Evidence map›Paper›PMID 33095348›Full record

ArticlePain and therapy2021

Resting-State Magnetoencephalography Reveals Neurobiological Bridges Between Pain and Cognitive Impairment.

Yoshihito Shigihara, Hideyuki Hoshi, Keisuke Fukasawa, Sayuri Ichikawa, Momoko Kobayashi, Yuki Sakamoto, Kazuyuki Negishi, Rika Haraguchi, Shin Konno

Open access · goldAbstract read
In one paragraph

Article in Pain and therapy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.1field-weighted citation impact, top 23% 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

8 citing papers in PubMed, 16 citations in OpenAlex.

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  6. Two Distinct Neural Mechanisms Underlying Acupuncture Analgesia.Frontiers in pain research (Lausanne, Switzerland) · 2022
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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

9 authors at 2 institutions in 1 country.

Yoshihito ShigiharaPrecision Medicine Centre, Hokuto Hospital, Obihiro, Japan. y-shigihara@hokuto7.or.jp.ORCID http://orcid.org/0000-0003-0996-110X
Hideyuki HoshiPrecision Medicine Centre, Hokuto Hospital, Obihiro, Japan.
Keisuke FukasawaClinical Laboratory, Kumagaya General Hospital, Kumagaya, Japan.
Sayuri IchikawaClinical Laboratory, Kumagaya General Hospital, Kumagaya, Japan.
Momoko KobayashiPrecision Medicine Centre, Kumagaya General Hospital, Kumagaya, Japan.
Yuki SakamotoPrecision Medicine Centre, Kumagaya General Hospital, Kumagaya, Japan.
Kazuyuki NegishiClinical Laboratory, Kumagaya General Hospital, Kumagaya, Japan.
Rika HaraguchiClinical Laboratory, Kumagaya General Hospital, Kumagaya, Japan.
Shin KonnoDepartment of Orthopaedics, Kumagaya General Hospital, Kumagaya, Japan.
Saitama Prefectural Kumagaya Girls High School · JPHokuto Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionPain has been identified as a risk factor for cognitive dysfunction, which in turn affects pain perception. Although pain, cognitive dysfunction, and their interaction are clinically important, the neural mechanism connecting the two phenomena remains unclear.

methodsThe resting-state brain activity of 38 participants was measured using magnetoencephalography before and after the patients underwent selective nerve root block (SNRB) for the treatment of their pain. We then assessed the extent to which these data correlated with the subjective levels of pain experienced by the patients across SNRB based on the visual analogue scale and the cognitive status of the patients measured after SNRB using the Japanese versions of the Mini-Mental State Examination (MMSE-J).

resultsSlow oscillations (delta) in the right precentral gyrus, right middle temporal gyrus, and left superior frontal gyrus were negatively correlated with the subjective level of pain, and fast oscillations (gamma) in the right insular cortex and right middle temporal gyrus before SNRB were negatively correlated with the MMSE-J score afterwards. These correlations disappeared after SNRB.

conclusionThe presently observed changes in neural activity, as indicated by oscillation changes, might represent the transient bridge between pain and cognitive dysfunction in patients with severe pain. Our findings underscore the importance of treating pain before a transient diminishment of cognitive function becomes persistent.

Indexed as

Cognitive dysfunctionDementiaMagnetoencephalographyNeural mechanismPainResting-state brain activitiesSelective nerve root blocksSpontaneous neural oscillations

Identifiers

PMID33095348
PMCPMC8119570
OpenAlexW3094458757

What OpenQuestion holds

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LicenceCC BY-NC
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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.