ALB and ischemia: This finding is in apparent contradiction with the commonly known enhancement of the bilirubin AF signal upon the binding of its unconjugated form to albumin [66], and can be explained by the decrease of proteins in the ischemia and reperfusion group, as indicated by the AF values estimated at 340 ± 10 nm in the spectra excited at 280 nm, the conditions typical of albumin (Figure 6D).