Evidence map›Paper›PMID 29341331›Full record

ArticleHuman brain mapping2018

The relationship between thalamic GABA content and resting cortical rhythm in neuropathic pain.

Flavia Di Pietro, Paul M Macey, Caroline D Rae, Zeynab Alshelh, Vaughan G Macefield, E Russell Vickers, Luke A Henderson

Open access · bronzeAbstract read
In one paragraph

Article in Human brain mapping, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

24 citing papers in PubMed, 56 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Review
  11. Relation between heart rate variability and spectral analysis of electroencephalogram in chronic neuropathic pain patients.The Korean journal of physiology & pharmacology : official journal of the Korean Physiological Society and the Korean Society of Pharmacology · 2024
    Article
  12. Review
  13. Review
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  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

7 authors at 4 institutions in 3 countries.

Flavia Di PietroDepartment of Anatomy and Histology, Sydney Medical School, University of Sydney, Sydney, Australia.ORCID 0000-0002-9642-0805
Paul M MaceyUCLA School of Nursing and Brain Research Institute, University of California, Los Angeles, California.ORCID 0000-0003-4093-7458
Caroline D RaeNeuroscience Research Australia, Sydney, Australia.
Zeynab AlshelhDepartment of Anatomy and Histology, Sydney Medical School, University of Sydney, Sydney, Australia.
Vaughan G MacefieldNeuroscience Research Australia, Sydney, Australia.
E Russell VickersDepartment of Anatomy and Histology, Sydney Medical School, University of Sydney, Sydney, Australia.
Luke A HendersonDepartment of Anatomy and Histology, Sydney Medical School, University of Sydney, Sydney, Australia.ORCID 0000-0002-1026-0151
The University of Sydney · AUMohammed Bin Rashid University of Medicine and Health Sciences · AENeuroscience Research Australia · AUUniversity of California, Los Angeles · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Recurrent thalamocortical connections are integral to the generation of brain rhythms and it is thought that the inhibitory action of the thalamic reticular nucleus is critical in setting these rhythms. Our work and others' has suggested that chronic pain that develops following nerve injury, that is, neuropathic pain, results from altered thalamocortical rhythm, although whether this dysrhythmia is associated with thalamic inhibitory function remains unknown. In this investigation, we used electroencephalography and magnetic resonance spectroscopy to investigate cortical power and thalamic GABAergic concentration in 20 patients with neuropathic pain and 20 pain-free controls. First, we found thalamocortical dysrhythmia in chronic orofacial neuropathic pain; patients displayed greater power than controls over the 4-25 Hz frequency range, most marked in the theta and low alpha bands. Furthermore, sensorimotor cortex displayed a strong positive correlation between cortical power and pain intensity. Interestingly, we found no difference in thalamic GABA concentration between pain subjects and control subjects. However, we demonstrated significant linear relationships between thalamic GABA concentration and enhanced cortical power in pain subjects but not controls. Whilst the difference in relationship between thalamic GABA concentration and resting brain rhythm between chronic pain and control subjects does not prove a cause and effect link, it is consistent with a role for thalamic inhibitory neurotransmitter release, possibly from the thalamic reticular nucleus, in altered brain rhythms in individuals with chronic neuropathic pain.

Indexed as

RestAdultAgedBrain MappingBrain WavesCerebral CortexElectroencephalographyFemalegamma-Aminobutyric AcidHumansImage Processing, Computer-AssistedMagnetic Resonance ImagingMagnetic Resonance SpectroscopyMaleMiddle AgedNeuralgiagamma-Aminobutyric Acidchronic painelectroencephalographyGABAthalamocortical rhythm

Identifiers

PMID29341331
PMCPMC6866606
OpenAlexW2785551407

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.