Evidence map›Paper›PMID 9389221›Full record

ArticleAnnals of the rheumatic diseases1997

Reduced cortical responses to noxious heat in patients with rheumatoid arthritis.

A K Jones, S W Derbyshire

Open access · bronzeAbstract read
In one paragraph

Article in Annals of the rheumatic diseases, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
1.8field-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

39 citing papers in PubMed, 107 citations in OpenAlex.

  1. Article
  2. Targeting Prefrontal Cortex Dysfunction in Pain.The Journal of pharmacology and experimental therapeutics · 2024
    Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Pain: A Review of Interleukin-6 and Its Roles in the Pain of Rheumatoid Arthritis.Open access rheumatology : research and reviews · 2021
    Review
  8. Article
  9. Article
  10. Altered Excitability and Local Connectivity of mPFC-PAG Neurons in a Mouse Model of Neuropathic Pain.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2018
    Article
  11. Review
  12. Review
  13. Review
  14. Article
  15. Pain in Times of Stress.The Malaysian journal of medical sciences : MJMS · 2015
    Article
  16. Review
  17. Observational
  18. Review
  19. Brain structural and psychometric alterations in chronic low back pain.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 · 2013
    Article
  20. Review
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

2 authors at 2 institutions in 2 countries.

A K JonesHuman Physiology and Pain Research Laboratory, University of Manchester Rheumatic Diseases Centre, Hope Hospital, Salford.
S W Derbyshire
University of Manchester · GBUniversity of Pittsburgh · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo test the hypothesis that patients with chronic inflammatory pain develop adaptive cortical responses to noxious stimulation characterised by reduced anterior cingulate responses.

methodsPositron emission tomography was used to measure changes in regional cerebral blood flow (rCBF) in response to an acute experimental pain stimulus in six patients with rheumatoid arthritis (RA) in comparison to six age and sex matched controls. A standardised and reproducible non-painful and painful phasic heat stimulus was delivered by a thermal probe to the back of the right hand during six two minute periods during which time rCBF measurements were made. The effects of non-painful heat were subtracted from those of painful heat to weight the analysis towards the non-discriminatory or 'suffering' components of pain processing. Significance maps of pain processing were generated and compared in each group and contrasted with results obtained in a group of patients with atypical facial pain (AFP) that have been previously published.

resultsThe RA patients showed remarkably damped cortical and subcortical responses to pain compared with the control group. Significant differences between the two groups were observed in the prefrontal (BA 10) and anterior cingulate (BA 24) and cingulofrontal transition cortical (BA 32) areas. The reduced anterior cingulate responses to standardised heat pain were compared with the increased cingulate responses seen in patients with psychogenically maintained pain (AFP) who had both lower pain tolerance and mood than the RA group.

conclusionsMajor cortical adaptive responses to standardised noxious heat can be measured and contrasted in patients with different types of chronic pain. The different pattern of cingulate and frontal cortical responses in the patients with inflammatory and non-nociceptive pain suggest that different mechanisms are operating, possibly at a thalamocortical level. Implications for treatment strategies for chronic pain are discussed.

Indexed as

Adaptation, PhysiologicalPain ThresholdArthritis, RheumatoidCerebral CortexChronic DiseaseFemaleHot TemperatureHumansMiddle AgedRegional Blood FlowTomography, Emission-Computed

Identifiers

PMID9389221
PMCPMC1752267
OpenAlexW2101369755

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.