Fig. 3

Determining extent of infarct 28 days after myocardial infarction reperfusion injury treated with intramyocardial injection. a Masson trichrome images 1920 μm from the apex. Muscle fibers (red), cytoplasm (pink), and collagen from fibrotic tissue (blue). Scale bar represents 1000 μm. Quantification of b infarct size and c left ventricular wall thickness. n = 7–12, error bars represent standard error of the mean and * indicates p < 0.05