Figure 6.

Anti-tumor activity of bamboo leaf extracts. Tumor growth (A), and survival curves (B), for S-180-bearing ddY mice fed with the whole extract. (C) A comparison of anti-tumor activity between vigorous extraction and conventional hot-water extraction in S-180-bearing ddY mice. ddY mice were inoculated with 2 × 10⁶ S-180 cells. (A) Anti-tumor activity of the control die and of the diets containing bamboo leaf extracts added at 0.05% (open square), 0.1% (closed triangle) or 0.5% (open diamond). Values are means ± SD. *P < 0.05 and **P < 0.01 versus controls. The arrow indicates the starting point of feeding the diet containing the extracts. (B) Survival curves for the control diet and the diets containing bamboo leaf extracts at 0.05, 0.1 or 0.5%. Numbers of tumor free mice after treatment were (tumor free/tumor). (C) Anti-tumor activity of the control diet (closed circle) and of diets containing bamboo leaf extract (at 0.1%) produced via the conventional hot-water method (open triangle) or the vigorous extraction method (closed triangle). **P < 0.01 versus the control. (D) Dose response on tumor size on day 32 (left) and survival on day 100 (right).