SIRT1 Downregulation by Advanced Glycation End Products Activates RANKL‐Dependent Osteoclast Signaling and Drives Chondrocyte Senescence During Osteoarthritis Development
Advanced glycation end products suppress SIRT1 expression in osteoclasts, triggering RANKL-dependent bone resorption and accelerated chondrocyte senescence—a mechanism that directly couples metabolic stress to cartilage degradation in osteoarthritis. This pathway represents a biochemical link between systemic glucose metabolism and joint degeneration, suggesting that metabolic control earlier in life may alter osteoarthritis trajectory.

