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  • Stockfelt, Marit (author)

Plasma interferon-alpha protein levels during pregnancy are associated with lower birth weight in systemic lupus erythematosus.

  • Article/chapterEnglish2024

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  • 2024

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  • LIBRIS-ID:oai:gup.ub.gu.se/338638
  • https://gup.ub.gu.se/publication/338638URI
  • https://doi.org/10.1093/rheumatology/keae332DOI

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  • Language:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

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  • Adverse pregnancy outcomes are more common in women with systemic lupus erythematosus (SLE) compared with healthy women, but we lack prognostic biomarkers. Plasma interferon alpha (IFNα) protein levels are elevated in a subgroup of pregnant women with SLE, but whether this is associated with pregnancy outcomes is unknown. We investigated the relationship between IFNα, adverse pregnancy outcomes and the presence of autoantibodies in SLE pregnancy.We followed 76 women with SLE prospectively. Protein levels of IFNα were quantified in plasma collected in the 2nd and 3rd trimester with single-molecule array. Positivity for antinuclear and antiphospholipid antibodies was assessed during late pregnancy with multiplexed bead assay. Clinical outcomes included the adverse pregnancy outcomes small for gestational age (SGA), preterm birth, and preeclampsia.During SLE pregnancy, women with SGA infants compared with those without had higher levels of plasma IFNα protein, and IFNα positivity was associated with lower birth weight of the infant. Preterm birth was associated with autoantibodies against chromatin. IFNα protein levels associated positively with autoantibodies against chromatin, Smith/ribonucleoprotein (SmRNP) and RNP, but negatively with phospholipid antibodies.Elevated IFNα protein in plasma of women with SLE is a potential risk factor for lower birth weight of their infants. The association between IFNα and lower birth weight warrants further investigation regarding the pathophysiological role of IFNα during SLE pregnancy.

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  • Torell, Agnes (author)
  • Gunnarsson, Iva (author)
  • Svenungsson, Elisabet (author)
  • Zickert, Agneta (author)
  • Majcuk Sennström, Maria (author)
  • Trysberg, Estelle (author)
  • Bengtsson, Anders A (author)
  • Jönsen, Andreas (author)
  • Strevens, Helena (author)
  • Sjöwall, Christopher (author)
  • Saleh, Muna (author)
  • Pihl, Sofia (author)
  • Leonard, Dag (author)
  • Rönnblom, Lars (author)
  • Akhter, Tansim (author)
  • Blennow, Kaj (author)
  • Zetterberg, Henrik (author)
  • Jacobsson, Bo,1960Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för obstetrik och gynekologi,Institute of Clinical Sciences, Department of Obstetrics and Gynecology(Swepub:gu)xjacbo (author)
  • Lundell, Anna-Carin (author)
  • Rudin, Anna (author)
  • Göteborgs universitetInstitutionen för kliniska vetenskaper, Avdelningen för obstetrik och gynekologi (creator_code:org_t)

Related titles

  • In:Rheumatology (Oxford, England)1462-0332

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