Evidence map›Paper›PMID 35140282›Full record

ArticleScientific reports2022

Cytokine changes in cerebrospinal fluid and plasma after emergency orthopaedic surgery.

Michael Fertleman, Christopher Pereira, Melanie Dani, Benjamin H L Harris, Matteo Di Giovannantonio, Simon D Taylor-Robinson

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 7% 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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

  1. Pooled it
  2. Observational
  3. Article
  4. Review
  5. Article
  6. Observational
  7. Pain and Sleep Biomarkers in Participants Undergoing Orthopedic Surgeries.International journal of molecular sciences · 2025
    Observational
  8. Nicotinamide Prevents the Plasticity Impairments and the Cognitive Dysfunction Caused by Bone Fracture in Older Mice.The journals of gerontology. Series A, Biological sciences and medical sciences · 2025
    Article
  9. Article
  10. Article
  11. Observational
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Review
  19. Review
  20. 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

6 authors at 2 institutions in 1 country.

Michael Fertleman *Cutrale Perioperative and Ageing Group, Department of Bioengineering, Imperial College London, London, UK. m.fertleman@imperial.ac.uk.
Christopher Pereira *Cutrale Perioperative and Ageing Group, Department of Bioengineering, Imperial College London, London, UK.
Melanie DaniCutrale Perioperative and Ageing Group, Department of Bioengineering, Imperial College London, London, UK.
Benjamin H L HarrisComputational Biology and Integrative Genomics, Department of Oncology, University of Oxford, Oxford, UK.
Matteo Di GiovannantonioComputational Biology and Integrative Genomics, Department of Oncology, University of Oxford, Oxford, UK.
Simon D Taylor-RobinsonDepartment of Surgery and Cancer, Imperial College London, London, UK.
Imperial College London · GBUniversity of Oxford · GB

Funding

Department of HealthWellcome Trust
6 · The paper itself

Abstract

Neuroinflammation after surgery and its contribution to peri-operative neurocognitive disorders (PND) is not well understood. Studying the association between central and peripheral cytokines and neuroinflammation is a prelude to the development of treatments for PND. Here, we investigate the hypotheses that there is a greater cytokine response in cerebrospinal fluid (CSF) than plasma after orthopaedic surgery, and that plasma cytokine levels are directly related to CSF cytokine levels, indicating that plasma cytokine levels may have potential as biomarkers of neuroinflammation. Patients admitted with a fractured neck of femur were invited to participate in this study. Participants had a spinal catheter inserted just prior to induction of anaesthesia. Samples of blood and CSF were taken before, immediately after, and on the first day following emergency surgery. The catheter was then removed. Samples were analysed for the presence of ten cytokines by immunoassay. A spinal catheter was successfully inserted in 11 participants during the 18-month study period. Five plasma cytokines (IL-4, IL-6, IL-10, IL-12p70 and IL-13) rose significantly following surgery, whereas all ten CSF cytokines rose significantly (IL-1β, IL-2, IL-4, IL-6, IL-8, IL-10, IL-12p70, IL-13, IFN-γ and TNF-α) (adjusted-p < 0.05). Central (CSF) cytokine levels were consistently higher than their peripheral (plasma) counterparts after surgery, with some patients having a particularly marked neuroinflammatory response. The greatest increases occurred in IL-8 in CSF and IL-6 in plasma. There were significant, strong positive correlations between several of the measured cytokines in the CSF after surgery, but far fewer in plasma. There was no significant correlation between cytokine levels in the plasma and CSF at each of the three time points. To our knowledge, this is the first study to analyse paired samples of plasma and CSF for cytokine levels before and after emergency orthopaedic surgery. This study demonstrates that following surgery for a fractured neck of femur, there is a far greater rise in cytokines in the CSF compared to plasma. The lack of correlation between peripheral and central cytokines suggests measurement of peripheral cytokines are not necessarily related to which patients may have a large neuroinflammatory response.

Indexed as

AgedAged, 80 and overBiomarkersCorrelation of DataCytokinesFemaleHumansLondonMaleNeuroinflammatory DiseasesOrthopedic ProceduresPerioperative PeriodPlasmaTime FactorsBiomarkersCytokines

Identifiers

PMID35140282
PMCPMC8828833
OpenAlexW4210838196

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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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.