Evidence mapPaperPMID 42420815Full record

ArticleAnnals of clinical and translational neurology2026

Blood RNA Biomarker Signatures for Early Diagnosis and Prognosis in Ischemic and Hemorrhagic Stroke: The IBIS-CT1 Study.

Salomé Retailleau, Marie Bruguet, Irina Viakhireva-Dovganyuk, François-Mathias Merrien, Denis Marechal, Aurore Jourdain, Philippe Goas, Jordan Coris, Julien Asselineau, Maëlys Consigny and 2 more

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Article in Annals of clinical and translational neurology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

12 authors.

Salomé RetailleauUniv Brest, Inserm, EFS, UMR 1078, GGB, Brest, France.
Marie BruguetNeurology and Stroke Unit Department, CHRU de Brest, Brest, France.
Irina Viakhireva-DovganyukNeurology and Stroke Unit Department, CHRU de Brest, Brest, France.
François-Mathias MerrienNeurology and Stroke Unit Department, CHRU de Brest, Brest, France.
Denis MarechalNeurology and Stroke Unit Department, CHRU de Brest, Brest, France.
Aurore JourdainNeurology and Stroke Unit Department, CHRU de Brest, Brest, France.
Philippe GoasNeurology and Stroke Unit Department, CHRU de Brest, Brest, France.
Jordan CorisNeurology and Stroke Unit Department, CHRU de Brest, Brest, France.
Julien AsselineauClinical Research and Innovation Department, CHRU Brest, Brest, France.
Maëlys ConsignyClinical Research and Innovation Department, CHRU Brest, Brest, France.
Gérald Le GacUniv Brest, Inserm, EFS, UMR 1078, GGB, Brest, France.
Serge TimsitUniv Brest, Inserm, EFS, UMR 1078, GGB, Brest, France.ORCID https://orcid.org/0000-0003-0346-8576

Funding

Société d'Accélération du Transfert de Technologies 2019_00663_DV_3582
6 · The paper itself

Abstract

objectiveTo evaluate the expression of nine blood RNA biomarkers in a clinical trial based on genes previously identified in an experimental monkey model of stroke for diagnosis feasibility and prognostication.

methodsIBIS-CT1 was a prospective longitudinal study enrolling patients with ischemic stroke (IS) or intracerebral hemorrhage (ICH) within 6 h of onset, compared with healthy controls (HC). Blood samples were collected at < 6 h (early), 12 h, 24 h, 48 h, 7 days, and 3 months. Target RNAs were quantified using reverse-transcription PCR or digital droplet PCR. Clinical severity and disability were assessed by NIHSS at admission and the modified Rankin Scale (mRS) at 3 months.

resultsTwenty HC, 20 IS, and 20 ICH patients were included. Compared with HC, IS patients showed significant early upregulation of genes ADM, DUSP1, HMOX1, HSPA1B, LDLR, and PTGS2 (all p ≤ 0.0002) and downregulation of BAG3 (p < 0.0001). Similar patterns were observed in ICH, with higher expression levels than in IS. In IS, higher NIHSS scores correlated with early upregulation of ADM, DUSP1, HMOX1, PTGS2, and GOS2, while lower BAG3 expression associated with poorer 3-month outcomes. Combined gene expression discriminated stroke from controls with an AUC of 0.914 (95% CI, 0.84-0.98).

interpretationDistinct blood gene-expression signatures differentiate stroke from controls and predict functional outcome, supporting their potential as diagnostic and prognostic biomarkers.

Indexed as

biomarkershemorrhagicischemicpoint‐of‐carestroketranscriptomic

Identifiers

PMID42420815
PMCPMC13394127

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