title: Protective effects of quercetin and hyperoside on renal fibrosis in rats with unilateral ureteral obstruction.
abstract: Prevention of renal fibrosis is an important therapeutic strategy in the treatment of obstructive nephropathy. The purpose of the present study was to identify whether the combination of two natural plant-derived flavanoids, quercetin and hyperoside (QH), could inhibit renal fibrosis in the model of unilateral ureteral obstruction (UUO) in rats. QH mixtures (1:1) were fed to Wistar rats, and UUO ligation was performed on all the rats with the exception of the sham group. Masson's trichrome staining was used for interstitial fibrosis, while immunohistochemistry and western blot analysis were used to detect the expression of α-smooth muscle actin (SMA) and fibronectin (FN). In the QH group, the expression of SMA and FN was significantly lower than that in the untreated UUO group. In addition, QH administration significantly inhibited the SMA and FN expression of mesangial cells induced by interleukin-1β. Consequently, it was evident that combinational QH therapy prevented UUO-induced renal fibrosis. Based on these findings, the combinatorial intervention of phytomedicine may present an improved treatment strategy for renal fibrotic disease.
authors.affiliation: Department of Urology, Shanghai Tenth People's Hospital, Tongji University, Shanghai, P.R. China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Yan
authors.affiliation: Department of Nephrology, Nanjing University Affiliated Drum Tower Hospital, Nanjing, Jiangsu, P.R. China.
authors.forename: Yuan
authors.initials: Y
authors.lastname: Feng
authors.affiliation: Department of Urology, Shanghai Tenth People's Hospital, Tongji University, Shanghai, P.R. China.
authors.forename: Wei
authors.initials: W
authors.lastname: Li
authors.affiliation: Department of Urology, Shanghai Tenth People's Hospital, Tongji University, Shanghai, P.R. China.
authors.forename: Jian-Ping
authors.initials: JP
authors.lastname: Che
authors.affiliation: Department of Urology, Shanghai Tenth People's Hospital, Tongji University, Shanghai, P.R. China.
authors.forename: Guang-Chun
authors.initials: GC
authors.lastname: Wang
authors.affiliation: Department of Urology, Shanghai Tenth People's Hospital, Tongji University, Shanghai, P.R. China.
authors.forename: Min
authors.initials: M
authors.lastname: Liu
authors.affiliation: Department of Urology, Shanghai Tenth People's Hospital, Tongji University, Shanghai, P.R. China.
authors.forename: Jun-Hua
authors.initials: JH
authors.lastname: Zheng
keywords: experimental; fibrosis; hyperoside; obstructive nephropathy; quercetin