Evidence map›Paper›PMID 38352865›Full record

SynthesisFrontiers in immunology2024

Gut dysbiosis in patients with chronic pain: a systematic review and meta-analysis.

Lisa Goudman, Thomas Demuyser, Julie G Pilitsis, Maxime Billot, Manuel Roulaud, Philippe Rigoard, Maarten Moens

Open access · goldAbstract readSystematic ReviewMeta-Analysis
In one paragraph

Synthesis in Frontiers in immunology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 1 pooled it
10.1field-weighted citation impact, top 1% 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

41 citing papers in PubMed, 1 synthesis or guideline pooled it, 44 citations in OpenAlex.

  1. Pooled it
  2. Review
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  12. Journal of pain research · 2026
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  13. Review
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  15. Article
  16. Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 6 institutions in 3 countries.

Lisa GoudmanSTIMULUS (Research and Teaching Neuromodulation Uz Brussel) Research Group, Vrije Universiteit Brussel, Brussels, Belgium.
Thomas DemuyserDepartment Microbiology and Infection Control, Universitair Ziekenhuis Brussel, Brussels, Belgium.
Julie G PilitsisCharles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, United States.
Maxime BillotPRISMATICS Lab (Predictive Research in Spine/Neuromodulation Management and Thoracic Innovation/Cardiac Surgery), Poitiers University Hospital, Poitiers, France.
Manuel RoulaudPRISMATICS Lab (Predictive Research in Spine/Neuromodulation Management and Thoracic Innovation/Cardiac Surgery), Poitiers University Hospital, Poitiers, France.
Philippe RigoardPRISMATICS Lab (Predictive Research in Spine/Neuromodulation Management and Thoracic Innovation/Cardiac Surgery), Poitiers University Hospital, Poitiers, France.
Maarten MoensSTIMULUS (Research and Teaching Neuromodulation Uz Brussel) Research Group, Vrije Universiteit Brussel, Brussels, Belgium.
Université de Poitiers · FRCentre National de la Recherche Scientifique · FRFlorida Atlantic University · USResearch Foundation - Flanders · BEUniversitair Ziekenhuis Brussel · BEVrije Universiteit Brussel · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Introduction: Recent evidence supports the contribution of gut microbiota dysbiosis to the pathophysiology of rheumatic diseases, neuropathic pain, and neurodegenerative disorders. The bidirectional gut-brain communication network and the occurrence of chronic pain both involve contributions of the autonomic nervous system and the hypothalamic pituitary adrenal axis. Nevertheless, the current understanding of the association between gut microbiota and chronic pain is still not clear. Therefore, the aim of this study is to systematically evaluate the existing knowledge about gut microbiota alterations in chronic pain conditions. Methods: Four databases were consulted for this systematic literature review: PubMed, Web of Science, Scopus, and Embase. The Newcastle-Ottawa Scale was used to assess the risk of bias. The study protocol was prospectively registered at the International prospective register of systematic reviews (PROSPERO, CRD42023430115). Alpha-diversity, β-diversity, and relative abundance at different taxonomic levels were summarized qualitatively, and quantitatively if possible. Results: The initial database search identified a total of 3544 unique studies, of which 21 studies were eventually included in the systematic review and 11 in the meta-analysis. Decreases in alpha-diversity were revealed in chronic pain patients compared to controls for several metrics: observed species (SMD= -0.201, 95% CI from -0.04 to -0.36, p=0.01), Shannon index (SMD= -0.27, 95% CI from -0.11 to -0.43, p<0.001), and faith phylogenetic diversity (SMD -0.35, 95% CI from -0.08 to -0.61, p=0.01). Inconsistent results were revealed for beta-diversity. A decrease in the relative abundance of the Lachnospiraceae family, genus Discussion: Indications for gut microbiota dysbiosis were revealed in chronic pain patients, with non-specific disease alterations of microbes. Systematic review registration: https://www.crd.york.ac.uk/prospero/, identifier CRD42023430115.

Indexed as

Chronic PainDysbiosisGastrointestinal MicrobiomeBrain-Gut AxisHumansbiomarkergut-brain axisgut compositionmicrobiotapersistent painstool samples

Identifiers

PMID38352865
PMCPMC10862364
OpenAlexW4391375476

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.