Evidence map›Paper›PMID 30264383›Full record

ArticleJournal of anesthesia2018

Suppressed descending pain modulatory and enhanced sensorimotor networks in patients with chronic low back pain.

Tianjiao Li, Shuo Zhang, Jiro Kurata

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Article in Journal of anesthesia, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 2 pooled it
–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

27 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Brain stimulation targets for chronic pain: Insights from meta-analysis, functional connectivity and literature review.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2024
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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

3 authors.

Tianjiao LiDepartment of Anesthesiology, Tokyo Medical and Dental University Graduate School of Medical and Dental Sciences, Tokyo, Japan.
Shuo ZhangDepartment of Anesthesiology, Tokyo Medical and Dental University Graduate School of Medical and Dental Sciences, Tokyo, Japan.
Jiro KurataDepartment of Anesthesiology and Pain Clinic, Tokyo Medical and Dental University Hospital of Medicine, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan. jkurata@plum.plala.or.jp.ORCID http://orcid.org/0000-0002-7904-3286

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeAlthough cerebral structural and functional changes were uncovered by neuroimaging in patients with chronic low back pain (CLBP), their associations remain to be clarified. We co-analyzed anatomical and functional magnetic resonance imaging data in those patients and tested whether cortical gray matter volume changes are associated with altered pain modulatory networks underlying chronification of pain.

methodsIn 16 patients with CLBP and 16 heathy controls, we performed functional magnetic resonance imaging during mechanical pain stimulation on the lower back followed by anatomical imaging. We performed voxel-based morphometry and functional connectivity analysis from the seeds with altered gray matter volume, and examined correlations between imaging and psychophysical parameters.

resultsPatients showed decreases in gray matter volume at the right dorsolateral prefrontal cortex, middle occipital gyrus, and cerebellum, and showed increases at the bilateral primary sensorimotor cortices, left fusiform gyrus, and right cerebellum compared with controls (P < 0.001). Dorsolateral prefrontal and fusiform volumes showed negative associations with affective comorbidity, whereas motor cortex volume with impaired daily activity (P < 0.05). Connectivity was decreased between the cerebellar and limbic, and increased between the bilateral sensorimotor regions (P

conclusionPatients showed a decreased volume of cortical center for descending pain modulation and an increased volume of sensorimotor network, in association with suppressed descending pain modulatory and cerebellum-limbic networks and enhanced sensorimotor network during pain. Such structural and functional alterations might be part of cerebral pathophysiology of CLBP.

Indexed as

AdultCase-Control StudiesFemaleHumansLow Back PainMagnetic Resonance ImagingMaleMiddle AgedYoung AdultChronic painDescending pain modulatory networkFunctional connectivityGray matter volume

Identifiers

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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.