ArticlePediatric rheumatology online journal2025
Lack of HLH in FMF.
Article in Pediatric rheumatology online journal, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- Prediction nomogram of serum interferon-γ enable early identification of macrophage activation syndrome in children with Kawasaki disease.Clinical rheumatology · 2026Article
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Authors and funding
11 authors.
Funding
Abstract
backgroundMacrophage activation syndrome (MAS) is a severe complication of systemic juvenile idiopathic arthritis (sJIA), driven by excessive activation of T cells and macrophages, resulting in a cytokine storm. IFN-γ and IL-18 play crucial roles, with monocyte and macrophage hyperresponsiveness to IFN-γ amplifying MAS-related inflammation. Familial Mediterranean Fever (FMF), an autosomal recessive disease, is characterized by recurrent fever episodes due to MEFV gene mutations. Despite intense inflammation in FMF, MAS is rare. This study aimed to compare in vitro responsiveness of peripheral blood mononuclear cells (PBMCs) to IFN-γ between sJIA/MAS and FMF patients.
methodsFive sJIA/MAS and five FMF patients were included. PBMCs were stimulated in vitro with IFN-γ for 45 min. Levels of IFN-γ-induced chemokines CXCL9, CXCL10, and IL-18 in supernatants were measured using cytometric bead arrays before and after stimulation.
resultsPBMCs from MAS patients produced higher baseline CXCL9 levels compared to FMF patients in a flare, with differences increasing post-IFN-γ stimulation. IFN-γ stimulation also upregulated IL-18 production in MAS patients but not in FMF patients.
conclusionEnhanced responsiveness to IFN-γ distinguishes sJIA/MAS from FMF patients, which may explain the lower occurrence of MAS in FMF.
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