GCG and rheumatoid arthritis: The potential effects of GLP-1 RAs on PsD can be more clearly understood by examining how these drugs interact with the molecular and cytokine pathways common to PsD and other rheumatologic and dermatologic conditions, including rheumatoid arthritis (RA), osteoporosis (OP), osteoarthritis (OA), psoriasis (PsO), and hidradenitis suppurativa (HS) (Table 4).