Fig. 4

Prdx6 differential expression and counting of intracellular viable bacteria after bacterial infection. a Differential MmPrdx6 expression after infection by the avirulent strain of B. suis S2. b MmPrdx6 differential expression after infection by the E. coli standard strain. c MmPrdx6 differential expression after infection by L. monocytogenes. d Differential MmPrdx6 expression after challenge with the inactivated B. suis S2 strain. e Growth kinetics of intracellular viable bacteria at different times post-infection. Statistical analysis was conducted by one-way analysis of variance (ANOVA) using SPSS 13.0 software. * P < 0.05, ** P < 0.01. a: p < 0.05 vs. E. coli-infected group; b: p < 0.05 vs. L. monocytogenes-infected group; c: p < 0.05 vs. 50 h post infection in the S2-infected group; d: p < 0.05 vs. 2 h post infection in the S2-infected group