Supplementary Figure 8D shows the GSVA scores of four genes (KLRG1, LYAR, CD6, and DGKZ) in GSE59867 (16), which exhibited a similar trend. In addition, we considered the overlap between all DE genes from the dataset GSE59867 (16) and 115 genes from the B_C4 marker genes for the analysis. We obtained a total of 84 genes. We used these 84 genes for protein interaction network analysis using the STRING online tool. Among them, the upregulated gene with p < 0.05 and multiple linker proteins greater than 10 was ITGB2, which may play an important role in HF patients after MI (Figure 6). This evidence concerns the gene DGKZ and hydrops fetalis.