FIG. 4.
Time-dependent effect of NCX 972 and MTZ against E. histolytica trophozoites. Both drugs (5 μM) were incubated for 6 to 72 h. Data are expressed as percent inhibition and each point represents the mean ± SEM (error bars). Two-way ANOVA followed by Bonferroni's test was used to determine the significant differences: not significant between NCX 972 and MTZ at 6-h treatment; P < 0.01 between NCX 972 and MTZ at 24-h treatment; P < 0.001 between NCX972 and MTZ at 48-h or 72-h treatments. For further details see the text.