DPP4 and type 2 diabetes mellitus: [37] It has strong antioxidant activity, α‐glucosidase, and α‐amylase inhibitory activity.[38] Previous studies have shown it is effective in improving pancreatic and cognitive function in type 2 diabetes.[37, 39] In this study, by virtual screening and in vitro validation, we demonstrated that 4,5‐diCQA can disrupt the interaction between DPP4 and MYH9, leading to a downregulation of MYH9 expression.