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Semiquantitative injury score for outer medullary tubular injury (% tubular cast-positive region; A), fibrosis (% α-SMA-positive region; B), and macrophage infiltration (no. of ED-1-positive cells/×20 frame; C) in SC (n = 7) and UC (n = 7) kidneys from ANG II (5 ng·kg−1·min−1)+l-NAME (1.4 μg·kg−1·min−1)-infused rats and kidneys from saline-infused sham rats (n = 7). Values are means ± SE. *P < 0.05 vs. kidneys from sham rats.
