Figure 1.

Effect of extracts alone (Figure 1A) or NGZ (Figure 1B) on percentage of protection against DOX-induced cytotoxicity in H9c2 cells. Cells were pretreated with different concentrations of NGZ for 4 hr before exposure to 5 µM of DOX for 24 hr. Data are expressed as mean ± SEM of three separate experiments. DOX decreased cell viability to 62.2±2 P<0.001 versus control.*P<0.05, **P<0.01 and ***P<0.001 versus DOX