Table 1.

Effects of khat extract on serum creatinine and blood urea nitrogen levels

Groups	Serum creatinine (mg/dl)	Blood urea nitrogen (mg/dl)
CON	0.59 ± 0.02	19.92 ± 0.34
K100	0.63 ± 0.02	20.15 ± 0.42
K200	0.66 ± 0.05	20.79 ± 0.40
K400	0.91 ± 0.02a3b3c2	25.94 ± 0.53a3b3c1
GEN	1.24 ± 0.03a3b3c3d3	48.25 ± 0.97a3b3c3d3

Values are mean ± SEM. n = 8; ^acompared to CON; ^bcompared to K100; ^ccompared to K200; ^dcompared to K400. ¹p < 0.05; ²p < 0.01; ³p < 0.001. (CON: control, received Tween80; K100, khat 100 mg/kg; K200, khat 200 mg/kg; K400, khat 400 mg/kg; GEN, gentamicin 100 mg/kg).