Fig. 5.

Apolipoprotein A-I mimetic peptide 4F (4F) decreases apoptosis in the heart after myocardial infarction (MI). Representative micrographs from terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate nick-end labeling (TUNEL) assays, showing nuclei (DAPI, blue), TUNEL signals (green), and merged images of myocardium tissue in all groups. All studies were performed 24 h after sham procedure or MI induction. Scale bar, 50 µm; magnification, ×400. Quantitative analysis of apoptosis is shown (n = 7–8/group, ANOVA).