CD8A and myocardial infarction: Four of them, including absolute counts of human leukocyte antigen (HLA) DR++ monocytes, absolute counts of CD8dim natural killer T cells, absolute counts of B cells, and CD8 on CD8 + T cells, were positively correlated with the development of MI, whereas the other 3, that is, CD45 on CD4 + T cells, FSC on HLA DR + natural killer cells, and HLA DR on HLA DR + T cell, were negatively associated with the development of MI.