INS and hydrops fetalis: Fasting insulin did not differ between the groups (1.1 ± 0.2 ng/ml, 1.6 ± 0.3 ng/ml, 1.3 ± 0.2 ng/ml, 1.5 ± 0.3 ng/ml for CON, HF, 2 h-HF and 2 × 1 h-HF rats).