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KRH-594, a new angiotensin AT1 receptor antagonist, ameliorates nephropathy and hyperlipidaemia in diabetic spontaneously hypertensive rats. 2000
1. We examined whether KRH-594, a new angiotensin AT1 receptor antagonist, ameliorates the progression of diabetic nephropathy and hyperlipidaemia in streptozotocin (STZ)-induced diabetic unilateral nephrectomized spontaneously hypertensive rats (DM-1K-SHR) or not. 2. The oral administration of KRH-594 (3 and 10 mg/kg per day) and candesartan cilexetil (1 mg/kg per day) for 16 weeks significantly reduced systolic blood pressure, urinary albumin and urinary total protein in DM-1K-SHR. 3. In a histological study, KRH-594 (3 and 10mg/kg per day) and candesartan cilexetil (0.3 and 1 mg/kg per day) dose-dependently improved glomerulosclerosis and the hyalin cast of tubules in DM-1K-SHR kidneys. Both KRH-594 (10 mg/kg per day) and candesartan cilexetil (0.3 and 1 mg/kg per day) dose-dependently inhibited cardiac hypertrophy. 4. KRH-594 (3 and 10 mg/kg per day), but not candesartan cilexetil, dose-dependently reduced the levels of triglyceride, total cholesterol and phospholipids in DM-1K-SHR. 5. These results suggest that KRH-594 improves diabetic complications, such as nephropathy and hyperlipidaemia, with hypertension.
