Conversely, the expression of 2-B4 significantly decreased after HF compared to controls, within CD4+ and CD8+ with a minimal expression at post-operative timepoint (post-operative MFI: 81 [62–107] vs. controls MFI: 190 [178–200], p = 0.0001 and post-operative MFI: 307 [230–345] vs. controls MFI: 423 [358–448], p = 0.001, respectively; Figures 5E,F). This evidence concerns the gene CD8A and hydrops fetalis.