Seventeen potentially eligible patients with gastric carcinoma were enrolled in the study, of which 1, 2, and 5 did not complete their molecular analysis for − 592(A/C) SNP of IL-10, − 590 (C/T) SNP of IL-4, and − 1082 (G/A) SNP of IL-10, respectively, due to absence of amplification band after repeated analyses, which is why for the last case paired analysis 1:1 was established with the group of healthy individuals. Here, IL4 is linked to gastric carcinoma.