Evidence map›Paper›PMID 33556139›Full record

ArticlePloS one2021

Abnormal neuroinflammation in fibromyalgia and CRPS using [11C]-(R)-PK11195 PET.

Seongho Seo, Ye-Ha Jung, Dasom Lee, Won Joon Lee, Joon Hwan Jang, Jae-Yeon Lee, Soo-Hee Choi, Jee Youn Moon, Jae Sung Lee, Gi Jeong Cheon and 1 more

Abstract readComparative Study
In one paragraph

Article in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
–field-weighted citation impact
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

29 citing papers in PubMed.

  1. Review
  2. Fibromyalgia: A Multifactorial Pain Disorder.International journal of molecular sciences · 2026
    Review
  3. Review
  4. Article
  5. Review
  6. Review
  7. Fibromyalgia in the Era of Brain PET/CT Imaging.Journal of clinical medicine · 2025
    Review
  8. Article
  9. Article
  10. Review
  11. Review
  12. Article
  13. Review
  14. Review
  15. Unveiling the link between chronic pain and misuse of opioids and cannabis.Journal of neural transmission (Vienna, Austria : 1996) · 2024
    Review
  16. Article
  17. Abnormal functional neurocircuitry underpinning emotional processing in fibromyalgia.European archives of psychiatry and clinical neuroscience · 2024
    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

11 authors.

Seongho SeoDepartment of Electronic Engineering, Pai Chai University, Daejeon, Republic of Korea.
Ye-Ha JungDepartment of Psychiatry, Seoul National University Hospital, Seoul, Republic of Korea.
Dasom LeeDepartment of Psychiatry, Seoul National University Hospital, Seoul, Republic of Korea.
Won Joon LeeDepartment of Psychiatry, Kangdong Sacred Heart Hospital, Seoul, Republic of Korea.
Joon Hwan JangDepartment of Psychiatry, Seoul National University Hospital, Seoul, Republic of Korea.
Jae-Yeon LeeDepartment of Psychiatry, Seoul National University Hospital, Seoul, Republic of Korea.
Soo-Hee ChoiDepartment of Psychiatry, Seoul National University College of Medicine and Institute of Human Behavioral Medicine, SNU-MRC, Seoul, Republic of Korea.
Jee Youn MoonDepartment of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul, Republic of Korea.
Jae Sung LeeDepartment of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea.
Gi Jeong CheonInstitute of Radiation Medicine, Medical Research Center, Seoul National University, Seoul, Republic of Korea.
Do-Hyung KangEmotional Information and Communication Technology Association, Seoul, Republic of Korea.ORCID 0000-0002-8741-5748

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeFibromyalgia (FM) and complex regional pain syndrome (CRPS) share many pathological mechanisms related to chronic pain and neuroinflammation, which may contribute to the multifactorial pathological mechanisms in both FM and CRPS. The aim of this study was to assess neuroinflammation in FM patients compared with that in patients with CRPS and healthy controls.

methodsNeuroinflammation was measured as the distribution volume ratio (DVR) of [11C]-(R)-PK11195 positron emission tomography (PET) in 12 FM patients, 11 patients with CRPS and 15 healthy controls.

resultsNeuroinflammation in FM patients was significantly higher in the left pre (primary motor cortex) and post (primary somatosensory cortex) central gyri (p < 0.001), right postcentral gyrus (p < 0.005), left superior parietal and superior frontal gyri (p < 0.005), left precuneus (p < 0.01), and left medial frontal gyrus (p = 0.036) compared with healthy controls. Furthermore, the DVR of [11C]-(R)-PK11195 in FM patients demonstrated decreased neuroinflammation in the medulla (p < 0.005), left superior temporal gyrus (p < 0.005), and left amygdala (p = 0.020) compared with healthy controls.

conclusionsTo the authors' knowledge, this report is the first to describe abnormal neuroinflammation levels in the brains of FM patients compared with that in patients with CRPS using [11C]-(R)-PK11195 PET. The results suggested that abnormal neuroinflammation can be an important pathological factor in FM. In addition, the identification of common and different critical regions related to abnormal neuroinflammation in FM, compared with patients with CRPS and healthy controls, may contribute to improved diagnosis and the development of effective medical treatment for patients with FM.

Indexed as

AdultBrainCarbon RadioisotopesCase-Control StudiesComplex Regional Pain SyndromesEncephalitisFemaleFibromyalgiaHumansIsoquinolinesMaleMiddle AgedPositron-Emission TomographyCarbon-11Carbon RadioisotopesIsoquinolinesPK 11195

Identifiers

PMID33556139
PMCPMC7870009

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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.