IL6 and rheumatoid arthritis: IL-6, IL-17, and IL-10 levels were higher in RA patients than in HCs and IL-17 and IL-10 were positively correlated with DAS28 score, suggesting that these cytokines can serve as markers for disease outcome and inflammatory response (Ge et al., 2015; Marwa et al., 2017; Dhaouadi et al., 2018).