Relative to sham control mice, PBS‐treated MI model animals presented with a significant increase in the CD68+/iNOS+ macrophage ratio in the infarcted area (Figure 5J,L), together with substantially enhanced IL‐1β (Figure 5M), TNF‐α (Figure 5N), and IL‐10 secretion (Figure 5O). Here, IL1B is linked to myocardial infarction.