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Association of galectin-3 in systemic lupus erythematosus: A systematic review and meta-analysis.

Shovit Ranjan·Madhavi Dubey·Aditya K Panda
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Abstract

BackgroundSystemic lupus erythematosus (SLE) is an autoimmune condition showing persistent profiling of inflammation and damage of organs and immune system. Amongst many biomarkers for such autoimmune diseases, Galectin-3 (Gal-3) a &#x3b2;-galactoside-binding lectin responsible for regulation, inflammation, and fibrosis of immune repsonses, has engrossed researchers for further investigations as a potential biomarker. However, correlation has been studied between circulating Galectin-3 levels and SLE but outcomes still remain inconsistent. Therefore, this systematic review and meta-analysis evaluated the association between circulating galectin-3 levels and SLE.Materials and MethodsPubMed, Scopus, ScienceDirect, Web of Science, and Embase databases are extensively used for literature search. The last database search was conducted on September 6, 2025. Eligible studies included case control studies reporting circulating galectin-3 levels in individuals with SLE and healthy controls. Two independent reviewers performed study selection and data extraction. Study quality was evaluated using the Newcastle-Ottawa Scale. Comprehensive Meta-Analysis software was used for statistical analysis. Pooled effect sizes were calculated as mean differences with 95% confidence intervals. Heterogeneity was assessed using the Cochrane Q test and I2 statistics, and publication bias was evaluated using Begg's funnel plot and Egger's regression analysis.ResultsSeven eligible studies were included in the meta-analysis. The pooled results showed that patients with SLE had significantly higher circulating Galectin-3 levels than healthy controls (mean difference = 8.48; 95% CI: 3.84-13.12; p < 0.0001). Substantial heterogeneity was observed across studies (Tau square: 32.57, Q = 196.03; p < 0.0001, I2 = 96.93%). Sensitivity analysis confirmed the stability of the overall findings. Begg's funnel plot and Egger's regression analysis indicated no publication bias among studies. Subgroup analysis supports the results of the overall analysis.ConclusionThis meta-analysis depicts that galectin-3 may serve as a biomarker associated with SLE pathogenesis and inflammatory activity due to significantly elevated levels of circulating galectin-3 levels in patients with systemic lupus erythematosus.

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HumansLupus Erythematosus, SystemicBiomarkersGalectin 3Blood ProteinsGalectinsautoimmune diseasesbiomarkersgalectin-3lupus nephritismeta-analysissystemic lupus erythematosusJournal ArticleSystematic ReviewMeta-Analysis

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Shovit Ranjan, Madhavi Dubey, Aditya K Panda. 2026-07-08. Association of galectin-3 in systemic lupus erythematosus: A systematic review and meta-analysis.. https://doi.org/10.1177/09612033261467987

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Autoimmune Diseases subjectBiomarkers subjectHumans subjectJournal Article subjectJournal Article; Systematic Review; Meta-Analysis resourceMeta-Analysis subjectSystematic reviews study

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