Evidence map›Paper›PMID 42711449›Full record

ArticleJournal of neurology2026

Blood biomarkers of brain damage in Transient Ischemic Attack: the role of plasma NfL and GFAP.

Francesco Berinato, Andrea Morotti, Giovanni Baronchelli, Chiara Tolassi, Irene Girotto, Andrea Pilotto, Alessandro Padovani

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Article in Journal of 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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1 · What the graph read from it

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4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Francesco BerinatoDepartment of Clinical and Experimental Sciences, Neurology Unit, University of Brescia, Brescia, Italy. f.berinato@unibs.it.ORCID http://orcid.org/0009-0001-4734-8640
Andrea MorottiDepartment of Clinical and Experimental Sciences, Neurology Unit, University of Brescia, Brescia, Italy.
Giovanni BaronchelliDepartment of Clinical and Experimental Sciences, Neurology Unit, University of Brescia, Brescia, Italy.
Chiara TolassiNeurobiorepository and Laboratory of Advanced Biological Markers, University of Brescia and ASST Spedali Civili Hospital, Brescia, Italy.
Irene GirottoNeurobiorepository and Laboratory of Advanced Biological Markers, University of Brescia and ASST Spedali Civili Hospital, Brescia, Italy.
Andrea PilottoDepartment of Clinical and Experimental Sciences, Neurology Unit, University of Brescia, Brescia, Italy.
Alessandro PadovaniDepartment of Clinical and Experimental Sciences, Neurology Unit, University of Brescia, Brescia, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTransient Ischemic Attack (TIA) may induce subtle tissue damage that remains undetectable on conventional magnetic resonance imaging (MRI), which has led to growing interest in blood biomarkers of neuronal and glial injury. This study examined whether plasma neurofilament light chain (NfL) and glial fibrillary acidic protein (GFAP) can distinguish patients with clinically defined, MRI-negative TIA from healthy individuals.

methodsSingle-center retrospective study that included clinical TIA patients with negative MRI. Age- and sex-matched healthy controls were selected. A blood sample was collected within 24 h from admission, and plasma NfL and GFAP were measured using Simoa technology. We performed group comparisons, ROC analyses with identification of optimal thresholds, and evaluation of combined diagnostic assessment. Sensitivity analyses excluding patients with pre-existing disability, previous stroke/TIA, impaired renal function, high MRI small vessel disease burden and moderate-severe cerebral cortical atrophy were performed.

results36 TIA patients and 72 controls were analyzed. TIA patients showed higher NfL (27.22 vs 10.44 pg/mL, p<0.001) and GFAP (301.99 vs 131.65 pg/mL, p<0.001) levels. Optimal thresholds were 16.83 pg/mL for NfL (sensitivity 52.8%, specificity 98.6%) and 179.23 pg/mL for GFAP (sensitivity 69.4%, specificity 81.9%). Combined assessment increased sensitivity to 80.6% while maintaining specificity at 81.9% with the highest discriminative accuracy (AUC 0.812). The significantly higher level of NfL and GFAP in TIA patients was confirmed in sensitivity analyses. DISCUSSION: NfL and GFAP are elevated in MRI-negative TIA, supporting the presence of transient microscopic brain injury. Larger studies are needed to confirm clinical utility.

Indexed as

Brain InjuriesGlial Fibrillary Acidic ProteinIschemic Attack, TransientNeurofilament ProteinsAgedBiomarkersFemaleHumansMagnetic Resonance ImagingMaleMiddle AgedRetrospective StudiesROC CurveSensitivity and SpecificityBiomarkersGFAP protein, humanGlial Fibrillary Acidic Proteinneurofilament protein LNeurofilament ProteinsBiomarkersGFAPNfLTIATransient ischemic attack

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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.