Evidence map›Paper›PMID 34070533›Full record

ArticleBiomedicines2021

Serum Amyloid A1/Toll-Like Receptor-4 Axis, an Important Link between Inflammation and Outcome of TBI Patients.

Víctor Farré-Alins, Alejandra Palomino-Antolín, Paloma Narros-Fernández, Ana Belen Lopez-Rodriguez, Céline Decouty-Perez, Alicia Muñoz-Montero, Jorge Zamorano-Fernández, Beatriz Mansilla-Fernández, Javier Giner-García, Pablo García-Feijoo and 11 more

Open access · goldAbstract read
In one paragraph

Article in Biomedicines, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 24% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 12 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Editorial Board Members' Collection Series: "Neuroinflammation".International journal of molecular sciences · 2025
    Article
  4. Review
  5. Article
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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

21 authors at 4 institutions in 1 country.

Víctor Farré-AlinsMolecular Neuroinflammation and Neuronal Plasticity Research Laboratory, Research Unit, Hospital Universitario Santa Cristina, Instituto de Investigación Sanitaria-Hospital Universitario de la Princesa, 28009 Madrid, Spain.ORCID 0000-0002-6908-1705
Alejandra Palomino-AntolínMolecular Neuroinflammation and Neuronal Plasticity Research Laboratory, Research Unit, Hospital Universitario Santa Cristina, Instituto de Investigación Sanitaria-Hospital Universitario de la Princesa, 28009 Madrid, Spain.
Paloma Narros-FernándezMolecular Neuroinflammation and Neuronal Plasticity Research Laboratory, Research Unit, Hospital Universitario Santa Cristina, Instituto de Investigación Sanitaria-Hospital Universitario de la Princesa, 28009 Madrid, Spain.
Ana Belen Lopez-RodriguezMolecular Neuroinflammation and Neuronal Plasticity Research Laboratory, Research Unit, Hospital Universitario Santa Cristina, Instituto de Investigación Sanitaria-Hospital Universitario de la Princesa, 28009 Madrid, Spain.
Céline Decouty-PerezMolecular Neuroinflammation and Neuronal Plasticity Research Laboratory, Research Unit, Hospital Universitario Santa Cristina, Instituto de Investigación Sanitaria-Hospital Universitario de la Princesa, 28009 Madrid, Spain.
Alicia Muñoz-MonteroInstituto Teófilo Hernando, Departamento de Farmacología y Terapéutica, Facultad de Medicina, UAM, 28029 Madrid, Spain.
Jorge Zamorano-FernándezServicio de Neurocirugía, Hospital Universitario La Paz, 28046 Madrid, Spain.ORCID 0000-0001-5091-9689
Beatriz Mansilla-FernándezServicio de Neurocirugía, Hospital Universitario La Paz, 28046 Madrid, Spain.
Javier Giner-GarcíaServicio de Neurocirugía, Hospital Universitario La Paz, 28046 Madrid, Spain.
Pablo García-FeijooServicio de Neurocirugía, Hospital Universitario La Paz, 28046 Madrid, Spain.
Miguel Sáez-AlegreServicio de Neurocirugía, Hospital Universitario La Paz, 28046 Madrid, Spain.
Alexis J Palpán-FloresServicio de Neurocirugía, Hospital Universitario La Paz, 28046 Madrid, Spain.ORCID 0000-0003-2537-6955
José María Roda-FradeServicio de Neurocirugía, Hospital Universitario La Paz, 28046 Madrid, Spain.
Cristina S CarabiasServicio de Neurocirugía, Hospital Universitario 12 de Octubre, imas12, Universidad Complutense de Madrid, 28041 Madrid, Spain.
Juliana M RosaMolecular Neuroinflammation and Neuronal Plasticity Research Laboratory, Research Unit, Hospital Universitario Santa Cristina, Instituto de Investigación Sanitaria-Hospital Universitario de la Princesa, 28009 Madrid, Spain.ORCID 0000-0003-0857-3746
Belén Civantos-MartínServicio de Medicina Intensiva, Hospital Universitario La Paz, 28046 Madrid, Spain.
Santiago Yus-TeruelServicio de Medicina Intensiva, Hospital Universitario La Paz, 28046 Madrid, Spain.
Luis GandíaInstituto Teófilo Hernando, Departamento de Farmacología y Terapéutica, Facultad de Medicina, UAM, 28029 Madrid, Spain.ORCID 0000-0001-9597-8519
Alfonso LagaresServicio de Neurocirugía, Hospital Universitario 12 de Octubre, imas12, Universidad Complutense de Madrid, 28041 Madrid, Spain.ORCID 0000-0003-3996-0554
Borja J Hernández-GarcíaServicio de Neurocirugía, Hospital Universitario La Paz, 28046 Madrid, Spain.ORCID 0000-0002-0477-595X
Javier EgeaMolecular Neuroinflammation and Neuronal Plasticity Research Laboratory, Research Unit, Hospital Universitario Santa Cristina, Instituto de Investigación Sanitaria-Hospital Universitario de la Princesa, 28009 Madrid, Spain.ORCID 0000-0003-4704-3019
Hospital Universitario La Paz · ESHospital Universitario Santa Cristina · ESUniversidad Autónoma de Madrid · ESUniversidad Complutense de Madrid · ES

Funding

Fundación Mutua Madrileña 2016Instituto de Salud Carlos III CP14/00008; CPII19/00005; PI16/00735; PI19/00082; PI18/01387
6 · The paper itself

Abstract

Traumatic brain injury (TBI) is one of the leading causes of mortality and disability worldwide without any validated biomarker or set of biomarkers to help the diagnosis and evaluation of the evolution/prognosis of TBI patients. To achieve this aim, a deeper knowledge of the biochemical and pathophysiological processes triggered after the trauma is essential. Here, we identified the serum amyloid A1 protein-Toll-like receptor 4 (SAA1-TLR4) axis as an important link between inflammation and the outcome of TBI patients. Using serum and mRNA from white blood cells (WBC) of TBI patients, we found a positive correlation between serum SAA1 levels and injury severity, as well as with the 6-month outcome of TBI patients. SAA1 levels also correlate with the presence of TLR4 mRNA in WBC. In vitro, we found that SAA1 contributes to inflammation via TLR4 activation that releases inflammatory cytokines, which in turn increases SAA1 levels, establishing a positive proinflammatory loop. In vivo, post-TBI treatment with the TLR4-antagonist TAK242 reduces SAA1 levels, improves neurobehavioral outcome, and prevents blood-brain barrier disruption. Our data support further evaluation of (i) post-TBI treatment in the presence of TLR4 inhibition for limiting TBI-induced damage and (ii) SAA1-TLR4 as a biomarker of injury progression in TBI patients.

Indexed as

biomarkersimmunomodulationneuroinflammationprognosistraumatic brain injury

Identifiers

PMID34070533
PMCPMC8227125
OpenAlexW3164449820

What OpenQuestion 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 OpenQuestion graph.