Astragulus & Angelica mixture enhances nitric oxide production and reduces angiotensin II in the kidney of UUO rats / 中华肾脏病杂志

ABSTRACT

Objective To investigate the therapeutic effects of Astragalus & Angelica (A&A) , the mixture of Chinese herbs, on different vasoconstrictors and vasodilators in the process of renal interstitial fibrosis in rats with unilateral ureteral obstruction (UUO). Methods Wistar rats were randomly divided into Sham,UUO and UAA (UUO+A&A) groups. After administration of A&A (14 g?kg-1?d-1) for 0, 3, 7 and 10 days, the levels of Ang-II , ET-1, nitric oxide(NO) and the activities of different NOS in renal homogenate were measured by RIA or enzyme method. The expression levels of eNOS, nNOS, iNOS were detected in the kidney by immunohistochemistry and semi-quantitively assessed by Western blot. Results After A&A administration, the levels of Ang- II and ET-1 were increased in UUO at all time points (P