Evidence map›Paper›PMID 32936402›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

Terminal complement complex formation is associated with intervertebral disc degeneration.

Graciosa Q Teixeira, Zhiyao Yong, Raquel M Goncalves, Amelie Kuhn, Jana Riegger, Helena Brisby, Helena Barreto Henriksson, Michael Ruf, Andreas Nerlich, Uwe M Mauer and 3 more

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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 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 15% 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

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 34 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Lumbar degenerative disease: association of serum complement levels with diagnosis, structural severity, and postoperative prognosis.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 · 2026
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  14. Subclinical infection can be an initiator of inflammaging leading to degenerative disk disease: evidence from host-defense response mechanisms.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
    Article
  15. Interleukin-1β and cathepsin D modulate formation of the terminal complement complex in cultured human disc tissue.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
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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 5 institutions in 3 countries.

Graciosa Q TeixeiraInstitute of Orthopaedic Research and Biomechanics, Trauma Research Centre, Ulm University, Ulm, Germany.ORCID 0000-0003-4206-6326
Zhiyao YongInstitute of Orthopaedic Research and Biomechanics, Trauma Research Centre, Ulm University, Ulm, Germany.
Raquel M GoncalvesInstitute of Orthopaedic Research and Biomechanics, Trauma Research Centre, Ulm University, Ulm, Germany.
Amelie KuhnDivision for Biochemistry of Joint and Connective Tissue Diseases, Department of Orthopedics, Ulm University, Ulm, Germany.
Jana RieggerDivision for Biochemistry of Joint and Connective Tissue Diseases, Department of Orthopedics, Ulm University, Ulm, Germany.
Helena BrisbyDepartment of Orthopedics, Institute of Clinical Sciences, Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden.
Helena Barreto HenrikssonDepartment of Orthopedics, Institute of Clinical Sciences, Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden.
Michael RufCenter for Spine Surgery, Orthopedics, and Traumatology, SRH-Klinikum Karlsbad-Langensteinbach, Karlsbad, Germany.
Andreas NerlichDepartment of Pathology, Academic Hospital Munich-Bogenhausen, Munich, Germany.
Uwe M MauerDepartment of Neurosurgery, German Armed Forces Hospital, Ulm, Germany.
Anita IgnatiusInstitute of Orthopaedic Research and Biomechanics, Trauma Research Centre, Ulm University, Ulm, Germany.
Rolf E BrennerDivision for Biochemistry of Joint and Connective Tissue Diseases, Department of Orthopedics, Ulm University, Ulm, Germany.
Cornelia Neidlinger-WilkeInstitute of Orthopaedic Research and Biomechanics, Trauma Research Centre, Ulm University, Ulm, Germany. cornelia.neidlinger-wilke@uni-ulm.de.ORCID 0000-0001-9742-1335
Universität Ulm · DESahlgrenska University Hospital · SEMünchen Klinik Bogenhausen · DESRH Klinikum Karlsbad-Langensteinbach · DEUniversidade do Porto · PT

Funding

Deutsche Forschungsgemeinschaft BR 919/12-1Deutsche Forschungsgemeinschaft NE 549/6-1Universität Ulm L.SBN.0157
6 · The paper itself

Abstract

purposeThe complement system is a crucial part of innate immunity. Recent work demonstrated an unexpected contribution to tissue homeostasis and degeneration. This study investigated for the first time, in human disc tissues, the deposition profile of the complement activation product terminal complement complex (TCC), an inflammatory trigger and inducer of cell lysis, and its inhibitor CD59, and their correlation with the degree of disc degeneration (DD).

methodsDisc biopsies were collected from patients diagnosed with DD (n = 39, age 63 ± 12) and adolescent idiopathic scoliosis (AIS, n = 10, age 17 ± 4) and compared with discs from healthy Young (n = 11, age 7 ± 7) and Elder (n = 10, age 65 ± 15) donors. Immunohistochemical detection of TCC and CD59 in nucleus pulposus (NP), annulus fibrosus (AF) and endplate (EP) was correlated with age, Pfirrmann grade and Modic changes.

resultsHigher percentage of TCC+ cells was detected in the NP and EP of DD compared to Elder (P < 0.05), and in the EP of Young versus Elder (P < 0.001). In DD, TCC deposition was positively correlated with Pfirrmann grade, but not with Modic changes, whereas for Young donors, a negative correlation was found with age, indicating TCC's involvement not only in DD, but also in early stages of skeletal development. Higher CD59 positivity was found in AIS and DD groups compared to Young (P < 0.05), and it was negatively correlated with the age of the patients.

conclusionTCC deposition positively correlated with the degree of disc degeneration. A functional relevance of TCC may exist in DD, representing a potential target for new therapeutics.

Indexed as

Annulus FibrosusIntervertebral DiscIntervertebral Disc DegenerationAdolescentAdultAgedAged, 80 and overChildChild, PreschoolComplement ActivationComplement Membrane Attack ComplexHumansInfantInfant, NewbornMagnetic Resonance ImagingMiddle AgedComplement Membrane Attack ComplexBack painComplement systemInflammationInnate immunityScoliosis

Identifiers

PMID32936402
OpenAlexW3084679725

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.