CD19 and Miyoshi myopathy: The mean fluorescence intensity (MFI) of the IL-10 expression in CD19+CD24hiCD38hi Bregs was significantly higher in Ps patients: median = 527 (range = 248–1014) as compared with HVs: median = 271 (range = 154–579; p < 0.0001), and patients with MM: median = 297 (range = 12–707; p < 0.0001).