Fig. 1From: Composition and cytotoxic and antioxidant activities of the oil of Piper aequale VahlCell death pattern by differential staining with ethidium bromide/acridine orange, after 72 h of treatment with the oil of P. aequale. Doxorubicin was used as a positive control. Bars represent the mean ± standard error of mean of three independent experiments. *** P < 0.001 compared with the negative control by 2way ANOVA, followed by Bonferroni testBack to article page