Evidence mapPaperPMID 40295361Full record

Observational studyMolecular neurobiology2025

Biomarkers in Aneurysmatic and Spontaneous Subarachnoid Haemorrhage: A Clinical Prospective Multicentre Biomarker Panel Study of S100B, Claudin-5, Interleukin-10, TREM-1, TREM-2 and Neurofilament Light Chain As Well As Immunoglobulin G and M.

Thomas Kapapa, Andreas Pfnür, Rebecca Halbgebauer, Patrik Broer, Steffen Halbgebauer, Hayrettin Tumani, Ann-Kathrin Friedrichs, Markus Huber-Lang, Lena Dörfer

Abstract readMulticenter StudyObservational Study
In one paragraph

Observational study in Molecular neurobiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Observational
  2. 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

9 authors.

Thomas Kapapa *Department of Neurosurgery, University Hospital Ulm, Albert-Einstein-Allee 23, Ulm, 89081, Germany. Thomas.Kapapa@uniklinik-ulm.de.
Andreas Pfnür *Department of Neurosurgery, University Hospital Ulm, Albert-Einstein-Allee 23, Ulm, 89081, Germany.
Rebecca HalbgebauerInstitute of Clinical and Experimental Trauma Immunology, University Hospital Ulm, Helmholtzstraße 8/1, Ulm, 89081, Germany.
Patrik BroerDepartment of Intensive Care Medicine, Hospital Winterthur, Brauerstrasse 15, Winterthur, 8401, Austria.
Steffen HalbgebauerDepartment of Neurology, University Hospital Ulm, Oberer Eselsberg 45, Ulm, 89081, Germany.
Hayrettin TumaniDepartment of Neurology, University Hospital Ulm, Oberer Eselsberg 45, Ulm, 89081, Germany.
Ann-Kathrin FriedrichsInstitute of Clinical and Experimental Trauma Immunology, University Hospital Ulm, Helmholtzstraße 8/1, Ulm, 89081, Germany.
Markus Huber-LangInstitute of Clinical and Experimental Trauma Immunology, University Hospital Ulm, Helmholtzstraße 8/1, Ulm, 89081, Germany.
Lena DörferInstitute of Clinical and Experimental Trauma Immunology, University Hospital Ulm, Helmholtzstraße 8/1, Ulm, 89081, Germany.

Funding

Deutsche Forschungsgemeinschaft (DFG) as part of the Collaborative Research Center 1149 "Danger Response, Disturbance Factors and Regenerative Potential after Acute Trauma" 251293561
6 · The paper itself

Abstract

Following aneurysmatic subarachnoid haemorrhage (SAH), complex pathophysiological processes take place which result in ischaemia, dysfunction of the blood-brain barrier and the clinical development of vasospasms and delayed cerebral ischaemia (DCI). The aim of this study was to present a biomarker panel that can be used for temporal assignment in the pathophysiological process after haemorrhage, a prediction of vasospasm, DCI or outcome. In a prospective multicentre approach, complex laboratory chemistry tests were used to determine the value of the biomarkers S100B, Claudin-5, Interleukin (IL) -10, Triggering receptor expresses on myeloid cells (TREM)-1 and TREM-2, and neurofilament light chain (NfL) as well as IgG and IgM in plasma and Cerebro-spinal-fluid (CSF) in SAH patients. The predictive power of mentioned biomarkers with regard to the occurrence of vasospasms, DCI and the outcome (Glasgow Outcome Scale) were defined by using sophisticated statistical methods with the level of significance at p ≤ 0.05. Mean age of the 12 patients included was 56 (SD:14) years with 67% female patients and that of the 11 control subjects was 74 (SD:3) years with 55% female subjects. S100B showed higher concentrations compared to the control patients on the first four days (p ≤ 0.0141). For IL-10, the CSF concentrations showed a continuous increase: day 2 (p = 0.0074), day 4 (p = 0.0012), and day 5 (p < 0.0001). Regarding the TREM1 and TREM2 balance, CSF concentrations of TREM1 increased until day eight (p ≤ 0.0055). TREM-2 plasma concentrations decreased below the levels of control patients and appeared unchanged for the further course. The greatest difference in the CSF concentration of NfL between the patients and the control group was seen on day 8 (p = 0.0104). The differentiation between patients with and without DCI showed different concentration curves of the TREM1 CSF-plasma index with increasing concentrations for patients with DCI. The TREM 2 CSF-plasma index showed higher concentrations for patients with DCI. Patients without DCI showed a decreasing concentration of the NfL CSF-plasma index compared to an increase when vasospasm was detected. NfL, TREM-1 and TREM-2 have the potential to be relevant biomarkers for SAH in the intermediate and delayed injury phase.

Indexed as

Neurofilament ProteinsS100 Calcium Binding Protein beta SubunitSubarachnoid HemorrhageAdultAgedBiomarkersFemaleHumansImmunoglobulin GInterleukin-10MaleMembrane GlycoproteinsMiddle AgedProspective StudiesReceptors, ImmunologicTriggering Receptor Expressed on Myeloid Cells-1BiomarkersImmunoglobulin GInterleukin-10Membrane Glycoproteinsneurofilament protein LNeurofilament ProteinsReceptors, ImmunologicS100B protein, humanS100 Calcium Binding Protein beta SubunitTREM1 protein, humanTREM2 protein, humanTriggering Receptor Expressed on Myeloid Cells-1Delayed cerebral ischemiaPrognosisSecondary brain injuryVasospasm

Identifiers

PMID40295361
PMCPMC12367908

What Socratic holds

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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 Socratic graph.