TNNI3 and hydrops fetalis: Group pretreated with 7-HF (10 mg/kg) + ISO restored all cardiac biomarkers significantly, including cTnI (0.926 ± 0.03), CK-MB (176.27 ± 5.16), LDH (463.77 ± 17.903), ALT (58.80 ± 3.68) and AST (72.986 ± 7.37) (Figure 4A–E).