CagA+ H pylori infection is associated with polarization of T helper cell immune responses in gastric carcinogenesis

Figure 3 A representative of real time RT-PCR for IFN-γ and IL-4 mRNA expression in PBMCs by agarose gel electrophoresis. Using the real time PCR products to run agarose gel electrophoresis is to confirm the size of every fragment. M: DNA marker, and the molecular weight of IL-4, IFN-γ and β-actin was 189 bp, 182 bp and 89 bp, respectively.