The two-sided Mann–Whitney U test was used to identify relationships between the expression of selected miRNA transcripts and the following categorical variables: sex; smoking (never and former smokers vs. current smokers); hypertension; type 2 diabetes; coronary artery disease; myocardial infarction; and medication with statins, acetylsalicylic acid, clopidogrel, beta-adrenergic blockers, angiotensin-converting enzyme inhibitors, Ca2+ channel blockers, fibrates, and micronized diosmin, as well as preparation with hesperidin, Ruscus aculeatus, and vitamin C (refer to Table 1). This evidence concerns the gene ACE and coronary artery disorder.