Evidence map›Paper›PMID 30040714›Full record

ArticleJournal of Alzheimer's disease : JAD2018

A Three-Factor Structure of Cognitive Functioning Among Unimpaired Carriers and Non-Carriers of Autosomal-Dominant Alzheimer's Disease.

Edmarie Guzmán-Vélez, Sehily Jaimes, Daniel C Aguirre-Acevedo, Daniel J Norton, Kathryn V Papp, Rebecca Amariglio, Dorene Rentz, Ana Baena, Eliana Henao, Victoria Tirado and 5 more

Abstract read
In one paragraph

Article in Journal of Alzheimer's disease : JAD, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.1field-weighted citation impact, top 22% 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

11 citing papers in PubMed, 17 citations in OpenAlex.

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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

15 authors at 4 institutions in 2 countries.

Edmarie Guzmán-VélezDepartment of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
Sehily JaimesDepartment of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
Daniel C Aguirre-AcevedoGrupo Académico de Epidemiología Clínica, School of Medicine, University of Antioquia, Medellín, Colombia.
Daniel J NortonDepartment of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
Kathryn V PappDepartment of Neurology, Center for Alzheimer Research and Treatment, Brigham and Women's Hospital, Boston, MA, USA.
Rebecca AmariglioDepartment of Neurology, Center for Alzheimer Research and Treatment, Brigham and Women's Hospital, Boston, MA, USA.
Dorene RentzDepartment of Neurology, Center for Alzheimer Research and Treatment, Brigham and Women's Hospital, Boston, MA, USA.
Ana BaenaGrupo de Neurociencias de Antioquia, School of Medicine, University of Antioquia, Medellín, Colombia.
Eliana HenaoGrupo de Neurociencias de Antioquia, School of Medicine, University of Antioquia, Medellín, Colombia.
Victoria TiradoGrupo de Neurociencias de Antioquia, School of Medicine, University of Antioquia, Medellín, Colombia.
Claudia MuñozGrupo de Neurociencias de Antioquia, School of Medicine, University of Antioquia, Medellín, Colombia.
Margarita GiraldoGrupo de Neurociencias de Antioquia, School of Medicine, University of Antioquia, Medellín, Colombia.
Reisa A SperlingDepartment of Neurology, Center for Alzheimer Research and Treatment, Brigham and Women's Hospital, Boston, MA, USA.
Francisco LoperaGrupo de Neurociencias de Antioquia, School of Medicine, University of Antioquia, Medellín, Colombia.
Yakeel T QuirozDepartment of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
Universidad de Antioquia · COMassachusetts General Hospital · USHarvard University · USBrigham and Women's Hospital · US

Funding

Memory network dysfunction as an early marker of preclinical Alzheimer's DiseaseDP5OD019833 · OD · MASSACHUSETTS GENERAL HOSPITAL · PI QUIROZ, YAKEEL T. · 2014 to 2018
$2.3M
NIH HHS DP5 OD019833
6 · The paper itself

Abstract

backgroundThere is a need to find cognitive markers that can help identify individuals at risk for Alzheimer's disease (AD), and that can be used to reliably measure cognitive decline.

objectiveWe tested whether a theoretically driven three-factor structure would characterize cognitive functioning in individuals who are genetically-determined to develop AD due to a mutation in Presenilin-1 (PSEN1) gene. We also examined whether these factors could distinguish cognitively unimpaired PSEN1 mutation carriers from age-matched non-carrier family members.

methods1,395 cognitively unimpaired members of a Colombian kindred with the PSEN1 E280A mutation were included in the study. A confirmatory factor analysis examined the fit of the three-factor model comprising episodic memory (MMSE memory recall, CERAD-COL Word list recall, and Constructional praxis recall), executive function (Phonemic fluency and WCST perseverative errors), and psychomotor processing speed (TMT-A and WAIS-III Digit Symbol).

resultsThe three-factor model provided an excellent fit for all participants (p = 0.24; RMSEA = 0.01). Further, the episodic memory (p = 0.0004, d = 0.25) and executive functioning (p = 0.001, d = 0.18) factors distinguished cognitively unimpaired carriers from non-carriers. The episodic memory factor provided the earliest indication of preclinical cognitive decline at 35 years of age, nine years before individuals' estimated age of clinical onset.

conclusionsThe three theoretically derived cognitive factors provide a reliable measure of cognition and may be useful for the early detection of AD, as well as for measuring disease progression. However, longitudinal studies are needed to confirm that these factors can be used to track the progression of cognitive decline in preclinical AD.

Indexed as

AdolescentAdultAlzheimer DiseaseCognitive DysfunctionColombiaExecutive FunctionFactor Analysis, StatisticalFemaleHumansMaleMemory, EpisodicMutationNeuropsychological TestsPresenilin-1Psychomotor PerformanceYoung AdultPresenilin-1cognitive factorsConfirmatory factor analysiscontstartabstractepisodic memoryexecutive functionpreclinical Alzheimer’s diseaseprocessing speed

Identifiers

PMID30040714
PMCPMC6942670
OpenAlexW2883805651

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.