PECAM1 and hydrops fetalis: There were no significant differences in relative quantities of PECAM-1 between HF-APC and HF-Control livers (4 h: 1.02 ± 0.26 versus 0.84 ± 0.13; 24 h: 0.57 ± 0.19 versus 0.50 ± 0.14) (Figures 4(d)-(A) and 4(d)-(B)).