Using Western blot at 10 weeks post-DCM, we detected a significant decrease in the levels of the 50 and 55 kDa isoforms of CX3CR1 in DCM mice receiving CX3CR1-Ab (Ab) compared to those which received saline (saline, Figure 7A, n = 6/group), confirming successful attenuation of the CX3CR1 protein. The gene discussed is CX3CR1; the disease is familial dilated cardiomyopathy.