objective: barberry root extract contains various alkaloids that are considered as antioxidants. beneficial effect of aqueous extract of berberis integerrima root (aebir) was evaluated for renal function in diabetic rats induced by stz. material and methods: diabetes was induced by i.p. injection of streptozotocin (65 mg/kg bw) to rats, after 15 h of fasting. diabetic rats were randomly grouped...