Beihui et al. as well as Li et al. have demonstrated that the levels of Th17 cell-related cytokines [IL-6, IL-17 and IL-23) in serum and in liver tissue were increased in experimental animal models of NASH-induced disease compared to a healthy group, but they have not analyzed differences between serum and liver tissue levels [56,57]. Here, IL6 is linked to metabolic dysfunction-associated steatohepatitis.