Evidence map›Paper›PMID 37132287›Full record

ArticleJournal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism2023

Differential association of cerebral blood flow and anisocytosis in APOE ε4 carriers at midlife.

Maria-Eleni Dounavi, Elijah Mak, Peter Swann, Audrey Low, Graciela Muniz-Terrera, Anna McKeever, Marianna Pope, Guy B Williams, Katie Wells, Brian Lawlor and 8 more

Open access · hybridAbstract read
In one paragraph

Article in Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
2.8field-weighted citation impact, top 10% 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

9 citing papers in PubMed, 12 citations in OpenAlex.

  1. Article
  2. The physiological effects of APOE genotype in healthy young/middle-aged individuals.Biological reviews of the Cambridge Philosophical Society · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Hypothalamic volume, sleep, and APOE genotype in cognitively healthy adults.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  8. APOE ε4-associated heterogeneity of neuroimaging biomarkers across the Alzheimer's disease continuum.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  9. Article
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

18 authors at 6 institutions in 3 countries.

Maria-Eleni DounaviDepartment of Psychiatry, School of Clinical Medicine, University of Cambridge, Cambridge, UK.ORCID 0000-0001-8287-346X
Elijah MakDepartment of Psychiatry, School of Clinical Medicine, University of Cambridge, Cambridge, UK.
Peter SwannDepartment of Psychiatry, School of Clinical Medicine, University of Cambridge, Cambridge, UK.
Audrey LowDepartment of Psychiatry, School of Clinical Medicine, University of Cambridge, Cambridge, UK.
Graciela Muniz-TerreraCentre for Dementia Prevention, University of Edinburgh, Edinburgh, UK.
Anna McKeeverDepartment of Psychiatry, School of Clinical Medicine, University of Cambridge, Cambridge, UK.
Marianna PopeDepartment of Psychiatry, School of Clinical Medicine, University of Cambridge, Cambridge, UK.
Guy B WilliamsDepartment of Clinical Neurosciences and Wolfson Brain Imaging Centre, University of Cambridge, Cambridge, UK.
Katie WellsCentre for Dementia Prevention, University of Edinburgh, Edinburgh, UK.
Brian LawlorInstitute of Neuroscience, Trinity College Dublin, University of Dublin, Dublin, Ireland.
Lorina NaciInstitute of Neuroscience, Trinity College Dublin, University of Dublin, Dublin, Ireland.
Paresh MalhotraDivision of Brain Science, Imperial College Healthcare NHS Trust, UK.
Clare MackayDepartment of Psychiatry, University of Oxford, Oxford, UK.
Ivan KoychevDepartment of Psychiatry, University of Oxford, Oxford, UK.
Karen RitchieINM, Univ Montpellier, INSERM, Montpellier, France.
Li SuDepartment of Psychiatry, School of Clinical Medicine, University of Cambridge, Cambridge, UK.
Craig W RitchieCentre for Dementia Prevention, University of Edinburgh, Edinburgh, UK.
John T O'BrienDepartment of Psychiatry, School of Clinical Medicine, University of Cambridge, Cambridge, UK.
University of Cambridge · GBUniversity of Edinburgh · GBTrinity College Dublin · IEUniversity of Oxford · GBImperial College Healthcare NHS Trust · GBInserm · FR

Funding

Department of Health BRC-1215-20014Medical Research Council
6 · The paper itself

Abstract

Cerebral hemodynamic alterations have been observed in apolipoprotein ε4 (APOE4) carriers at midlife, however the physiological underpinnings of this observation are poorly understood. Our goal was to investigate cerebral blood flow (CBF) and its spatial coefficient of variation (CoV) in relation to APOE4 and a measure of erythrocyte anisocytosis (red blood cell distribution width - RDW) in a middle-aged cohort. Data from 563 participants in the PREVENT-Dementia study scanned with 3 T MRI cross-sectionally were analysed. Voxel-wise and region-of-interest analyses within nine vascular regions were run to detect areas of altered perfusion. Within the vascular regions, interaction terms between APOE4 and RDW in predicting CBF were examined. Areas of hyperperfusion in APOE4 carriers were detected mainly in frontotemporal regions. The APOE4 allele differentially moderated the association between RDW and CBF, an association which was more prominent in the distal vascular territories (p - [0.01, 0.05]). The CoV was not different between the considered groups. We provide novel evidence that in midlife, RDW and CBF are differentially associated in APOE4 carriers and non-carriers. This association is consistent with a differential hemodynamic response to hematological alterations in APOE4 carriers.

Indexed as

Alzheimer DiseaseApolipoprotein E4Cerebrovascular CirculationErythrocyte IndicesAge FactorsHeterozygoteHumansMiddle AgedApolipoprotein E4APOE4CBFhemodynamicsperfusionRDW

Identifiers

PMID37132287
PMCPMC10581239
OpenAlexW4367835127

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.