There were no statistically significant difference between the plasma levels of TNF-α in the group with no previous MI, the anterior MI and the posterior/inferior MI groups (4.48 ± 2.93, 6.63 ± 4.41 and 4.38 ± 1.78 pg/ml, p = 0.322) (Fig. 1A). The gene discussed is TNF; the disease is myocardial infarction.