Lupus & antiphospholipid syndrome

Low serum lipocalin-2 in pregnant women with systemic lupus erythematosus

Clin Exp RheumatolPublished Prospective cohort study

Authors' conclusion

In a population of SLE women with low disease activity we have not found evidence that serum LCN2 levels predict disease activity or adverse pregnancy outcomes.

Study context

Population
Pregnant women with systemic lupus erythematosus (SLE) (quiescent disease), rheumatoid arthritis (RA) and healthy pregnancies; serum sampled preconception, each trimester, and 6 weeks, 6 months and 12 months postpartum
Participants
25 / 27 / 18
Exposure
SLE pregnancies vs RA and healthy pregnancies
  • SLEn = 25
  • RAn = 27
  • Healthyn = 18reference
Outcome
Serum LCN2 levels
Methodological detailsseven sampling time points (preconception to 12 months postpartum), t-test at each time point, linear mixed effects model
  • Seven sampling time points (preconception to 12 months postpartum)
  • T-test at each time point
  • Linear mixed effects model

Main finding

As reported in the abstract

Serum LCN2 levels throughout pregnancy
  • Significantly lower serum LCN2 throughout pregnancy in SLE with quiescent disease vs RA and healthy pregnancies

Observational data: associations, not effects.

Further findings

Association of serum LCN2 with disease activity or adverse pregnancy outcome in SLE

No association found

Original publication

Low serum lipocalin-2 in pregnant women with systemic lupus erythematosus. Clin Exp Rheumatol. Published 11 October 2022. doi:10.55563/clinexprheumatol/stfxbj

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