title: Higher level of IL-6 in Jaccoud's arthropathy secondary to systemic lupus erythematosus: a perspective for its treatment?
abstract: Jaccoud's arthropathy (JA) is a condition characterized clinically by 'reversible' joint deformities along with an absence of articular erosions on a plain radiograph. The main clinical entity associated with JA is systemic lupus erythematosus (SLE) with a prevalence of around 5 %. The aim of the present study was to compare the inflammatory markers including cytokine levels in blood of SLE patients with and without JA. Patients with diagnosis of SLE as defined by ACR criteria were screened and divided in two groups, one with JA and one control group without JA. Erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), complement C3 and C4 levels antinuclear antibodies (ANA), anti-dsDNA antibodies and serum levels of IL-2, IL-6, IL-10, IL-21, IL-22 and TNF-α were determined in all patients. Eighty female patients with SLE, 18 (22.5 %) with JA and 62 (77.5 %) without JA, were included in this study. JA patients had higher disease duration (p = 0.008), ESR (p < 0.001), CRP level (p = 0.002), ANA titer (p < 0.001) and dsDNA antibody level (p = 0.009). The serum levels of IL-2, IL-10, IL-21, IL-22 and TNF-α were not significantly different between the two groups (p > 0.05), but the level of IL-6 was higher in JA group (p < 0.001). The serum level of IL-6 might have a correlation with JA secondary to SLE.
authors.affiliation: Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal da Bahia, Salvador, Bahia, Brazil.
authors.forename: Ajax Mercês
authors.initials: AM
authors.lastname: Atta
authors.forename: Rodrigo C
authors.initials: RC
authors.lastname: Oliveira
authors.forename: Isabela S
authors.initials: IS
authors.lastname: Oliveira
authors.forename: Mariana P
authors.initials: MP
authors.lastname: Menezes
authors.forename: Taciana P S
authors.initials: TP
authors.lastname: Santos
authors.forename: Maria Luiza B
authors.initials: ML
authors.lastname: Sousa Atta
authors.forename: Mittermayer B
authors.initials: MB
authors.lastname: Santiago
mesh_terms: D000328:Adult; D015415:Biomarkers / Q000097:blood; D016207:Cytokines / Q000097:blood; D005260:Female; D006801:Humans; D015850:Interleukin-6 / Q000097:blood*; D007592:Joint Diseases / Q000097:blood* / Q000209:etiology*; D008180:Lupus Erythematosus, Systemic / Q000097:blood / Q000150:complications*; D008875:Middle Aged
chemical_list: D015415:Biomarkers; D016207:Cytokines; D015850:Interleukin-6