ALB and hydrops fetalis: In addition, comparing the percentages of thio-HSA, we observed an increase of thio-HSA in HF patients (16.07 ± 4.381%, and 10.21 ± 3.023%, respectively, p = 0.0013) and, consequently, a decrease in the reduced form of albumin, mercaptoalbumin (71.83 ± 3.214%, 64.62 ± 5.030%, in healthy subjects and HF patients, respectively, p = 0.0006) (Figure 1).