Abstract
Juvenile-onset systemic lupus erythematosus (jSLE) patients typically have a more severe disease course than adults with SLE. We aimed to assess the prevalence and disease course of jSLE patients carrying MEFV variants. MEFV variant analyses were performed in 44 jSLE patients and effect of these variants on disease severity and course was analyzed by SLEDAI score and SLICC/ACR index. Ten of the patients (22.7%) had a MEFV variant. The median (min–max) SLEDAI score and SLICC/ACR index were 2(0–13) and 0(0–3), respectively. Median age at disease onset, disease duration, SLICC/ACR indexes, SLEDAI scores, clinical and laboratory findings of the patients were comparable in carriers of variants and non-carriers. Nineteen patients (43.2%) had biopsy-proven lupus nephritis and four of these patients had MEFV variants. There was no significant difference between patients with and without MEFV carriers in terms of lupus nephritis. Even though not significant statistically, renal involvement was milder in MEFV carriers than non-carriers. The presence of MEFV variants does not increase the overall susceptibility to jSLE in our cohort, while larger number of patients is required to display the protective role of MEFV variants in jSLE.
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NAA wrote and revised the paper and together with AT interpreted the data and formulated conclusions. MÇ, AP, BS and SGK also wrote the statistical analysis plan, cleaned and analyzed the data, and revised each draft. They also involved with study design and recruitment. All authors approved the final version of manuscript.
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Tanatar, A., Çakan, M., Karadağ, Ş.G. et al. The influence of carrying MEFV gene variants on juvenile systemic lupus erythematosus. Rheumatol Int 41, 157–161 (2021). https://doi.org/10.1007/s00296-019-04420-7
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DOI: https://doi.org/10.1007/s00296-019-04420-7