IL10 and familial dilated cardiomyopathy: Neither B1 cells nor Tr cells were significantly correlated with plasma levels of IL-10 (R = -0.009, P = 0.97; R = 0.242, P = 0.22) and TNF-α (R = -0.031, P = 0.88; R = -0.410, P = 0.06) in patients with DCM (Fig. 5B–E).