“…Images were captured using a confocal microscope (Nikon, Tokyo, Japan). Tubular injury in PAS-stained sections was assessed and scored at a ×200 magnification using 10 randomly selected fields for each kidney as follows: 0, 0%; 1, ≤10%; 2, 11-25%; 3, 26-45%; 4, 46-75%; and 5, 76-100% [18]. For IHC staining, the sections were incubated with primary antibodies against kidney injury molecule-1 (Kim-1; Abcam, Cambridge, MA, USA), neutrophil gelatinase-associated lipocalin (NGAL; Santa Cruz Biotechnology, Santa Cruz, CA, USA), 4-hydroxynonenal (4-HNE; Abcam), galectin-3 (Abcam), α-smooth muscle actin (α-SMA; Sigma-Aldrich), or collagen I (Abcam) overnight at 4 • C and then probed with a secondary antibody for 30 min at room temperature.…”