Overall, GRIN1, GRIN2C, GRIA3, 5HTR1A and DRD1A levels were lower, GRIN3B and GRIA1 were higher and GRIN2B, GRIN3A, GABARG2, ADRA1A, DRD1B (DRD5) and DRD1D were similarly expressed in the HF of the control group when compared to the NCL. Here, DRD1 is linked to hydrops fetalis.