IL17A and Graves ophthalmopathy: Wei et al. reported that Graves’ ophthalmopathy patients had significantly lower levels of miR-146a-5p than controls, and miR-146a-5p was negatively correlated with serum level of IL-17, which had been suggested to be an important pathogenic cytokine in the development of Graves’ ophthalmopathy (33, 34, 137).