Fig. 5

Immune infiltration analysis of SAH hub genes. (A) Stacked bar plot showing the distribution of immune cell types in SAH and control samples, with significant correlations between major immune cells (NKT cells, monocytes, B cells, Th17 cells, and macrophages) and SAH hub gene expression. (B) Correlation matrix of immune cell populations, highlighting complex interactions within the SAH immune microenvironment. (C) Statistical differences in immune cell infiltration between SAH and control groups. (D) Ridge plot comparing the distribution patterns of immune cells (CD8 naïve, Tr1, nTreg, Th17, and Tfh) between SAH and control groups, demonstrating significant differences in immune cell expression.