Mathilde Lambert, Maxime Robin, Lucie Munier, Abdou Beziane, Jean-Louis Mège, Daniel Bertin, Nathalie Bardin
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Prevalence and clinical value of autoantibodies directed against lysobisphosphatidic acid in antiphospholipid syndrome
Objectives To assess the prevalence and clinical significance of autoantibodies against lysobisphophatidic acid (aLBPA) in patients with antiphospholipid syndrome (APS). Methods We conducted a retrospective analysis involving 91 patients with persistent conventional antiphospholipid antibodies (aPL): 60 patients with at least one clinical event of APS (symptomatic group) and 31 without (asymptomatic group), as well as 33 aPL-negative controls. Detection of aLBPA in serum samples was performed using an enzyme-linked immunosorbent assay (ELISA) specifically designed for this study. Results The prevalence of aLBPA is significantly higher in patients with persistent aPL than that of the control group (p< 0.0001). Among patients with persistent aPL, our findings reveal a significantly higher prevalence of aLBPA in asymptomatic patients compared with their symptomatic counterparts (p= 0.027). Notably, patients positive for IgG aPL alone demonstrated a greater likelihood of presenting clinical events suggestive of APS. Conclusion The combined assay of aLBPA and conventional aPL could be used to stratify patients with persistent aPL. This combined approach could serve as a valuable tool in the management of this complex autoimmune disease, particularly in guiding decisions regarding the initiation of primary thromboprophylaxis in asymptomatic patients with persistent aPL.
期刊介绍:
Rheumatology strives to support research and discovery by publishing the highest quality original scientific papers with a focus on basic, clinical and translational research. The journal’s subject areas cover a wide range of paediatric and adult rheumatological conditions from an international perspective. It is an official journal of the British Society for Rheumatology, published by Oxford University Press.
Rheumatology publishes original articles, reviews, editorials, guidelines, concise reports, meta-analyses, original case reports, clinical vignettes, letters and matters arising from published material. The journal takes pride in serving the global rheumatology community, with a focus on high societal impact in the form of podcasts, videos and extended social media presence, and utilizing metrics such as Altmetric. Keep up to date by following the journal on Twitter @RheumJnl.