AGT and hydrops fetalis: At 6 weeks after HF model generation, serum Ang II levels seemed to be higher in the HF group than in the control or sham groups, although it did not reach statistical significance (37.8 ± 7.2 vs. 47.5 ± 24.4 vs. 56.3 ±19.9 pg/ml, p = .147 for the control, sham, and HF groups, respectively).