Fig. 1. The effect of citrulline on the survival time of irradiated mice (color online)

Fig. 2. The effect of citrulline on the body weight of irradiated mice

Fig. 3. HE staining of the intestinal tissue from irradiated mice and citrulline-treated mice (×200)

Fig. 4. Endotoxin content in the plasma of irradiated mice and the mice treated with intraperitoneal injection of citrulline

Fig. 5. The content of NO and iNOS in the intestinal tissue of irradiated mice

Fig. 6. The changes of FAK and Occludin expression in the intestinal tissue of irradiated mice