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  Indian J Med Microbiol
 

Figure 1: Trypan blue staining in Madin-Darby Bovine Kidney cells after exposure to khat extract for 16 h examined by inverted microscope; 0 mg/ml are viable (negative for trypan blue) (a), 0.6 mg/ml has nonsignificant very few dead cells (take trypan blue) (b), 1.25 mg/ml has significant dead cells (take trypan blue) (c), the number of dead cells are very marked in concentrations: 1.25 mg/ml (d) and 2. 5 mg/ml (e) (×200). The khat-treated group was compared to the control group (f ) (*P < 0.05, **P < 0.01; n = 3)

Figure 1: Trypan blue staining in Madin-Darby Bovine Kidney cells after exposure to khat extract for 16 h examined by inverted microscope; 0 mg/ml are viable (negative for trypan blue) (a), 0.6 mg/ml has nonsignificant very few dead cells (take trypan blue) (b), 1.25 mg/ml has significant dead cells (take trypan blue) (c), the number of dead cells are very marked in concentrations: 1.25 mg/ml (d) and 2. 5 mg/ml (e) (×200). The khat-treated group was compared to the control group (f ) (*<i>P</i> < 0.05, **<i>P</i> < 0.01; <i>n</i> = 3)