Evidence map›Paper›PMID 32986668›Full record

ArticleJournal of Alzheimer's disease : JAD2020

Single Nucleotide Polymorphisms in Alzheimer's Disease Risk Genes Are Associated with Intrinsic Connectivity in Middle Age.

Jenna Katherine Blujus, Laura Elizabeth Korthauer, Elizabeth Awe, Marijam Frahmand, Ira Driscoll

Open access · greenAbstract read
In one paragraph

Article in Journal of Alzheimer's disease : JAD, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.2field-weighted citation impact, top 49% 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

3 citing papers in PubMed, 4 citations in OpenAlex.

  1. Review
  2. Article
  3. 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

5 authors at 2 institutions in 1 country.

Jenna Katherine BlujusDepartment of Psychology, University of Wisconsin-Milwaukee, Milwaukee, WI, USA.
Laura Elizabeth KorthauerDepartment of Psychology, University of Wisconsin-Milwaukee, Milwaukee, WI, USA.
Elizabeth AweDepartment of Psychology, University of Wisconsin-Milwaukee, Milwaukee, WI, USA.
Marijam FrahmandDepartment of Psychology, University of Wisconsin-Milwaukee, Milwaukee, WI, USA.
Ira DriscollDepartment of Psychology, University of Wisconsin-Milwaukee, Milwaukee, WI, USA.
University of Wisconsin–Milwaukee · USBrown University · US

Funding

The aging brain: Imaging genetics of brain structure and functionR00AG032361 · NIA · UNIVERSITY OF WISCONSIN MILWAUKEE · PI FRAHMAND, IRA · 2011 to 2013
$719k
NIA NIH HHS R00 AG032361
6 · The paper itself

Abstract

backgroundIt is critical to identify individuals at risk for Alzheimer's disease (AD) earlier in the disease time course, such as middle age and preferably well prior to the onset of clinical symptoms, when intervention efforts may be more successful. Genome-wide association and candidate gene studies have identified single nucleotide polymorphisms (SNPs) in APOE, CLU, CR1, PICALM, and SORL1 that confer increased risk of AD.

objectiveIn the current study, we investigated the associations between SNPs in these genes and resting-state functional connectivity within the default mode network (DMN), frontoparietal network (FPN), and executive control network (ECN) in healthy, non-demented middle-aged adults (age 40 -60; N = 123; 74 females).

methodsResting state networks of interest were identified through independent components analysis using a template-matching procedure and individual spatial maps and time courses were extracted using dual regression.

resultsWithin the posterior DMN, functional connectivity was associated with CR1 rs1408077 and CLU rs9331888 polymorphisms (p's < 0.05). FPN connectivity was associated with CR1 rs1408077, CLU rs1136000, SORL1 rs641120, and SORL1 rs689021 (p's < 0.05). Functional connectivity within the ECN was associated with the CLU rs11136000 (p < 0.05). There were no APOE- or PICALM-related differences in any of the networks investigated (p's > 0.05).

conclusionThis is the first demonstration of the relationship between intrinsic network connectivity and AD risk alleles in CLU, CR1, and SORL1 in healthy, middle-aged adults. These SNPs should be considered in future investigations aimed at identifying potential preclinical biomarkers for AD.

Indexed as

AdultAllelesAlzheimer DiseaseApolipoproteins EClusterinExecutive FunctionFemaleGenetic Predisposition to DiseaseGenome-Wide Association StudyHumansLDL-Receptor Related ProteinsMagnetic Resonance ImagingMaleMembrane Transport ProteinsMiddle AgedMonomeric Clathrin Assembly ProteinsApolipoproteins ECLU protein, humanClusterinCR1 protein, humanLDL-Receptor Related ProteinsMembrane Transport ProteinsMonomeric Clathrin Assembly ProteinsPICALM protein, humanReceptors, Complement 3bSORL1 protein, humanAgingAlzheimer’s diseasemiddle agedneuroimagingsingle nucleotide polymorphism

Identifiers

PMID32986668
PMCPMC11694215
OpenAlexW3087763661

What OpenQuestion holds

Textmetadata
LicenceTDM
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.