SynthesisInflammopharmacology2018
The efficacy of probiotic supplementation in rheumatoid arthritis: a meta-analysis of randomized, controlled trials.
Synthesis in Inflammopharmacology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 9 of them syntheses that pooled 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.
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.
Who cites it
39 citing papers in PubMed, 9 syntheses or guidelines pooled it, 66 citations in OpenAlex.
- The 2026 British Society for Rheumatology guideline for pain management in people with inflammatory arthritis.Rheumatology (Oxford, England) · 2026Guideline
- Pooled it
- Quality of evidence supporting the role of probiotics for rheumatoid arthritis: an overview of systematic reviews.Frontiers in immunology · 2024Pooled it
- The role of probiotic supplementation in inflammatory biomarkers in adults: an umbrella meta-analysis of randomized controlled trials.Inflammopharmacology · 2023Pooled it
- Remarkable impacts of probiotics supplementation in enhancing of the antioxidant status: results of an umbrella meta-analysis.Frontiers in nutrition · 2023Pooled it
- Pooled it
- Efficacy of Probiotics in Rheumatoid Arthritis and Spondyloarthritis: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.Nutrients · 2022Pooled it
- The effect of probiotics on inflammatory biomarkers: a meta-analysis of randomized clinical trials.European journal of nutrition · 2020Pooled it
- The Effects of Supplementation with Probiotic on Biomarkers of Oxidative Stress in Adult Subjects: a Systematic Review and Meta-analysis of Randomized Trials.Probiotics and antimicrobial proteins · 2020Pooled it
- Anti-inflammatory Diet In Rheumatoid Arthritis (ADIRA)-a randomized, controlled crossover trial indicating effects on disease activity.The American journal of clinical nutrition · 2020Trial
- The Effects of Probiotic Supplementation on Genetic and Metabolic Profiles in Patients with Gestational Diabetes Mellitus: a Randomized, Double-Blind, Placebo-Controlled Trial.Probiotics and antimicrobial proteins · 2019Trial
- Gut microbiota in early and established stages of rheumatoid arthritis: from pathogenesis to promising prevention and treatment.Annals of medicine · 2026Review
- Review
- Mechanistic insights into gut microbiota-driven autoimmunity in rheumatoid arthritis.Frontiers in immunology · 2026Review
- Article
- The effects of kefir drink on liver aminotransferases and metabolic indicators in patients with nonalcoholic fatty liver disease: a randomized controlled trial.BMC nutrition · 2025Article
- Review
- Nature of the Association between Rheumatoid Arthritis and Cervical Cancer and Its Potential Therapeutic Implications.Nutrients · 2024Review
- Role of the Gut Microbiota in Osteoarthritis, Rheumatoid Arthritis, and Spondylarthritis: An Update on the Gut-Joint Axis.International journal of molecular sciences · 2024Review
- Review
Corrections and comments
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Authors and funding
6 authors at 3 institutions in 1 country.
Funding
Abstract
Probiotics are considered as -immunomodulatory agents; their efficacy as an adjunct therapy option for rheumatoid arthritis (RA), however, remains controversial. The main aim of the present meta-analysis, therefore, was to compare available data from the published randomized, controlled trials (RCTs) recruiting adults with RA which compared probiotics with placebo. The English literature search was performed using Ovid version of Medline, EmBase, Web of Science, and the Central Cochrane library through October 2016 and supplemented by hand searching reference lists. Among 240 citations identified, 4 RCTs (153 participants; 89% female) were included. All data were pooled using a standardized mean difference (SMD) with a 95% CI. Compared to the placebo, probiotics did not change the inflammatory parameters (erythrocyte sedimentation rate, tumor necrosis factor [TNF]-α, interleukin [IL]-1β, IL-6, IL-10, and IL-12) and oxidative stress indices (total antioxidant capacity and malondialdehyde) significantly. The borderline significant reduction as a result of probiotic administration was only determined in C-reactive protein [SDM - 0.32 (95% CI - 0.65 to 0.00)]. Among disease activity indices (disease activity score [DAS], tender joint count, and swollen joint count), DAS showed a significant improvement following probiotic treatment with a SMD (95% CI) of - 0.58 (- 0.97 to - 0.19). The number of trials was too small to determine if a strain-, dose-, or duration-response effect was present. Probiotics seem to be less effective in RA; however, to reach a firm conclusion, we need further evidence.
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What OpenQuestion holds
Registered trials
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.