Evidence map›Paper›PMID 34344830›Full record

ArticleRMD open2021

Macrophage migration inhibitory factor: a potential biomarker for chronic low back pain in patients with Modic changes.

Elisabeth Gjefsen, Kristina Gervin, Guro Goll, Lars Christian Haugli Bråten, Monica Wigemyr, Hans Christian D Aass, Maria Dehli Vigeland, Elina Schistad, Linda Margareth Pedersen, Are Hugo Pripp and 3 more

Open access · goldAbstract read
In one paragraph

Article in RMD open, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.9field-weighted citation impact, top 28% 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, 17 citations in OpenAlex.

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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

13 authors at 4 institutions in 1 country.

Elisabeth GjefsenCommunication and Research Unit for Musculoskeletal Disorders, Oslo universitetssykehus Ulleval, Oslo, Norway e.gjefsen@gmail.com.ORCID 0000-0003-0470-7225
Kristina GervinDepartment of Research and Innovation, Oslo University Hospital, Oslo, Norway.
Guro GollDepartment of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway.
Lars Christian Haugli BråtenDepartment of Research and Innovation, Oslo University Hospital, Oslo, Norway.
Monica WigemyrDepartment of Research and Innovation, Oslo University Hospital, Oslo, Norway.
Hans Christian D AassDepartment of Medical Biochemistry, Oslo University Hospital, Oslo, Norway.
Maria Dehli VigelandFaculty of Medicine, University of Oslo, Oslo, Norway.
Elina SchistadDepartment of Physical Medicine and Rehabilitation, Oslo University Hospital, Oslo, Norway.
Linda Margareth PedersenDepartment of Research and Innovation, Oslo University Hospital, Oslo, Norway.
Are Hugo PrippOslo Centre of Biostatistics and Epidemiology Research Support Services, Oslo University Hospital Ullevaal, Oslo, Norway.
Kjersti StorheimCommunication and Research Unit for Musculoskeletal Disorders, Oslo universitetssykehus Ulleval, Oslo, Norway.
Kaja Kristine SelmerDepartment of Research and Innovation, Oslo University Hospital, Oslo, Norway.
John Anker ZwartFaculty of Medicine, University of Oslo, Oslo, Norway.
Oslo University Hospital · NODiakonhjemmet Hospital · NOOsloMet – Oslo Metropolitan University · NOUniversity of Oslo · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLow back pain (LBP) is a leading cause of disability worldwide, but the aetiology remains poorly understood. Finding relevant biomarkers may lead to better understanding of disease mechanisms. Patients with vertebral endplate bone marrow lesions visualised on MRI as Modic changes (MCs) have been proposed as a distinct LBP phenotype, and inflammatory mediators may be involved in the development of MCs.

objectivesTo identify possible serum biomarkers for LBP in patients with MCs.

methodsIn this case control study serum levels of 40 cytokines were compared between patients with LBP and MC type 1 (n=46) or type 2 (n=37) and healthy controls (n=50).

resultsAnalyses identified significantly higher levels of six out of 40 cytokines in the MC type 1 group (MC1), and five in the MC type 2 group (MC2) compared with healthy controls. Six cytokines were moderately correlated with pain. Principal component analyses revealed clustering and separation of patients with LBP and controls, capturing 40.8% of the total variance, with 10 cytokines contributing to the separation. Macrophage migration inhibitory factor (MIF) alone accounted for 92% of the total contribution. Further, receiver operating characteristics analysis revealed that MIF showed an acceptable ability to distinguish between patients and controls (area under the curve=0.79).

conclusionsThese results suggest that cytokines may play a role in LBP with MCs. The clinical significance of the findings is unknown. MIF strongly contributed to clustering of patients with LBP with MCs and controls, and might be a biomarker for MCs. Ultimately, these results may guide future research on novel treatments for this patient group.

Indexed as

Low Back PainBiomarkersCase-Control StudiesHumansLumbar VertebraeMacrophagesBiomarkerscytokinesinflammationlow back pain

Identifiers

PMID34344830
PMCPMC8336134
OpenAlexW3189392761

What OpenQuestion holds

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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.