The effects of YSL plus mid-dose doxorubicin on the weight of nude mice bearing human hepatocellular carcinoma BEL-7402 tumors. BEL-7402 cell (1 × 107/every mouse) was subcutaneously inoculated into the right back of every nude mouse. When the tumors had reached an average volume of 100 mm3, the tumor-bearing nude mice were randomly divided into different groups (n = 12). Drugs delivered by i.p. injection for 30 days successively. We weighted every group mice by electronic balance every 3 day and recorded the weight. Data points represent mean body weight ± SD. ADM, doxorubicin or adriamycin; YSL, tripeptide tyroserleutide.