Evidence map›Paper›PMID 34023967›Full record

ArticleEuropean spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society2021

Low back pain scores correlate with the cytokine mRNA level in lumbar disc biopsies: a study of inflammatory markers in patients undergoing lumbar spinal fusion.

Sanjay S Aripaka, R Bech-Azeddine, L M Jørgensen, S A Chughtai, C Gaarde, T Bendix, J D Mikkelsen

Abstract read
PubMed Publisher
In one paragraph

Article in European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.5field-weighted citation impact, top 18% 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

8 citing papers in PubMed, 14 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Review
  8. 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

7 authors at 3 institutions in 1 country.

Sanjay S AripakaNeurobiology Research Unit, University Hospital Copenhagen, Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen, Denmark.
R Bech-AzeddineCopenhagen Spine Research Unit, Center for Rheumatology and Spine Diseases, Rigshospitalet, Glostrup, Denmark.
L M JørgensenNeurobiology Research Unit, University Hospital Copenhagen, Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen, Denmark.
S A ChughtaiCopenhagen Spine Research Unit, Center for Rheumatology and Spine Diseases, Rigshospitalet, Glostrup, Denmark.
C GaardeCopenhagen Spine Research Unit, Center for Rheumatology and Spine Diseases, Rigshospitalet, Glostrup, Denmark.
T BendixCopenhagen Spine Research Unit, Center for Rheumatology and Spine Diseases, Rigshospitalet, Glostrup, Denmark.
J D MikkelsenNeurobiology Research Unit, University Hospital Copenhagen, Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen, Denmark. jens_mikkelsen@dadlnet.dk.
Glostrup Hospital · DKRigshospitalet · DKUniversity of Copenhagen · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe molecular mechanism behind pain in degenerative disc disease (DDD) and chronic low back pain (LBP) patients is largely unknown. This present study examines the association of LBP and disability to mediators of the inflammatory cascade, as indexed by mRNA gene expression of pro-inflammatory cytokine markers in the intervertebral disc (IVD).

methodsBiopsies of the annulus fibrosus (AF) and the nucleus pulposes (NP) from patients with DDD undergoing 1-2 level fusion surgery at L4/L5 or L5/S1 were obtained from total of 34 patients [9 M, 25 F] with average age of 53 [32-63]. The mRNA expression of TNF-α, IL-1β, and IL-6 in the AF and NP was analyzed using quantitative real-time polymerase chain reaction (RT-qPCR), and the expression level of these markers was correlated to the visual analogue scale (VAS) and Oswestry Disability Index (ODI) scores (0-100) for pain and disability.

resultsWe report a statistically significant positive correlation between pain intensity (VAS score) and the expression of TNF-α in both the AF (r = 0.54, p = 0.001) and NP (r = 0.40, p = 0.02), similarly with IL-1β in AF (r = 0.37, p = 0.02) and IL-6 in NP (r = 0.40, p = 0.02). In addition, we found significant positive correlation observed between disability score (ODI) and expression of IL-6 in both AF (r = 0.36, p = 0.03) and NP (r = 0.41, p = 0.01).

conclusionWe conclude that the intensity of LBP and disability is associated with the level of inflammation in the disc.

Indexed as

Low Back PainSpinal FusionAdultBiopsyCytokinesHumansLumbar VertebraeMiddle AgedRNA, MessengerCytokinesRNA, MessengerDegenerative discIntervertebral discLow back painTNF-αVAS score

Identifiers

PMID34023967
OpenAlexW3165501291

What OpenQuestion holds

Textmetadata
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.