MRC1 and Miyoshi myopathy: Both the relative expression of CCL3 mRNA and the CD206 expression scores of M2 macrophages were significantly higher in MM patients (1.741 ± 0.122, 1.084 ± 0.119) compared to healthy donors (1.01 ± 0.037, 0.262 ± 0.038) (Fig. 1D-E, G).