Survival studyKunming mice were injected in the right flank with 1 × 107H22cells/mL. After tumor growth to about 4–6 mm in diameter, micebearing H22tumors were grouped (n = 8.) as follows: (1) Salinecontrol; (2) 5-FU, 2.0 mg/kg/d; (3) Cytoxan, 3.6 mg/kg/d; (4); Sege-toside I, 5 mg/kg/d; (5) Segetoside I, 2.5 mg/kg/d; and (6) SegetosideI, 1.25 mg/kg/d. The different samples were administered intraperi-toneally throughout the entire experimental period. The survivaltime of the mice was observed to evaluate the life- prolonging effectof the different samples.