Figure 1

Expression of NF-κB1 in gastric cancer tissues. A. The staining results were shown. NF-κB1 (brown) is mainly expressed in cytoplasm of gastric adenocarcinoma tissue. (a) The patients’ genotype was GG. Dark brown NF-κB1 cytoplasm staining was observed. (b) The patients’ genotype was AA. NF-κB1 immunohistochemical staining of AA group exhibited faint. (c) The patients’ genotype was GA. NF-κB1 immunohistochemical staining was also faint. Left panels magnification, ×200; Right panels magnification, ×400. B. Differences in NF-kappaB1 expression between different groups were invcestigated using Kruskal-Wallis non-parametric test. The immunohistochemistry PI of NF-κB1 expression for GG group was significantly higher than those of GA group and AA group (P < 0.01). ***P < 0.01, **P < 0.05.