Figure 9. The functional annotation of NDUFB9 and SLC2A1 in the OA samples. (A) GSEA was conducted according to the median expression levels of the genes. (B, C) The biological processes associated with NDUFB9 (B) and SLC2A1 (C). (D, E) The signal pathways most relevant to NDUFB9 (D) and SLC2A1 (E). Abbreviation: GSEA, Gene Set Enrichment Analysis.