Evidence map›Paper›PMID 32910547›Full record

ArticleMagnetic resonance in medicine2021

Increased blood-brain barrier permeability to water in the aging brain detected using noninvasive multi-TE ASL MRI.

Yolanda Ohene, Ian F Harrison, Phoebe G Evans, David L Thomas, Mark F Lythgoe, Jack A Wells

Open access · hybridAbstract read
In one paragraph

Article in Magnetic resonance in medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
2.3field-weighted citation impact, top 9% 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

30 citing papers in PubMed, 40 citations in OpenAlex.

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  10. Biomarkers of blood-brain barrier and neurovascular unit integrity in human cognitive impairment and dementia.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
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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

6 authors at 2 institutions in 1 country.

Yolanda OheneUCL Centre for Advanced Biomedical Imaging, Division of Medicine, University College London, London, United Kingdom.ORCID 0000-0002-0213-6302
Ian F HarrisonUCL Centre for Advanced Biomedical Imaging, Division of Medicine, University College London, London, United Kingdom.
Phoebe G EvansUCL Centre for Advanced Biomedical Imaging, Division of Medicine, University College London, London, United Kingdom.
David L ThomasNeuroradiological Academic Unit, Department of Brain Repair and Rehabilitation, UCL Queen Square Institute of Neurology, University College London, London, United Kingdom.
Mark F LythgoeUCL Centre for Advanced Biomedical Imaging, Division of Medicine, University College London, London, United Kingdom.
Jack A WellsUCL Centre for Advanced Biomedical Imaging, Division of Medicine, University College London, London, United Kingdom.
University College London · GBWellcome Centre for Human Neuroimaging · GB

Funding

British Heart Foundation FS/18/72/33942Department of HealthMedical Research Council MR/K501268/1Wellcome TrustWellcome Trust 204624/Z/16/Z
6 · The paper itself

Abstract

purposeA fundamental goal in the drive to understand and find better treatments for dementia is the identification of the factors that render the aging brain vulnerable to neurodegenerative disease. Recent evidence indicates the integrity of the blood-brain barrier (BBB) to be an important component of functional failure underlying age-related cognitive decline. Practical and sensitive measurement is necessary, therefore, to support diagnostic and therapeutic strategies targeted at maintaining BBB integrity in aging patients. Here, we investigated changes in BBB permeability to endogenous blood water in the aging brain.

methodsA multiple-echo-time arterial spin-labeling MRI technique, implemented on a 9.4T Bruker imaging system, was applied to 7- and 27-month-old mice to measure changes in water permeability across the BBB with aging.

resultsWe observed that BBB water permeability was 32% faster in aged mice. This occurred along with a 2.1-fold increase in mRNA expression of aquaporin-4 water channels and a 7.1-fold decrease in mRNA expression of α-syntrophin protein, which anchors aquaporin-4 to the BBB.

conclusionAge-related changes to water permeability across the BBB can be captured using noninvasive noncontrast MRI techniques.

Indexed as

Blood-Brain BarrierNeurodegenerative DiseasesAgingAnimalsBrainHumansMagnetic Resonance ImagingMicePermeabilityWaterWateragingaquaporin-4arterial spin labelingblood-brain barrierblood-brain interfacewater permeability

Identifiers

PMID32910547
PMCPMC8432141
OpenAlexW3086413077

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.