A lowest number of CD163 positive cells (6.6 ± 1.2%) was found in the MA@PNS-HF group, and both the PNS-HF (9.3 ± 1.3%) and MA@HF (10.6 ± 1.1%) groups had a significantly lower proportion of cells that expressed CD163 markers than that in the control (17.9 ± 1.3%) and HF (19.8 ± 2.1%) groups. The gene discussed is CD163; the disease is hydrops fetalis.