CD8A and coronary artery disorder: Immune infiltration analysis showed a higher level of activated dendritic cells (aDC), basophils, conventional DCs (cDCs), macrophages, M1 macrophages, M2 macrophages, monocytes, and NKT cells, as well as a lower level of CD4+ memory T cells, CD8+ naïve T cells, CD8+ T cells, CD8+ CD8+ Tcm, CD8+ Tem, naïve B cells, NK cells, Th2 cells and Tregs in the AMI group when compared to the CHD group.