ACE and myocardial infarction: Mean tissue ACE activity in the LV anterior wall of the MI group (124.1 ± 15.2 pmol/min/mg) was about five times higher than that in the remote inferior wall (29.5 ± 2.6 pmol/min/mg, p < 0.05) or in the LV of the sham operated group (24.4 ± 1.3 pmol/min/mg, p < 0.05) (Figure 4A).