Evidence map›Paper›PMID 37878193›Full record

ArticleMolecular and cellular pediatrics2023

A novel serum calprotectin (MRP8/14) particle-enhanced immuno-turbidimetric assay (sCAL turbo) helps to differentiate systemic juvenile idiopathic arthritis from other diseases in routine clinical laboratory settings.

Dirk Foell, Melanie Saers, Carolin Park, Ninna Brix, Mia Glerup, Christoph Kessel, Helmut Wittkowski, Claas Hinze, Lillemor Berntson, Anders Fasth and 9 more

Abstract read
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Article in Molecular and cellular pediatrics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
–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

10 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Guideline
  2. Coixenolide Enhances Antitumor Immunity of Cytotoxic CD8Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
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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

19 authors.

Dirk FoellDepartment of Pediatric Rheumatology and Immunology, University Children's Hospital Muenster, Muenster, D-48149, Germany. dfoell@uni-muenster.de.
Melanie SaersDepartment of Pediatric Rheumatology and Immunology, University Children's Hospital Muenster, Muenster, D-48149, Germany.
Carolin ParkDepartment of Pediatric Rheumatology and Immunology, University Children's Hospital Muenster, Muenster, D-48149, Germany.
Ninna BrixDepartment of Pediatric and Adolescent Medicine, Aalborg University Hospital, Aalborg, Denmark.
Mia GlerupDepartment of Pediatrics and Adolescent Medicine, Aarhus University Hospital, Aarhus, Denmark.
Christoph KesselDepartment of Pediatric Rheumatology and Immunology, University Children's Hospital Muenster, Muenster, D-48149, Germany.
Helmut WittkowskiDepartment of Pediatric Rheumatology and Immunology, University Children's Hospital Muenster, Muenster, D-48149, Germany.
Claas HinzeDepartment of Pediatric Rheumatology and Immunology, University Children's Hospital Muenster, Muenster, D-48149, Germany.
Lillemor BerntsonDepartment of Women's and Children's Health, Uppsala University, Uppsala, Sweden.
Anders FasthDepartment of Pediatrics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
Charlotte MyrupDepartment of Pediatrics, Copenhagen University Hospital, Copenhagen, Denmark.
Ellen NordalDepartment of Pediatrics, University Hospital of North Norway, Tromso, Norway.
Marite RyggDepartment of Pediatrics, St. Olavs Hospital, Trondheim, Norway.
Henrik HasleDepartment of Pediatrics and Adolescent Medicine, Aarhus University Hospital, Aarhus, Denmark.
Birgitte Klug AlbertsenDepartment of Pediatrics and Adolescent Medicine, Aarhus University Hospital, Aarhus, Denmark.
Troels HerlinDepartment of Pediatrics and Adolescent Medicine, Aarhus University Hospital, Aarhus, Denmark.
Dirk HolzingerDepartment of Pediatric Hematology-Oncology, University of Duisburg-Essen, Essen, Germany.
Christian NiederbergerBÜHLMANN Laboratories AG, Schönenbuch, Switzerland.
Bernhard SchlüterCentral Laboratory, University Hospital Muenster, Muenster, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDifferential diagnosis in children with signs of unprovoked inflammation can be challenging. In particular, differentiating systemic juvenile idiopathic arthritis (SJIA) from other diagnoses is difficult. We have recently validated the complex of myeloid-related proteins 8/14 (MRP8/14, also known as S100A8/A9 complex or serum calprotectin) as a helpful biomarker supporting the diagnosis of SJIA. The results were subsequently confirmed with a commercial ELISA. However, further optimization of the analytical technology is important to ensure its feasibility for large-scale use in routine laboratory settings.

methodsTo evaluate the accuracy in identifying children with SJIA, the performance of a particle-enhanced immuno-turbidimetric assay for serum calprotectin (sCAL turbo) on an automated laboratory instrument was analyzed. Samples from 615 children were available with the diagnoses SJIA (n = 99), non-systemic JIA (n = 169), infections (n = 51), other inflammatory diseases (n = 126), and acute lymphoblastic leukemia (ALL, n = 147). In addition, samples from 23 healthy controls were included.

resultsThe sCAL turbo assay correlated well with the MRP8/14 ELISA used in previous validation studies (r = 0.99, p < 0.001). It could reliably differentiate SJIA from all other diagnoses with significant accuracy (cutoff at 10,500 ng/ml, sensitivity 84%, specificity 94%, ROC area under curve 0.960, p < 0.001).

conclusionsSerum calprotectin analyses are a helpful tool supporting the diagnosis of SJIA in children with prolonged fever or inflammatory disease. Here, we show that an immuno-turbidimetric assay for detection of serum calprotectin on an automated laboratory instrument can be implemented in clinical laboratory settings to facilitate its use as a diagnostic routine test in clinical practice.

Indexed as

BiomarkersFever of unknown originStill’s syndromeSystemic inflammation

Identifiers

PMID37878193
PMCPMC10600080

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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.