Fig. 4.

Comparison of infarct sizes among the groups. A No group showed significant difference with regard to echocardiographic measurements of infarct size at day 1 post-MI. B Only CS-exposed MI male group showed significantly larger infarcted area in the heart tissue at day 7 post-MI compared to their CS-naïve counterpart. N = 8 (MIF), 6 (MIM), 8 (SMIF), and 6 (SMIM). MI myocardial infarction, MIF MI female group, MIM MI male group, SMIF smoking MI female group, SMIM smoking MI male group. p ≤ 0.01 (**); t test