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Apolipoprotein A-I mimetic peptide 4F (4F) increases capillary density-to-myocyte area ratio. MI, myocardial infarction; RC, radiocontrast. Representative, double-immunofluorescence images of myocardium stained for endothelial cells [red, Griffonia simplicifolia isolectin B4 (isolectin GS-IB4)] or nuclei (blue, DAPI), together with merged images showing colocalization. Scale bar, 50 µm; magnification, ×400 (n = 7–8/group, ANOVA).
