Evidence map›Paper›PMID 40247624›Full record

ArticleJournal of the American Heart Association2025

Association of A1AT With Poor Functional Outcome in Patients With Acute Ischemic Stroke.

Paula García-Rodríguez, Marcel Lamana-Vallverdú, Daisy R Guamán-Pilco, Anna Penalba, Laura Ramiro, Alba Simats, Júlia Faura, Alejandro Bustamante, Noelia Díaz-Troyano, Joan Montaner

Abstract read
In one paragraph

Article in Journal of the American Heart Association, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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

1 citing paper in PubMed.

  1. 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

10 authors.

Paula García-RodríguezNeurovascular Research Laboratory, Vall d'Hebron Institute of Research (VHIR) Universitat Autònoma de Barcelona Barcelona Spain.ORCID 0000-0001-6596-8002
Marcel Lamana-VallverdúNeurovascular Research Laboratory, Vall d'Hebron Institute of Research (VHIR) Universitat Autònoma de Barcelona Barcelona Spain.ORCID 0009-0000-2874-6523
Daisy R Guamán-PilcoNeurovascular Research Laboratory, Vall d'Hebron Institute of Research (VHIR) Universitat Autònoma de Barcelona Barcelona Spain.ORCID 0000-0002-9212-0872
Anna PenalbaNeurovascular Research Laboratory, Vall d'Hebron Institute of Research (VHIR) Universitat Autònoma de Barcelona Barcelona Spain.
Laura RamiroNeurovascular Research Laboratory, Vall d'Hebron Institute of Research (VHIR) Universitat Autònoma de Barcelona Barcelona Spain.ORCID 0000-0002-4121-4609
Alba SimatsCerebrovascular Research Laboratory, Instituto de Investigaciones Biomédicas de Barcelona (IIBB) Consejo Superior de Investigaciones Científicas (CSIC) Barcelona Spain.ORCID 0000-0002-0415-1135
Júlia FauraNeurovascular Research Laboratory, Vall d'Hebron Institute of Research (VHIR) Universitat Autònoma de Barcelona Barcelona Spain.
Alejandro BustamanteNeurovascular Research Laboratory, Vall d'Hebron Institute of Research (VHIR) Universitat Autònoma de Barcelona Barcelona Spain.ORCID 0000-0003-4390-8900
Noelia Díaz-TroyanoDepartment of Biochemistry Vall d'Hebron University Hospital Barcelona Spain.ORCID 0000-0002-9392-0142
Joan MontanerNeurovascular Research Laboratory, Vall d'Hebron Institute of Research (VHIR) Universitat Autònoma de Barcelona Barcelona Spain.ORCID 0000-0003-4845-2279

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThis study aimed to investigate whether A1AT (α-1 antitrypsin) bloodstream levels, measured acutely after ischemic stroke, can predict the outcome of patients with stroke. METHODS AND

resultsTwo cohorts of patients with stroke were studied independently and retrospectively: a pilot cohort of 59 patients and a larger replicative study with 527 patients. Blood samples were drawn at hospital admission (<6 hours after stroke onset) before any treatment was given. A1AT levels were analyzed. Patients were followed after the event, and functional outcomes were evaluated at in-hospital (discharge) and midterm (third month) follow-up according to the modified Rankin Scale (considering modified Rankin Scale score >2 a poor outcome). Association studies between A1AT levels and functional outcomes were conducted. We also evaluated the added value of A1AT as a prognostic biomarker over the clinical model (sex, age, premorbid modified Rankin Scale and National Institutes of Health Stroke Scale scores) with the likelihood ratio test. In both studies, the levels of A1AT were higher in patients who had worse outcomes, were older, and had higher National Institutes of Health Stroke Scale scores at admission. In the pilot study, higher levels of A1AT were also associated with death at discharge and at 3 months after stroke (

conclusionsBased on our data, we cannot claim that A1AT is an independent biomarker of ischemic stroke. Nevertheless, A1AT is potentially involved in stroke outcomes and might be explored as a potential therapeutic target.

Indexed as

Ischemic StrokeAgedAged, 80 and overBiomarkersFemaleFunctional StatusHumansMaleMiddle AgedPilot ProjectsPredictive Value of TestsPrognosisRecovery of FunctionRetrospective StudiesRisk FactorsTime FactorsBiomarkersA1ATbiomarkeroutcomestroke

Identifiers

PMID40247624
PMCPMC12184608

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Registered trials

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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.