Evidence map›Paper›PMID 25822281›Full record

Observational studyPloS one2015

Serum levels of caspase-cleaved cytokeratin-18 in patients with severe traumatic brain injury are associated with mortality: a pilot study.

Leonardo Lorente, María M Martín, Agustín F González-Rivero, Mónica Argueso, Luis Ramos, Jordi Solé-Violán, Juan J Cáceres, Alejandro Jiménez, Juan M Borreguero-León

Open access · goldAbstract readMulticenter StudyObservational Study
In one paragraph

Observational study in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.2field-weighted citation impact, top 13% 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

18 citing papers in PubMed, 31 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Cell Death and Recovery in Traumatic Brain Injury.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2020
    Review
  8. Article
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  11. Review
  12. Article
  13. Article
  14. Observational
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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

9 authors at 5 institutions in 1 country.

Leonardo LorenteIntensive Care Unit, Hospital Universitario de Canarias, La Laguna, Tenerife, Spain.
María M MartínIntensive Care Unit, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain.
Agustín F González-RiveroLaboratory Deparment, Hospital Universitario de Canarias, Laguna, Tenerife, Spain.
Mónica ArguesoIntensive Care Unit, Hospital Clínico Universitario de Valencia, Valencia, Spain.
Luis RamosIntensive Care Unit, Hospital General de La Palma, Breña Alta, La Palma, Spain.
Jordi Solé-ViolánIntensive Care Unit, Hospital Universitario Dr. Negrín, CIBERES, Las Palmas de Gran Canaria, Spain.
Juan J CáceresIntensive Care Unit, Hospital Insular, Las Palmas de Gran Canaria, Spain.
Alejandro JiménezResearch Unit, Hospital Universitario de Canarias, La Laguna, Tenerife, Spain.
Juan M Borreguero-LeónLaboratory Deparment, Hospital Universitario de Canarias, Laguna, Tenerife, Spain.
Hospital Universitario de Canarias · ESHospital Clínico Universitario de Valencia · ESHospital Universitario de Gran Canaria Doctor Negrín · ESHospital Universitario Insular de Gran Canaria · ESHospital Universitario Nuestra Señora de Candelaria · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThere have been found apoptotic changes in brain tissue samples from animals and humans after a traumatic brain injury (TBI). The protein cytokeratin 18 (CK-18), present in epithelial cells, is cleaved by the action of caspases during apoptosis, and the resulting fragments are released into the blood as caspase-cleaved CK (CCCK)-18. Circulating levels of CCCK-18, as biomarker of apoptosis, have been determined in patients with different processes; however, it has not been explored in TBI patients. Thus, the objective of this study was to determine whether there is an association between serum CCCK-18 levels and mortality and whether such levels could be used as a biomarker to predict outcomes in TBI patients.

methodsA prospective, observational, multicenter study carried out in six Spanish Intensive Care Units. We included patients with severe TBI defined as Glasgow Coma Scale (GCS) lower than 9; and were excluded those patients with Injury Severity Score (ISS) in non-cranial aspects higher than 9. We measured serum CCCK-18 levels at admission. The end-point of the study was 30-day mortality.

resultsSurviving patients (n = 73) showed lower serum CCCK-18 levels (P = 0.003) than non-survivors (n = 27). On ROC analysis, the area under the curve (AUC) for serum CCCK-18 levels as predictor of 30-day mortality was 0.69 (95% CI = 0.59-0.78; P = 0.006). We found in survival analysis that patients with serum CCCK-18 higher than 201 u/L had higher 30-day mortality than patients with lower levels (Hazard ratio = 3.9; 95% CI = 1.81-8.34; P<0.001). Regression analyses showed that serum CCCK-18 levels higher than 201 u/L were associated with 30-day mortality (OR = 8.476; 95% CI = 2.087-34.434; P = 0.003) after controlling for age and GCS.

conclusionsThe novel finding of our study was that serum CCCK-18 levels are associated with 30-day mortality and could be used as a prognostic biomarker in patients with severe TBI.

Indexed as

AdultAgedBiomarkersBrain InjuriesCaspasesFemaleHumansKaplan-Meier EstimateKeratin-18MaleMiddle AgedPeptide FragmentsPilot ProjectsPrognosisProspective StudiesSpainBiomarkersCaspasesKeratin-18Peptide Fragments

Identifiers

PMID25822281
PMCPMC4379106
OpenAlexW2091029709

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.