Figure 2: Genetic deletion of sEH ameliorates the UUO-induced hydronephrosis. (a) At 3, 7, and 14 days after UUO surgery, mice were euthanized by CO2 and kidneys were photographed. (b) The ratio of kidney weight and body weight. Data are mean ± SEM from 8 mice. versus WT nonobstructed kidney; versus WT UUO kidney.