MAPK4 and Miyoshi myopathy: We examined six groups of MM cell models: circ_0000190 over-expression, circ_0000190 over-expression+miR-767-5p mimics, circ_0000190 over-expression+miR-767-5p mimics+MAPK4 over-expression, sh-circ_0000190, sh-circ_0000190 + miR-767-5pinhibitor, sh-circ_0000190 + miR-767-5pinhibitor + sh-MAPK4.