Evidence map›Paper›PMID 32036033›Full record

ReviewNeurobiology of disease2020

Apolipoprotein E and oxidative stress in brain with relevance to Alzheimer's disease.

D Allan Butterfield, Mark P Mattson

Open access · goldAbstract readReview
In one paragraph

Review in Neurobiology of disease, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 98 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
98citing papers in PubMed, 1 pooled it
14.0field-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

98 citing papers in PubMed, 1 synthesis or guideline pooled it, 180 citations in OpenAlex.

  1. Hearing loss and dementia: radiologic and biomolecular basis of their shared characteristics. A systematic review.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2021
    Pooled it
  2. Trial
  3. Article
  4. Article
  5. Article
  6. Article
  7. Alcohol use andAlzheimer's & dementia. Behavior & socioeconomics of aging · 2026
    Article
  8. Review
  9. Article
  10. Journal of Alzheimer's disease : JAD · 2026
    Article
  11. Article
  12. Article
  13. Article
  14. Exploratory associations between APOE-εFrontiers in neurology · 2026
    Article
  15. Regarding the importance of population diversity validation in Alzheimer's disease models.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Article

38 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

2 authors at 2 institutions in 1 country.

D Allan ButterfieldDepartment of Chemistry and Sanders-Brown Center on Aging, University of Kentucky, Lexington, KY 40506, USA. Electronic address: dabcns@uky.edu.
Mark P MattsonDepartment of Neuroscience, Johns Hopkins University, Baltimore, MD 21205, USA.
Johns Hopkins University · USUniversity of Kentucky · US

Funding

APOE and the PPP: Glucose Metabolism and Oxidative Stress in Alzheimer's DiseaseR01AG060056 · NIA · UNIVERSITY OF KENTUCKY · PI JOHNSON, LANCE ALLEN · 2018 to 2022
$2.5M
NIA NIH HHS R01 AG060056
6 · The paper itself

Abstract

Inheritance of apolipoprotein E4 (APOE4) is a major risk factor for development of Alzheimer's disease (AD). This lipoprotein, in contrast to apoE2, has arginine residues at positions 112 and 158 in place of cysteines in the latter isoform. In apoE3, the Cys at residue 158 is replaced by an arginine residue. This differential amino acid composition of the three genotypes of APOE have profound influence on the structure, binding properties, and multiple functions of this lipoprotein. Moreover, AD brain is under a high degree of oxidative stress, including that associated with amyloid β-peptide (Aβ) oligomers. Lipid peroxidation produces the highly reactive and neurotoxic molecule, 4-hydroxynonenal (HNE) that forms covalent bonds with cysteine residues (Cys) [as well as with Lys and His residues]. Covalently modified Cys significantly alter structure and function of modified proteins. HNE bound to Cys residue(s) on apoE2 and apoE3 lessens the chance of HNE damage other proteins. apoE4, lacking Cys residues, is unable to scavenge HNE, permitting this latter neurotoxic molecule to lead to oxidative modification of neuronal proteins and eventual cell death. We posit that this lack of HNE scavenging activity in apoE4 significantly contributes to the association of APOE4 inheritance and increased risk of developing AD. Apoe knock-out mice provide insights into the role of this lipoprotein in oxidative stress. Targeted replacement mice in which the mouse gene of Apoe is separately replaced by the human APOE2, APOE3, or APOE4 genes, while keeping the mouse promoter assures the correct location and amount of the human protein isoform. Human APOE targeted replacement mice have been used to investigate the notion that oxidative damage to and death of neurons in AD and its earlier stages is related to APOE genotype. This current paper reviews the intersection of human APOE genotype, oxidative stress, and diminished function of this lipoprotein as a major contributing risk factor for development of AD. Discussion of potential therapeutic strategies to mitigate against the elevated risk of developing AD with inheritance of the APOE4 allele also is presented.

Indexed as

Oxidative StressAldehydesAlzheimer DiseaseAmyloid beta-PeptidesAnimalsApolipoprotein E2Apolipoprotein E3Apolipoprotein E4Apolipoproteins EBrainCell DeathHumansLipid PeroxidationMiceNeuronsProtein Isoforms4-hydroxy-2-nonenalAldehydesAmyloid beta-PeptidesApolipoprotein E2Apolipoprotein E3Apolipoprotein E4Apolipoproteins EProtein IsoformsAlzheimer's diseaseApolipoprotein EKey cysteine residuesOxidative stressTargeted replacement mice

Identifiers

PMID32036033
PMCPMC7085980
OpenAlexW3004862463

What OpenQuestion holds

Textmetadata
LicenceTDM
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.