MMP9 and neoplasm: In the açaí treatment group, the histopathological of the liver revealed the presence of centrilobular veins and cords of hepatocyte with normal liver tissue (Fig. 5e), and the kidney showed the presence of numerous glomeruli and apparent distal tubules with preserved tissue (Fig. 5f). Raw data from tumor volume and weight, ELISA (PGE2, IL-10 and VEGF) and morphometric quantification (VEGF, VEGFR-2, MMP-9 and COX-2) are available in Additional file 1.