The difference of these transcription factors expression in these groups are shown in Table 2.The positive expression rates of c-Rel and p65 in early infection group were significantly higher than those in control group (52.8% vs 29.7%, 61.2% vs 29.7%, χ2 = 5.69310.019; P = 0.017 0.007, respectively). Here, RELA is linked to infection.