Figure 2

Principal component analysis (PCA) plots showing the expression variability of DEGs across all the samples in (A) GSE67652 and (B) GSE80496 datasets. Each point in the plot signifies the relative expression value of all DEGs dimensionally reduced concerning every sample leading to distinct cluster formations. Healthy adult, healthy elder, sepsis adult, and sepsis elder samples in (A) are represented by orange-, green-, cyan-, and magenta-colored points. The orange and cyan colored points represent healthy and sepsis samples in (B).