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The bar graphs show the grade of renal tubule injury and fibrosis at day 28, determined from pathological tissue specimens. Error bars represent the range of the median. There is a statistical difference in NO and H2O2 concentrations in the kidney at 12 h (P < 0.001) and 24 h (P < 0.050) between the mild and severe AKI groups. *p < 0.050, ***p < 0.001.
