The staining intensity for Ki-67 in tumours isolated from mice that had been treated with vehicle, showed a significantly higher staining score (25.2 ± 1.4) when compared to tumours from mice treated with either the ethanol (17.1 ± 1.2) or the PBS extract of Uncaria tomentosa (17.1 ± 1.6) which were not different from each other (Figure 6). This evidence concerns the gene MKI67 and neoplasm.