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[en] Cytokine gene variations are contributory factors in inflammatory pathology. Allele frequencies of Interleukin-1 receptor antagonist (IL-1Ra) gene intron 2 VNTR were measured in healthy blood donors (healthy control subjects) and patients with angina, myocardial infarction (MI) and acute coronary syndrome(ACS). Patients were classified into three groups: thirty one MI patients, twenty two angina patients and thirteen ACS patients. A1/A2 genotype showed significant resistant factor for angina and myocardial infarction and angina (70.97% vs. 29.03%; p=0.0001, 70.97% vs. 31.82%; p0.0004, respectively). A1/A1 homo zygote was a risk factor in MI and angina (p=0.012; p= 0.0001), Moreover, A1/A3 and A2/A3 heterozygotes were found in MI only (p= 0.025; p= 0.0047, respectively). All genotypes didn't show any effect on ACS patients. In conclusion, the data reflected that A1/A1 homo zygote was considered as a significantly risk factor associated with patients with angina as well as MI patients. But, A1/A2 heterozygote was considered a resistance factor against both diseases.