Serum IL-1β levels were significantly lower in the CA-AKI + Fasudil (vs. CA-AKI) group at all time points (Day 1, p < 0.0001; Day 3, p < 0.0001; Day 7, p < 0.0001; Day 13, p = 0.019). The gene discussed is IL1B; the disease is acute kidney injury.