CCR2 and dilated cardiomyopathy: Important research conducted by Bajpai G. et al. [50] determined the composition of macrophages in the human heart: in biopsy samples of the myocardium obtained during transplants from patients with ischemic and dilated cardiomyopathy, populations of CCR2− and CCR2+ macrophages were discovered, along with CCR2+ monocytes.