“…Histological damage levels were scored as described previously (14,39). Briefly, 50 tubules in the outer medulla of the kidney were analyzed by using a score as follows: 0, no damage; 1, mild damage with rounding of epithelial cells and dilated tubular lumen; 2, severe damage with flattened epithelial cells, loss of nuclear staining, dilated lumen, and congestion of lumen; and 3, destroyed tubules with flat epithelial cells lacking nuclear staining and congestion of lumen.…”