Lupus & antiphospholipid syndrome

Anti-ribosomal-P protein antibodies and systemic lupus erythematosus (SLE): in a cross-sectional study of Danish adult patients with SLE, no significant association is found between anti-ribosomal-P and neuropsychiatric SLE

Lupus Sci MedPublished Cross-sectional study

Authors' conclusion

This study could not confirm a role for anti-Rib-P in the identification of NPSLE. On the other hand, anti-Rib-P was associated with SLE disease activity as well as organ damage.

Study context

Population
Danish adult (≥18 years) patients with SLE meeting the ACR 1997 revised classification criteria, population-based cohort
Participants
198 participants
Outcome
Prevalence of anti-ribosomal-P protein antibodies (anti-Rib-P)
Methodological detailspopulation-based cohort
  • Population-based cohort

Main finding

As reported in the abstract

Anti-Rib-P positive SLE (prevalence)

SLE cohort

7.1%

14 events

Observational data: associations, not effects.

Secondary outcomes

Anti-Rib-P and neuropsychiatric SLE (NPSLE)

Anti-Rib-P positive patients diagnosed with NPSLE: 3 (21% of patients with NPSLE)
No statistically significant association between anti-Rib-P and NPSLE
Mean anti-Rib-P titres did not differ significantly between patients with and without NPSLE

Anti-Rib-P and disease activity (SLEDAI-2K)

Significant association between anti-Rib-P positivity and SLEDAI-2K score

NPSLE and disease characteristics (stepwise logistic regression)

NPSLE associated with SLEDAI-2K and SLICC DI score

Original publication

Anti-ribosomal-P protein antibodies and systemic lupus erythematosus (SLE): in a cross-sectional study of Danish adult patients with SLE, no significant association is found between anti-ribosomal-P and neuropsychiatric SLE. Lupus Sci Med. Published 17 August 2025. doi:10.1136/lupus-2025-001550

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