PPARA and Cushing syndrome due to macronodular adrenal hyperplasia: The KEGG analysis unveiled that the DEGs were predominantly implicated in various pathways, notably the Wnt signaling pathway, Cushing syndrome, neuroactive ligand-receptor interaction, protein digestion and absorption, cortisol synthesis and secretion, cholesterol metabolism, salivary secretion, and the PPAR signaling pathway (Figure 4B).