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Peak intensities of biomarkers in rat serum and urine samples. The y-axis shows a specific metabolite’s peak intensity. n = 8, *P < 0.05, **P < 0.01, emodin (group II) versus control (group I); #P < 0.05, ##P < 0.01, emodin + DMY (group III) versus emodin (group II).
