Serum interferon-alpha predicts in-hospital mortality in patients hospitalised with acute severe lupus

Autor: Liza Rajasekhar, Keerthi Vardhan Yerram, Ritasman Baisya, Phani Kumar, Rammohan Mylavarapu
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Lupus Science and Medicine, Vol 10, Iss 2 (2023)
Druh dokumentu: article
ISSN: 2053-8790
DOI: 10.1136/lupus-2023-000933
Popis: Objectives Dysregulation of interferon-alpha (IFN-α) is considered central to the immunological abnormalities observed in SLE. Short-term mortality during high disease activity in lupus is up to 30%. Adenovirus vector-introduced IFN-α into a lupus-prone mouse causes the development of glomerulonephritis and death within weeks. We studied serum IFN-α as a biomarker of in-hospital mortality in patients of SLE with high disease activity.Methods Serum IFN-α (ELISA) was measured in patients hospitalised for acute severe lupus in a tertiary care rheumatology unit in India and the levels were compared between survivors and non-survivors. Serum IFN-α was compared with traditional clinical and serological markers associated with disease activity to assess which better prognosticates survival.Results In a cohort of 90 patients with a mean Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) of 19.3 (±5.5), the mean serum IFN-α was 88±144 pg/dL. Levels were undetectable in patients with inactive disease. SLEDAI, anti double stranded DNA (dsDNA) antibody titres and serum IFN-α levels were higher and serum complement (C3) lower in non-survivors (p=0.003, p=0.017, p
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