PPARA and rheumatoid arthritis: GO enrichment analysis revealed that inflammatory responses were involved in the treatment of rheumatoid arthritis, diarrhea, and edema by Mugua, and KEGG pathway enrichment revealed that inflammation-related pathways, such as rheumatoid arthritis pathway, TNF signaling pathway, NF-κB signaling pathway, PI3K-Akt signaling pathway, and PPAR signaling pathway, were involved.