Lithospermic acid B isolated from Salvia miltiorrhiza ameliorates ischemia/reperfusion-induced renal injury in rats.

The present study was designed to examine whether lithospermic acid B (LSB) isolated from Salvia miltiorrhiza has an ameliorative effect on renal functional parameters in association with the expression of aquaporin 2 (AQP 2) and Na,K-ATPase in the ischemia-reperfusion induced acute renal failure (ARF) rats. LSB showed strong antioxidant activity against production of reactive oxygen species (ROS), ROS-induced hemolysis, and production of lipid peroxide in a dose-dependent manner. Polyuria caused by down-regulation of renal AQP 2 in the ischemia-reperfusion induced ARF rats was partially restored by administration of LSB (40 mg/kg, i.

Effects of Cudrania tricuspidata water extract on blood pressure and renal functions in NO-dependent hypertension.

A pharmacological inhibition of nitric oxide synthase (NOS) in rats for 4-6 weeks produces renal vasoconstriction, renal dysfunction, and severe hypertension. The present study was aimed at investigating whether Cudrania tricuspidata (C. tricuspidata) water extract ameliorates N(G)-Nitro-L-arginine methylester (L-NAME)-induced hypertension.