Evidence map›Paper›PMID 28359293›Full record

ArticleAlzheimer's research & therapy2017

Memory performance-related dynamic brain connectivity indicates pathological burden and genetic risk for Alzheimer's disease.

Frances C Quevenco, Maria G Preti, Jiri M G van Bergen, Jun Hua, Michael Wyss, Xu Li, Simon J Schreiner, Stefanie C Steininger, Rafael Meyer, Irene B Meier and 10 more

Abstract read
In one paragraph

Article in Alzheimer's research & therapy, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

28 citing papers in PubMed, 1 synthesis or guideline pooled it.

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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

20 authors.

Frances C QuevencoInstitute for Regenerative Medicine (IREM), University of Zurich, Zurich, Switzerland.
Maria G PretiDepartment of Radiology and Medical Informatics, Université de Genève, Geneva, Switzerland.
Jiri M G van BergenInstitute for Regenerative Medicine (IREM), University of Zurich, Zurich, Switzerland.
Jun HuaDepartment of Radiology, Johns Hopkins School of Medicine and F.M. Kirby Center for Functional Brain Imaging at Kennedy Krieger Institute, Baltimore, MD, USA.
Michael WyssInstitute for Biomedical Engineering, University of Zurich and ETH Zurich, Zurich, Switzerland.
Xu LiDepartment of Radiology, Johns Hopkins School of Medicine and F.M. Kirby Center for Functional Brain Imaging at Kennedy Krieger Institute, Baltimore, MD, USA.
Simon J SchreinerInstitute for Regenerative Medicine (IREM), University of Zurich, Zurich, Switzerland.
Stefanie C SteiningerHospital for Psychogeriatric Medicine, University of Zurich, Minervastr.145, CH-8032, Zurich, Switzerland.
Rafael MeyerInstitute for Regenerative Medicine (IREM), University of Zurich, Zurich, Switzerland.
Irene B MeierInstitute for Regenerative Medicine (IREM), University of Zurich, Zurich, Switzerland.
Adam M BrickmanTaub Institute for Research on Alzheimer's Disease and the Aging Brain, Department of Neurology, College of Physicians and Surgeons, Columbia University, New York, USA.
Sandra E LehInstitute for Regenerative Medicine (IREM), University of Zurich, Zurich, Switzerland.
Anton F GietlInstitute for Regenerative Medicine (IREM), University of Zurich, Zurich, Switzerland.
Alfred BuckDivision of Nuclear Medicine, University of Zurich, Zurich, Switzerland.
Roger M NitschInstitute for Regenerative Medicine (IREM), University of Zurich, Zurich, Switzerland.
Klaas P PruessmannInstitute for Biomedical Engineering, University of Zurich and ETH Zurich, Zurich, Switzerland.
Peter C M van ZijlDepartment of Radiology, Johns Hopkins School of Medicine and F.M. Kirby Center for Functional Brain Imaging at Kennedy Krieger Institute, Baltimore, MD, USA.
Christoph HockInstitute for Regenerative Medicine (IREM), University of Zurich, Zurich, Switzerland.
Dimitri Van De VilleDepartment of Radiology and Medical Informatics, Université de Genève, Geneva, Switzerland.
Paul G UnschuldInstitute for Regenerative Medicine (IREM), University of Zurich, Zurich, Switzerland. paul.unschuld@uzh.ch.

Funding

'T V ASSESSMENT - MEMORY DISORDERED PATIENTS'P50AG005146 · NIA · JOHNS HOPKINS UNIVERSITY · PI HUGANIR, RICHARD L · 1985 to 2019
$37.6M
TR&D 4: Algorithms for functional and anatomical brain analysisP41EB015909 · NIBIB · HUGO W. MOSER RES INST KENNEDY KRIEGER · PI VAN ZIJL, PETER CM · 2012 to 2020
$13.1M
NIA NIH HHS P50 AG005146NIBIB NIH HHS P41 EB015909
6 · The paper itself

Abstract

backgroundThe incidence of Alzheimer's disease (AD) strongly relates to advanced age and progressive deposition of cerebral amyloid-beta (Aβ), hyperphosphorylated tau, and iron. The purpose of this study was to investigate the relationship between cerebral dynamic functional connectivity and variability of long-term cognitive performance in healthy, elderly subjects, allowing for local pathology and genetic risk.

methodsThirty seven participants (mean (SD) age 74 (6.0) years, Mini-Mental State Examination 29.0 (1.2)) were dichotomized based on repeated neuropsychological test performance within 2 years. Cerebral Aβ was measured by

resultsA relationship between low episodic memory and a lower expression of anterior-posterior connectivity was seen (F(9,27) = 3.23, p < 0.008), moderated by ApoE-ε4 (F(9,27) = 2.22, p < 0.005). Inherent node-strength was related to local iron (F(5,30) = 13.2; p < 0.022).

conclusionOur data indicate that altered dynamic anterior-posterior brain connectivity is a characteristic of low memory performance in the subclinical range and genetic risk for AD in the elderly. As the observed altered brain network properties are associated with increased local iron, our findings may reflect secondary neuronal changes due to pathologic processes including oxidative stress.

Indexed as

Genetic Predisposition to DiseaseAgedAged, 80 and overAlzheimer DiseaseAniline CompoundsApolipoprotein E4BrainFemaleFollow-Up StudiesHeterozygoteHumansMagnetic Resonance ImagingMaleMemoryMental Status ScheduleMiddle Aged2-(4'-(methylamino)phenyl)-6-hydroxybenzothiazoleAniline CompoundsApolipoprotein E4RadiopharmaceuticalsThiazolesAlzheimer’s diseaseAmyloid betaDynamic functional connectivityEpisodic memoryIronOxidative stress

Identifiers

PMID28359293
PMCPMC5374623

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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.