Evidence map›Paper›PMID 37882803›Full record

ArticleNeuroradiology2023

Neural correlates of central pain sensitization in chronic low back pain: a resting-state fMRI study.

NingJian Fan, JiXi Chen, Bing Zhao, LiYun Liu, WeiZhen Yang, Xian Chen, ZhanBin Lu, LiGong Wang, HengCong Cao, AiGuo Ma

Abstract read
PubMed Publisher
In one paragraph

Article in Neuroradiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
4.8field-weighted citation impact, top 5% 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

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

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Review
  9. Review
  10. Review
  11. Article
  12. 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

10 authors at 1 institution in 1 country.

NingJian FanDepartment of Spinal Surgery, The Second Hospital of Tangshan, Tangshan, China.ORCID http://orcid.org/0009-0003-8474-1024
JiXi ChenPediatric Neurology Department EEG Room, Maternal and Child Health Hospital of Tangshan, Tangshan, China.
Bing ZhaoDepartment of Spinal Surgery, The Second Hospital of Tangshan, Tangshan, China.
LiYun LiuDepartment of Spinal Surgery, The Second Hospital of Tangshan, Tangshan, China.
WeiZhen YangDepartment of Spinal Surgery, The Second Hospital of Tangshan, Tangshan, China.
Xian ChenDepartment of Spinal Surgery, The Second Hospital of Tangshan, Tangshan, China.
ZhanBin LuDepartment of Spinal Surgery, The Second Hospital of Tangshan, Tangshan, China.
LiGong WangDepartment of Spinal Surgery, The Second Hospital of Tangshan, Tangshan, China.
HengCong CaoDepartment of Spinal Surgery, The Second Hospital of Tangshan, Tangshan, China.
AiGuo MaDepartment of Trauma, The Second Hospital of Tangshan, Tangshan, China. liurui0730@icloud.com.
Second Hospital of Tangshan · CN

Funding

Henan Provincial Science and Technology Research Project 20231737
6 · The paper itself

Abstract

purposeThe objective of this study is to explore the neural correlates of pain sensitization in patients with chronic low back pain (cLBP). While the association between cLBP and pain sensitization has been widely reported, the underlying brain mechanism responsible for this relationship requires further investigation.

methodsOur study included 56 cLBP patients and 56 healthy controls (HC). Functional magnetic resonance imaging data were obtained, and the voxel-wise amplitude of low-frequency fluctuation (ALFF) was calculated to identify brain alterations in cLBP patients compared to HC groups. Pearson correlation coefficients were computed to explore the association between clinical data and brain alterations. Furthermore, mediation analyses were performed to investigate the path association between brain alterations and pain-related behaviors.

resultsOur findings revealed that patients with cLBP exhibited higher sensitivity, attention, and catastrophizing tendencies towards pain compared to HC. Furthermore, cLBP patients displayed significantly higher ALFF in various brain regions within the "pain matrix" and the default mode network when compared to HC. The altered precuneus ALFF was positively correlated with pain intensity (R = 0.51, P<0.001) and was negatively correlated with pain sensitivity (R = -0.43, P<0.001) in cLBP patients. Importantly, the effect of altered precuneus ALFF on pain intensity was mediated by pain threshold in these patients.

conclusionOur study suggests that altered neural activity in the precuneus may contribute to pain hypersensitivity, which further exacerbating pain in cLBP patients.

Indexed as

Chronic PainLow Back PainBrainBrain MappingHumansMagnetic Resonance ImagingPain MeasurementAmplitude of low-frequency fluctuationChronic low back painChronic painDefault mode networkFunctional magnetic resonance imaging

Identifiers

PMID37882803
OpenAlexW4387950131

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.