Biochemical parameters including serum creatinine (Scr) (a) and blood urea nitrogen (BUN) (b) in each group of mice. c Representative photomicrographs of the H&E staining and Masson’s trichrome staining from left kidneys of control, UUO, UUO + 15d-PGJ2, UUO + 15d-PGJ2 + GW9662 mice (H&E and Masson staining; scale bar, 100 µm; magnification, ×200). *P < 0.05, **P < 0.01, ***P < 0.001 (compared with control group); #P < 0.05, ##P < 0.01 (compared with UUO group)