ALB and hydrops fetalis: It should be taken into account that albumin from HF subjects is more prone to covalent adduction and this is supported by two results: (1) a significant modification of His residues by iodoacetamide, which, by contrast, was negligible in control subjects and (2) the presence of a deoxy-fructosyl derivative on Lys 389 (DFK-Lys 389) only in HF subjects, despite the fact that the glucose content did not significantly change between the two groups.