Evidence map›Paper›PMID 33949773›Full record

ArticleAlzheimer's & dementia : the journal of the Alzheimer's Association2021

Water exchange rate across the blood-brain barrier is associated with CSF amyloid-β 42 in healthy older adults.

Brian T Gold, Xingfeng Shao, Tiffany L Sudduth, Gregory A Jicha, Donna M Wilcock, Elayna R Seago, Danny J J Wang

Open access · hybridAbstract read
In one paragraph

Article in Alzheimer's & dementia : the journal of the Alzheimer's Association, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed, 1 pooled it
5.7field-weighted citation impact, top 3% 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

51 citing papers in PubMed, 1 synthesis or guideline pooled it, 71 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Simultaneous measurement of water transport across the blood-brain and blood-CSF barrier in the human brain with arterial spin labeling MRI.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2026
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  16. Celebrating 40 years of the University of Kentucky Alzheimer's Disease Research Center.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  17. 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
    Review
  18. Article
  19. The interaction between dysfunction of vasculature and tauopathy in Alzheimer's disease and related dementias.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Review
  20. Review
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

7 authors at 2 institutions in 1 country.

Brian T GoldDepartment of Neuroscience, Sanders-Brown Center on Aging, Lexington, Kentucky, USA.
Xingfeng ShaoLaboratory of FMRI Technology (LOFT), Mark & Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Los Angeles, California, USA.
Tiffany L SudduthSanders-Brown Center on Aging, Lexington, Kentucky, USA.
Gregory A JichaSanders-Brown Center on Aging, Lexington, Kentucky, USA.
Donna M WilcockSanders-Brown Center on Aging, Lexington, Kentucky, USA.
Elayna R SeagoDepartment of Neuroscience, Sanders-Brown Center on Aging, Lexington, Kentucky, USA.
Danny J J WangLaboratory of FMRI Technology (LOFT), Mark & Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Los Angeles, California, USA.
University of Kentucky · USUniversity of Southern California · US

Funding

University of Kentucky Alzheimer's Disease Research CenterP30AG072946 · NIA · UNIVERSITY OF KENTUCKY · PI LINDA J VAN ELDIK · 2021 to 2026
$23.5M
Imaging Cerebral and Retinal Microvasculature in Cerebral Small Vessel DiseaseUH3NS100614 · NINDS · UNIVERSITY OF SOUTHERN CALIFORNIA · PI KASHANI, AMIR H, RINGMAN, JOHN M · 2018 to 2020
$4.3M
Validation of Imaging and Blood-based Small Vessel VCID Biomarkers in Multiethnic PopulationU01NS100614 · NINDS · UNIVERSITY OF SOUTHERN CALIFORNIA · PI KASHANI, AMIR H, RINGMAN, JOHN M · 2023 to 2025
$3.9M
Identifying Associations between Brain Iron, Neurocognitive Networks and Protective FactorsR01AG068055 · NIA · UNIVERSITY OF KENTUCKY · PI GOLD, BRIAN TIMOTHY · 2021 to 2025
$2.8M
Validation of Imaging and Blood-based Small Vessel VCID Biomarkers in Multiethnic PopulationUF1NS100614 · NINDS · UNIVERSITY OF SOUTHERN CALIFORNIA · PI KASHANI, AMIR H, RINGMAN, JOHN M · 2021 to 2021
$2.6M
Imaging Cerebral and Retinal Microvasculature in Cerebral Small Vessel DiseaseUH2NS100614 · NINDS · UNIVERSITY OF SOUTHERN CALIFORNIA · PI KASHANI, AMIR H, RINGMAN, JOHN M · 2016 to 2017
$2.4M
Contributions of Alzheimer's Pathology and Cerebrovascular Factors to Cognitive AgingR01AG055449 · NIA · UNIVERSITY OF KENTUCKY · PI GOLD, BRIAN TIMOTHY · 2017 to 2021
$2.3M
Multiband ASL for Neurodevelopment StudyR01EB028297 · NIBIB · UNIVERSITY OF SOUTHERN CALIFORNIA · PI WANG, DANNY JJ · 2019 to 2023
$2.2M
BBB Permeability Imaging in CADASILR01NS114382 · NINDS · UNIVERSITY OF SOUTHERN CALIFORNIA · PI WANG, DANNY JJ · 2020 to 2024
$1.2M
Essential Siemens Prisma Fit Upgrade for the University of Kentucky 3T Research ScannerS10OD023573 · OD · UNIVERSITY OF KENTUCKY · PI SMITH, CHARLES DENNIS · 2017 to 2017
$813k
NIA NIH HHS P30 AG072946NIA NIH HHS R01 AG055449NIA NIH HHS R01 AG068055NIBIB NIH HHS R01 EB028297NIH HHS S10 OD023573NINDS NIH HHS R01 NS114382NINDS NIH HHS U01 NS100614NINDS NIH HHS UF1 NS100614NINDS NIH HHS UH2 NS100614NINDS NIH HHS UH3 NS100614
6 · The paper itself

Abstract

introductionWe tested if water exchange across the blood-brain barrier (BBB), estimated with a noninvasive magnetic resonance imaging (MRI) technique, is associated with cerebrospinal fluid (CSF) biomarkers of Alzheimer's disease (AD) and neuropsychological function.

methodsForty cognitively normal older adults (67-86 years old) were scanned with diffusion-prepared, arterial spin labeling (DP-ASL), which estimates water exchange rate across the BBB (k

resultsIn multiple brain regions, BBB k DISCUSSION: Our results suggest that low water exchange rate across the BBB is associated with low CSF Aβ42 concentration. These findings suggest that k

Indexed as

Amyloid beta-PeptidesHealthy VolunteersMagnetic Resonance ImagingPeptide FragmentsAgedAlzheimer DiseaseBiomarkersBlood-Brain BarrierBrainFemaleHumansMaleSpin Labelstau ProteinsWaterAmyloid beta-Peptidesamyloid beta-protein (1-42)BiomarkersPeptide FragmentsSpin Labelstau ProteinsWaterbiomarkerblood brain barriercerebrospinal fluidglymphaticmagnetic resonance imagingwater exchange

Identifiers

PMID33949773
PMCPMC8717840
OpenAlexW3159613901

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.