LEP and hydrops fetalis: There was significant positive correlation between fat mass and leptin mRNA expression in Re-LF groups (r = 0.61, P < 0.05, Fig. 7a), whereas the correlation was not observed in FR and Re-HF group (FR, r = 0.48, P > 0.05, Re-HF, r = 0.30, P > 0.05).