IFNA1 and rheumatoid arthritis: In this study, a total of 199 DEGs were obtained using a dataset of whole blood samples from RA and SAB (GSE93272 and GSE33341), and they were found to be closely associated with positive/negative regulation of the immune system and regulation of the IFN-I (IFN-α/β) pathway and related pathways of the immune system response to a virus by KEGG, GO, and ClueGO analyses.