IL6 and Miyoshi myopathy: In the association study between IL-6 and MM, the results of IVW method showed that IL-6 had no significant effect on MM (OR= 1.001, 95% CI: 0.999–1.002, P=0.461), and the MR-Egger regression (OR= 1.000, 95% CI: 0.997–1.004, P=0.910).