Evidence map›Paper›PMID 30569084›Full record

ArticleThe journal of prevention of Alzheimer's disease2019

Plasma Aβ42/40 Ratio Detects Early Stages of Alzheimer's Disease and Correlates with CSF and Neuroimaging Biomarkers in the AB255 Study.

V Pérez-Grijalba, J Romero, P Pesini, L Sarasa, I Monleón, I San-José, J Arbizu, P Martínez-Lage, J Munuera, A Ruiz and 3 more

Open access · diamondAbstract readMulticenter Study
In one paragraph

Article in The journal of prevention of Alzheimer's disease, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 89 papers.

0numbers the graph read from it
0cells of the map it votes in
89citing papers in PubMed
4.9field-weighted citation impact, top 4% 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

89 citing papers in PubMed, 118 citations in OpenAlex.

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  3. Combined Effects ofInternational journal of molecular sciences · 2026
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  7. Evidence of APOE4-related brain vulnerabilities in verbal memory systems in midlife women.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
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  13. Preliminary Investigation of the Association Between Epigenetic Aging Acceleration and Amyloid Biomarkers in Bipolar Disorder.The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry · 2026
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29 more citing papers are in PubMed but not listed here.

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

13 authors at 5 institutions in 1 country.

V Pérez-GrijalbaPedro Pesini, PhD. Vía Hispanidad 21, 50009 Zaragoza, Spain; Telephone number: +34 976 796 562; Fax: (+34) 976 217 802; Email: ppesini@araclon.com.
J Romero
P Pesini
L Sarasa
I Monleón
I San-José
J Arbizu
P Martínez-Lage
J Munuera
A Ruiz
L Tárraga
M Boada
M Sarasa
Fundació ACE · ESClinica Universidad de Navarra · ESFundacion CITA Alzheimer · ESHospital Sant Joan de Déu Barcelona · ESUniversidad de Zaragoza · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEasily accessible biomarkers are needed for the early identification of individuals at risk of developing Alzheimer's disease (AD) in large population screening strategies.

objectivesThis study evaluated the potential of plasma β-amyloid (Aβ) biomarkers in identifying early stages of AD and predicting cognitive decline over the following two years.

designTotal plasma Aβ42/40 ratio (TP42/40) was determined in 83 cognitively normal individuals (CN) and 145 subjects with amnestic mild cognitive impairment (a-MCI) stratified by an FDG-PET AD-risk pattern.

resultsSignificant lower TP42/40 ratio was found in a-MCI patients compared to CN. Moreover, a-MCIs with a high-risk FDG-PET pattern for AD showed even lower plasma ratio levels. Low TP42/40 at baseline increased the risk of progression to dementia by 70%. Furthermore, TP42/40 was inversely associated with neocortical amyloid deposition (measured with PiB-PET) and was concordant with the AD biomarker profile in cerebrospinal fluid (CSF).

conclusionsTP42/40 demonstrated value in the identification of individuals suffering a-MCI, in the prediction of progression to dementia, and in the detection of underlying AD pathology revealed by FDG-PET, Amyloid-PET and CSF biomarkers, being, thus, consistently associated with all the well-established indicators of AD.

Indexed as

Early DiagnosisAgedAged, 80 and overAlzheimer DiseaseAmyloid beta-PeptidesAniline CompoundsApolipoproteins EBiomarkersCase-Control StudiesCognitive DysfunctionCross-Sectional StudiesFemaleFluorodeoxyglucose F18GenotypeHumansMale2-(4'-(methylamino)phenyl)-6-hydroxybenzothiazoleAmyloid beta-Peptidesamyloid beta-protein (1-40)amyloid beta-protein (1-42)Aniline CompoundsApolipoproteins EBiomarkersFluorodeoxyglucose F18Peptide Fragmentstau ProteinsThiazolesAlzheimer’s diseaseAβ ratiobiomarkerplasmaβ-amyloid (Aβ)

Identifiers

PMID30569084
PMCPMC12280714
OpenAlexW2901825772

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.