NLRP3 and infection: The p-p65, AP-1, NLRP3 and Caspase-1 protein expression levels were upregulated in the control group compared to those in the control group, while the p-p65, AP-1, NLRP3 and Caspase-1 protein expression levels were decreased in the probenecid group and the baicalin groups compared to those in the infection group (p < 0.05) (Figure 4B, C, D, E, G, H, J, K).