CRP and infection: The systolic blood pressure (73 ± 2.9 vs. 118.5 ± 3.9 mmHg, p < 0.01) and diastolic blood pressure (41 ± 3.1 vs. 74.8 ± 2.6 mmHg, p < 0.01) of the AKI patients were both lower (Figure 6c), and the serum C reactive protein (CRP), a marker of infection, was markedly increased (122.7 ± 12.6 vs. 6.6 ± 0.6 mg/L, p < 0.01) compared to those in the healthy volunteers (Figure 6d), indicating that septic shock occurred.