SynthesisRMD open2023
Rheumatoid factor isotypes in rheumatoid arthritis diagnosis and prognosis: a systematic review and meta-analysis.
Synthesis in RMD open, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.
What it found
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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
21 citing papers in PubMed, 1 synthesis or guideline pooled it, 40 citations in OpenAlex.
- Diagnostic accuracy of the neutrophil-to-lymphocyte ratio and the platelet-to-lymphocyte ratio in rheumatoid arthritis: a systematic review and meta-analysis.Clinical and experimental medicine · 2024Pooled it
- Trial
- Synovial microenvironment and fluorescence imaging for early rheumatoid arthritis diagnosis.Journal of pharmaceutical analysis · 2026Review
- MMP3C v2: a network-based framework decoding metabolic plasticity in rheumatoid arthritis, enabling accurate diagnosis and uncovering cell-type-specific metabolic rewiring.Briefings in bioinformatics · 2026Article
- [Quality management in the rheumatology laboratory].Zeitschrift fur Rheumatologie · 2026Article
- Novel involvement of LMTK2 and EML6 in rheumatoid arthritis: potential biomarkers for disease activity and seronegative patients.Frontiers in immunology · 2026Article
- Immunological profiling of rheumatoid factor-positive primary Sjögren's syndrome by single-cell RNA sequencing.Frontiers in immunology · 2026Article
- Nanobiosensors for Rheumatoid Arthritis Biomarkers: Advances and Clinical Translational Potential.International journal of nanomedicine · 2026Review
- Rheumatoid factor and anti-citrullinated protein IgA antibodies in the diagnosis, prognosis and monitoring of patients with rheumatoid arthritis.Journal of translational autoimmunity · 2025Review
- Targeting the Neonatal Fc Receptor in Autoimmune Diseases: Pipeline and Progress.BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy · 2025Review
- Animal Models in Rheumatoid Arthritis: Is There a Correlation Between Autoantibodies in Human Pathology and Animal Models?Biology · 2025Review
- Comparative analysis of clinical profile, therapeutic management, and clinical prognosis of patients with seropositive or seronegative rheumatoid arthritis following the introduction of a first targeted therapy in a real-life setting.Clinical rheumatology · 2025Article
- Rheumatoid Factor: Diagnostic and Prognostic Performance and Therapeutic Implications in Rheumatoid Arthritis.Journal of clinical medicine · 2025Review
- Anti-myeloperoxidase IgM B cells in anti-neutrophil cytoplasmic antibody-associated vasculitis.Nature communications · 2025Article
- Mass spectrometry-based analysis of rheumatoid factor.Frontiers in immunology · 2025Article
- Digital PCR-Based Assessment of Piwi-RNA PIR35982 as a Supporting Biomarker in Rheumatoid Arthritis.Journal of inflammation research · 2025Article
- Integrating clinical features, inflammatory markers, and immune profiles: a Yunke-based nomogram model for rheumatoid arthritis prognosis.Frontiers in medicine · 2025Article
- B cell development: transcriptional regulation and immunological mechanisms in homeostasis.Frontiers in immunology · 2025Review
- Exploring the Link between Hydrodynamic Size and Immunoglobulins of Circulating Immune Complexes in Rheumatoid Arthritis Patients.International journal of molecular sciences · 2024Article
- Autoantibodies Serum Level and 10-Year Risk of Fractures Evaluated by FRAXOpen access rheumatology : research and reviews · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 7 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveThe first biomarker associated with the rheumatoid arthritis is rheumatoid factor (RF) and since the earliest reports a role has been proposed in the diagnosis and in the prediction of clinical features and outcome. The study of RF isotypes has further attempted to improve diagnostic accuracy and identify specific subgroups of patients. The main objective of this study is to provide an analysis of the literature on the role of RF isotypes in the diagnosis and prognosis of rheumatoid arthritis (RA).
methodsWe performed a systematic literature review and meta-analysis on the role of RF isotypes in RA (only in English, from PubMed, search terms: "rheumatoid factor isotypes", "diagnosis", "prognosis" and "rheumatoid arthritis", last search 31 July 2022, two independent assessment of quality and biases, results included in tables and in the meta-analysis).
resultsThirty-six articles were examined (7517 patients). Testing all RF isotypes with latex test or nephelometry allows for the highest sensitivity (68.6%, 95% CI 66.2% to 71.0%); nonetheless, the determination of IgA isotype provides the highest specificity (91.4%, 95% CI 90.8% to 92.0%) and the highest positive likelihood ratio (7.7, 95% CI 5.7 to 10.4). When testing IgM isotype the highest diagnostic OR (21.7, 95% CI 16.1 to 29.3) is reached. When analysing anti-citrullinated protein antibodies, RF isotype determination increases diagnostic accuracy. On the other hand, these do not provide relevant prognostic information, as results are conflicting.
conclusionsTesting RF allows the highest sensitivity, while IgA isotype the highest specificity and positive likelihood ratio for RA diagnosis. On the other hand, determination of RF isotypes dose not allow prognostic information, as data are limited and heterogeneous.
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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 Socratic graph.