Abstract
Introduction and objectivesThis study is designed to evaluate the potential influences of Mediterranean fever gene (MEFV) gene polymorphism on systemic lupus erythematosus (SLE) in a cohort of juvenile patients. A case–control study was performed on Iranian patients with a mixed ethnicity population. Patients and methodsGenotypes of 50 juvenile cases, and 85 healthy controls were investigated for identifying M694V and R202Q polymorphism. Genotyping was done utilizing amplification refractory mutation system-polymerase chain reaction (ARMS-PCR) and polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) to detect M694V and R202Q mutations, respectively. Main findingsOur study indicates significant differences in the alleles and genotypes frequencies of MEFV polymorphism between SLE patients and healthy controls (P<0.05). Also, an association was found between renal involvement (50% vs. 8.3%, P=0.000, OR=0.91, 95% CI=0.30–0.278) in juvenile SLE patients and M694V polymorphism incident; But there was no association with other clinical manifestations. Principal conclusionWe found a significant association between R202Q and M694V polymorphism of the MEFV gene and susceptibility to SLE in the studied population; However, further studies on detailed characterization of these polymorphisms’ impacts on the key elements responsible for SLE pathogenesis is of great importance.
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