Evidence map›Paper›PMID 33454745›Full record

ArticleCerebral cortex (New York, N.Y. : 1991)2021

Effect of Aging on the Viscoelastic Properties of Hippocampal Subfields Assessed with High-Resolution MR Elastography.

Peyton L Delgorio, Lucy V Hiscox, Ana M Daugherty, Faria Sanjana, Ryan T Pohlig, James M Ellison, Christopher R Martens, Hillary Schwarb, Matthew D J McGarry, Curtis L Johnson

Open access · greenAbstract read
In one paragraph

Article in Cerebral cortex (New York, N.Y. : 1991), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 1 pooled it
2.2field-weighted citation impact, top 13% 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

40 citing papers in PubMed, 1 synthesis or guideline pooled it, 50 citations in OpenAlex.

  1. Pooled it
  2. Measuring Brain Stiffness in Normal Adults According to Age and Sex Using Virtual MR Elastography: A Preliminary Study.Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine · 2026
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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

10 authors at 4 institutions in 1 country.

Peyton L DelgorioDepartment of Biomedical Engineering, University of Delaware, Newark, DE 19716, USA.ORCID 0000-0001-6577-139X
Lucy V HiscoxDepartment of Biomedical Engineering, University of Delaware, Newark, DE 19716, USA.
Ana M DaughertyDepartment of Psychology, Institute of Gerontology, Wayne State University, Detroit, MI 48202, USA.
Faria SanjanaDepartment of Kinesiology and Applied Physiology, University of Delaware, Newark, DE 19713, USA.
Ryan T PohligBiostatistics Core Facility, College of Health Sciences, University of Delaware, Newark, DE 19713, USA.
James M EllisonSwank Center for Memory Care and Geriatric Consultation, ChristianaCare, Wilmington, DE 19801, USA.
Christopher R MartensDepartment of Kinesiology and Applied Physiology, University of Delaware, Newark, DE 19713, USA.ORCID 0000-0003-0578-2948
Hillary SchwarbBeckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
Matthew D J McGarryThayer School of Engineering, Dartmouth College, Hanover, NH 03755, USA.
Curtis L JohnsonDepartment of Biomedical Engineering, University of Delaware, Newark, DE 19716, USA.ORCID 0000-0002-7760-131X
University of Delaware · USDartmouth College · USUniversity of Illinois Urbana-Champaign · USWayne State University · US

Funding

Predictive Modeling & Optimal Control Framework for Model-Based Epidemic Response in DelawareP20GM103446 · NIGMS · UNIVERSITY OF DELAWARE · PI MELINDA K DUNCAN · 2012 to 2026
$67.2M
Vascular Consequences of Duchenne Muscular DystrophyP20GM113125 · NIGMS · UNIVERSITY OF DELAWARE · PI SIONS, JACLYN MEGAN · 2016 to 2025
$23.3M
Updated confocal microscope in the Imaging Core facility to support biomedical researchP20GM103653 · NIGMS · DELAWARE STATE UNIVERSITY · PI HARRINGTON, MELISSA A · 2012 to 2022
$22.7M
High-Resolution, Anisotropic MR Elastography of the BrainR01EB027577 · NIBIB · UNIVERSITY OF DELAWARE · PI BAYLY, PHILIP V, JOHNSON, CURTIS L · 2019 to 2022
$2.7M
Mechanical integrity of memory systems in mild cognitive impairmentR01AG058853 · NIA · UNIVERSITY OF DELAWARE · PI JOHNSON, CURTIS L · 2018 to 2022
$2.3M
NAD+ Therapy for Improving Memory & Cerebrovasular Function in Patients with MCIK01AG054731 · NIA · UNIVERSITY OF DELAWARE · PI MARTENS, CHRISTOPHER · 2017 to 2021
$723k
NIA NIH HHS K01 AG054731NIA NIH HHS R01 AG058853NIBIB NIH HHS R01 EB027577NIGMS NIH HHS P20 GM103446NIGMS NIH HHS P20 GM103653NIGMS NIH HHS P20 GM113125
6 · The paper itself

Abstract

Age-related memory impairments have been linked to differences in structural brain parameters, including the integrity of the hippocampus (HC) and its distinct hippocampal subfields (HCsf). Imaging methods sensitive to the underlying tissue microstructure are valuable in characterizing age-related HCsf structural changes that may relate to cognitive function. Magnetic resonance elastography (MRE) is a noninvasive MRI technique that can quantify tissue viscoelasticity and may provide additional information about aging effects on HCsf health. Here, we report a high-resolution MRE protocol to quantify HCsf viscoelasticity through shear stiffness, μ, and damping ratio, ξ, which reflect the integrity of tissue composition and organization. HCsf exhibit distinct mechanical properties-the subiculum had the lowest μ and both subiculum and entorhinal cortex had the lowest ξ. Both measures correlated with age: HCsf μ was lower with age (P < 0.001) whereas ξ was higher (P = 0.002). The magnitude of age-related differences in ξ varied across HCsf (P = 0.011), suggesting differential patterns of brain aging. This study demonstrates the feasibility of using MRE to assess HCsf microstructural integrity and suggests incorporation of these metrics to evaluate HC health in neurocognitive disorders.

Indexed as

AdultAgedAged, 80 and overAgingElasticity Imaging TechniquesFemaleHippocampusHumansMagnetic Resonance ImagingMaleMiddle AgedViscosityYoung Adultaginghippocampusmagnetic resonance elastographystiffnessviscoelasticity

Identifiers

PMID33454745
PMCPMC8107787
OpenAlexW3124322109

What OpenQuestion holds

Textmetadata
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.