ELISA was used to assess the serum levels of IL-17 from peripheral blood of MM patients and healthy donors, the secreted IL-17 was significantly higher in the incipient and relapsed MM patients than those from healthy donors (153.66 ± 34.01 vs. 60.67 ± 24.90 pg/ml, p < 0.001; 150.47 ± 46.90 vs. 60.67 ± 24.90 pg/ml, p < 0.001; Figure 3A), but there was no significant difference between the incipient and relapsed MM patients (153.66 ± 34.01 vs. 150.47 ± 46.90 pg/ml, p > 0.05), which is consistent with the levels of Th17 shown in the Figure 2H. This evidence concerns the gene IL17A and Miyoshi myopathy.