Evidence map›Paper›PMID 33008436›Full record

ArticleAlzheimer's research & therapy2020

Association of lysophosphatidic acids with cerebrospinal fluid biomarkers and progression to Alzheimer's disease.

Shahzad Ahmad, Adelina Orellana, Isabelle Kohler, Lutz Frölich, Itziar de Rojas, Silvia Gil, Mercè Boada, Isabel Hernández, Lucrezia Hausner, Margot H M Bakker and 6 more

Open access · goldAbstract read
In one paragraph

Article in Alzheimer's research & therapy, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.0field-weighted citation impact, top 25% 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

15 citing papers in PubMed, 25 citations in OpenAlex.

  1. Increased Amyloidogenic Neuronal Injury in HIV-1-infected APP-KI Alzheimer's disease mice.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
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  9. Role of cGAS-Sting Signaling in Alzheimer's Disease.International journal of molecular sciences · 2023
    Review
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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

16 authors at 9 institutions in 5 countries.

Shahzad AhmadDepartment of Epidemiology, Erasmus Medical Centre, Rotterdam, The Netherlands. s.ahmad@erasmusmc.nl.ORCID 0000-0002-8658-3790
Adelina OrellanaResearch Center and Memory Clinic Fundació ACE, Institut Català de Neurociències, Aplicades. Universitat Internacional de Catalunya, Barcelona, Spain.
Isabelle KohlerDivision of Systems Biomedicine and Pharmacology, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands.
Lutz FrölichDepartment of Geriatric Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, 68159, Mannheim, Germany.
Itziar de RojasResearch Center and Memory Clinic Fundació ACE, Institut Català de Neurociències, Aplicades. Universitat Internacional de Catalunya, Barcelona, Spain.
Silvia GilResearch Center and Memory Clinic Fundació ACE, Institut Català de Neurociències, Aplicades. Universitat Internacional de Catalunya, Barcelona, Spain.
Mercè BoadaResearch Center and Memory Clinic Fundació ACE, Institut Català de Neurociències, Aplicades. Universitat Internacional de Catalunya, Barcelona, Spain.
Isabel HernándezResearch Center and Memory Clinic Fundació ACE, Institut Català de Neurociències, Aplicades. Universitat Internacional de Catalunya, Barcelona, Spain.
Lucrezia HausnerDepartment of Geriatric Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, 68159, Mannheim, Germany.
Margot H M BakkerDiscovery Research, AbbVie Deutschland GmbH & Co. KG, Knollstrasse, 67061, Ludwigshafen, Germany.
Alfredo Cabrera-SocorroJanssen Pharmaceutical NV, Turnhoutseweg 30, 2340, Beerse, Belgium.
Najaf AminDepartment of Epidemiology, Erasmus Medical Centre, Rotterdam, The Netherlands.
Alfredo RamírezDepartment for Neurodegenerative Diseases and Geriatric Psychiatry, University of Bonn, Bonn, Germany.
Agustín RuizResearch Center and Memory Clinic Fundació ACE, Institut Català de Neurociències, Aplicades. Universitat Internacional de Catalunya, Barcelona, Spain.
Thomas HankemeierDepartment of Epidemiology, Erasmus Medical Centre, Rotterdam, The Netherlands. hankemeier@lacdr.leidenuniv.nl.
Cornelia M Van DuijnDepartment of Epidemiology, Erasmus Medical Centre, Rotterdam, The Netherlands. Cornelia.vanDuijn@ndph.ox.ac.uk.
Instituto de Salud Carlos III · ESHeidelberg University · DELeiden University · NLAbbVie (Germany) · DEErasmus MC · NLErasmus University Rotterdam · NLJanssen (Belgium) · BEUniversity of Bonn · DEUniversity of Oxford · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLysophosphatidic acids (LPAs) are bioactive signaling phospholipids that have been implicated in Alzheimer's disease (AD). It is largely unknown whether LPAs are associated with AD pathology and progression from mild cognitive impairment (MCI) to AD.

methodsThe current study was performed on cerebrospinal fluid (CSF) and plasma samples of 182 MCI patients from two independent cohorts. We profiled LPA-derived metabolites using liquid chromatography-mass spectrometry. We evaluated the association of LPAs with CSF biomarkers of AD, Aβ-42, p-tau, and total tau levels overall and stratified by APOE genotype and with MCI to AD progression.

resultsFive LPAs (C16:0, C16:1, C22:4, C22:6, and isomer-LPA C22:5) showed significant positive association with CSF biomarkers of AD, Aβ-42, p-tau, and total tau, while LPA C14:0 and C20:1 associated only with Aβ-42 and alkyl-LPA C18:1, and LPA C20:1 associated with tau pathology biomarkers. Association of cyclic-LPA C16:0 and two LPAs (C20:4, C22:4) with Aβ-42 levels was found only in APOE ε4 carriers. Furthermore, LPA C16:0 and C16:1 also showed association with MCI to AD dementia progression, but results did not replicate in an independent cohort.

conclusionsOur findings provide evidence that LPAs may contribute to early AD pathogenesis. Future studies are needed to determine whether LPAs play a role in upstream of AD pathology or are downstream markers of neurodegeneration.

Indexed as

Alzheimer DiseaseCognitive DysfunctionAmyloid beta-PeptidesBiomarkersCohort StudiesDisease ProgressionHumansLysophospholipidsPeptide Fragmentstau ProteinsAmyloid beta-PeptidesBiomarkersLysophospholipidsPeptide Fragmentstau ProteinsAlzheimer’s diseaseCSF biomarkersLysophosphatidic acidsMCIPro-inflammatory phospholipidsSignaling lipids

Identifiers

PMID33008436
PMCPMC7532619
OpenAlexW3091584120

What OpenQuestion holds

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LicenceCC BY
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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.