Lupus & antiphospholipid syndrome

Prevalence and clinical value of autoantibodies directed against lysobisphosphatidic acid in antiphospholipid syndrome

Rheumatology (Oxford)Published Retrospective cross-sectional study

Authors' conclusion

The combined assay of aLBPA and conventional aPL could be used to stratify patients with persistent aPL.

Study context

Population
Patients with persistent conventional aPLs and aPL-negative controls91 with persistent aPL
Participants
60 / 31 / 33
Exposure
Persistent aPL vs aPL-negative controls
  • Symptomaticn = 60
  • Asymptomaticn = 31
  • Controlsn = 33reference
Outcome
Prevalence of against lysobisphophatidic acid (aLBPA)
Methodological detailsin-house enzyme-linked immunosorbent assay (ELISA)
  • In-house ELISA

Main finding

As reported in the abstract

  • Persistent aPL vs Controls: P < 0.0001
  • Asymptomatic vs Symptomatic: P = 0.027

Observational data: associations, not effects.

Further findings

Clinical events suggestive of APS by aPL isotype

Patients positive for IgG aPL alone had a greater likelihood of clinical events suggestive of APS

Original publication

Prevalence and clinical value of autoantibodies directed against lysobisphosphatidic acid in antiphospholipid syndrome. Rheumatology (Oxford). Published 23 October 2024. doi:10.1093/rheumatology/keae588

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