Fig. 6
From: Ferumoxytol-enhanced cardiovascular magnetic resonance detection of early stage acute myocarditis
Immunohistochemistry for macrophages Macrophage were detected as CD68 positive cells and visualized with DAB substrate. Macrophage infiltration in the myocardium was confirmed both at Day 21 (a) and Day 14 (b) but not in Control (c). Dual staining of iron particles (Prussian blue) and macrophages (DAB) shows their different distributions between 24 h (d) and 6 h (e) post-ferumoxytol injection