NFKB1 and inflammatory bowel disease: While immunohistochemistry staining results also showed that TNBS-induced IBD rats treated with JPQCHSD 19 and 38 g/kg, but not JPQCHSD 9.5 g/kg, showed significantly lower NF-κB p65 protein expression levels compared to TNBS-induced model rats (p < 0.05, Figure 7).