MTHFD2 and hydrops fetalis: A comparison analysis revealed that MYOC, IFIT3, OGDHL, LRRC10, GATM, CRYM, XAF1, RSAD2, SPHKAP, MX1, MAPK10, ABCG2, PPM1K, SNCA, and TMEM71 were highly expressed in HF, whereas HMGCS2, TXNRD1, ARG2, MAP2K1, STAT3, MTHFD2, CHDH, and POR were poorly expressed (Fig. 3B).