In the liver tissue of rats with endotoxemia, the level of NF-κB (254 ± 10.5 pg/mg of proteins) was significantly increased compared to the values of animals belonging to the control group (29.8 ± 9.3 pg/mg of proteins) (p < 0.001) (Figure 1A). Here, NFKB1 is linked to serum lipopolysaccharide activity.