Figure 4: Effect of irbesartan and pioglitazone on renal blood flow in diabetic rats: a) Doppler ultrasound record of renal blood flow in normal rats. b) Doppler ultrasound of renal blood flow in diabetic rats. c) Doppler ultrasound of renal blood flow in irbesartan (30mg/kg/day) treated group. d) Doppler ultrasound of renal blood flow in pioglitazone (30mg/kg/day) treated group. e) Doppler ultrasound of renal blood flow in irbesartan (30mg/kg/day) + pioglitazone (30mg/kg/day) treated group. f) Doppler ultrasound of renal blood flow in irbesartan (5mg/kg/day) + pioglitazone (15mg/kg/day) treated group.