduction. However, the cell-type-specific mechanism of ApoE4 in modulating brain lipid metabolism is unclear. Here, we describe a detrimental role of ApoE4 in regulating fatty acid (FA) metabolism across neuron and astrocyte in tandem with their distinctive mitochondrial phenotypes. ApoE4 disrupts neuronal function by decreasing FA sequestering in lipid droplets (LDs). FAs in neuronal LDs are exported and internalized by astrocytes, with ApoE4 diminishing the transport efficiency. Further, ApoE4 lowers FA oxidation and leads to lipid accumulation in both astrocyte and the hippocampus. Importantly, diminished capacity of ApoE4 astrocytes in eliminating neuronal lipids and degrading FAs accounts for their compromised metabolic and synaptic support to neurons. Collectively, our findings reveal a mechanism of ApoE4 disruption to brain FA and bioenergetic homeostasis that could underlie the accelerated lipid dysregulation and energy deficits and increased AD risk for ApoE4 carriers.

Indexed as

Lipid MetabolismAlzheimer DiseaseAnimalsApolipoprotein E4AstrocytesBrainEnergy MetabolismFatty AcidsGene Knock-In TechniquesHomeostasisHumansLipid DropletsMaleMiceMice, Inbred C57BLMitochondriaApolipoprotein E4Fatty AcidsApoE4astrocytefatty acid metabolismlipid dropletlipid transportmetabolic couplingmitochondrianeuron

Identifiers

PMID33406436
PMCPMC7837265
OpenAlexW3120372525

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.