There were no statistically significant differences between the plasma levels of IL-1β in the group with no previous MI, the anterior MI and the posterior/inferior MI groups (4.15 ± 2.64, 4.62 ± 3.83 and 4.46 ± 2.86 pg/ml, p = 0.977) (Fig. 1B). Here, IL1B is linked to myocardial infarction.